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WORLDRACYCLES.COM sells model bicycles : Specialized Mountain Bikes, Specialized Road Bikes, Scott Mountain Bike, Scott Road Bike, Cannondale Mountain Bike, Cannondale Road Bike, Cervelo Mountain Bike, Cervelo Road Bike, Giant Mountain Bike, Giant Road Bike, Trek Mountain Bike, and Trek Road Bike Buy 2022 SCOTT ADDICT RC PRO ROAD BIKE from World Racycles is 100% safe, Because purchase products at World Racycles provide a 100% money back guarantee. Location World Racycles : Jl. Merak No. 48B. Medan. Contact us : order@worldracycles.com, To purchase online visit the website : worldracycles.com Price : USD 5,200.00 Min Order : 1 - 5 Pcs Lead Time : 6 - 9 Days Port : CIF / Kualanamu International Airport Terms : Wise, Bank Transfer, Western union, Moneygram & Xoom Shipment : Worldwide via FedEx, DHL, UPS Product : Ori and Ready in stock 2022 SCOTT ADDICT RC PRO FEATURES • Addict RC Disc HMX Carbon Frame • Addict RC HMX Fork • Shimano Dura-Ace Di2 Disc 24 Speed • Zipp 303SE Carbon Tubeless Disc • Schwalbe PRO ONE TL-Tires • Syncros Carbon parts FRAME Addict RC Disc HMX Road Race geometry / Replaceable Derailleur Hanger Internal cable routing FORK Addict RC HMX Flatmount Disc 1 1/4"-1 1/2" Eccentric Carbon steerer REAR DERAILLEUR Shimano Dura-Ace RD-R9250 24 Speed Electronic Shift System FRONT DERAILLEUR Shimano Dura-Ace FD-R9250 Electronic Shift System SHIFTERS Shimano Dura-Ace ST-R9270 Dual control 24 Speed Eletroninc Shift System CRANKSET Shimano Dura-Ace FC-R9200 Hollowtech II 52x36 T BB-SET Shimano SM-BB92-41B CHAIN Shimano Dura-Ace CN-M9100-12 CASSETTE Shimano Dura Ace CS-R9200-12 11-30 BRAKES Shimano BR-R9270 Hyd.Disc ROTOR Shimano SM-MT900 CL rotor 160/F and 160/R HANDLEBAR Syncros Creston iC SL Carbon combo SEATPOST Syncros Duncan SL Aero SEAT Syncros Belcarra Regular 1.0 HEADSET Syncros Addict RC Integrated WHEELSET Zipp 303SE Carbon tubless disc-brake 24 Front / 24 Rear Syncros SL Axle w/Removable Lever with Tool FRONT TIRE Schwalbe PRO ONE Microskin, TL-Easy, Fold 700x28C REAR TIRE Schwalbe PRO ONE Microskin, TL-Easy, Fold 700x28C

Minimum Order: 1 bags

Best Waist Trainer Wholesale Hollow Latex White Best Waist Trainer For Lower Belly Fat MH1923 This hollow latex waist trainer is highly breathable, so it won’t smell bad even when worn in summer. The three rows of hook-and-eye buttons can tighten the waist, shape an hourglass-shaped figure, and facilitate the adjustment of the waist circumference, which can be adjusted to increase or decrease at any time. Product Details Product name Best Waist Trainer Wholesale Hollow Latex White Best Waist Trainer For Lower Belly Fat MH1923 Design By NANBIN Design Team Size 3XS-6XL Thickness Standard Material Latex Color As Shown Weight 0.5kg Crowd Waist trainer for everyday use Brand NANBIN Model Number MH1923

WORLDRACYCLES.COM sells model bicycles : Specialized Mountain Bikes, Specialized Road Bikes, Scott Mountain Bike, Scott Road Bike, Cannondale Mountain Bike, Cannondale Road Bike, Cervelo Mountain Bike, Cervelo Road Bike, Giant Mountain Bike, Giant Road Bike, Trek Mountain Bike, and Trek Road Bike Buy 2022 BMC ROADMACHINE X ONE ROAD BIKE from World Racycles is 100% safe, Because purchase products at World Racycles provide a 100% money back guarantee. Location World Racycles : Jl. Merak No. 48B. Medan. Contact us : order@worldracycles.com, To purchase online visit the website : worldracycles.com Price : USD 3,800.00 Min Order : 1 - 5 Pcs Lead Time : 6 - 9 Days Port : CIF / Kualanamu International Airport Terms : Wise, Bank Transfer, Western union, Moneygram & Xoom Shipment : Worldwide via FedEx, DHL, UPS Product : Ori and Ready in stock 2022 BMC ROADMACHINE X ONE SPECIFICATION FRAME Roadmachine X Premium Carbon with Tuned Compliance Concept Endurance • Internal Cable Routing • PF86 Bottom Bracket • Flat Mount Disc • 12x142mm Thru-Axle FORK Roadmachine X Premium Carbon with Tuned Compliance Concept Endurance • Internal Cable Routing • Flat Mount Disc • 12x100mm Thru-Axle • 50mm Offset (Size 47-51), 45mm Offset (Size 54-61) GEARS 1x12 CHAINWHEEL SRAM FORCE AXS 1 44T CASSETTE SRAM FORCE AXS CHAIN SRAM FORCE 12 Speed REAR DERAILLEUR SRAM FORCE eTap AXS SHIFTERS SRAM FORCE eTap AXS HRD BRAKES SRAM FORCE eTap AXS HRD, Centerline X Rotors (160/160) HANDLEBAR BMC RAB 02, Ergo Top Shape, Compact Bend STEM BMC ICS1 - Integrated Cockpit Design SEATPOST Roadmachine X Premium Carbon D-Shaped Seatpost • 15mm Offset SADDLE Fizik Terra Argo X3 HUBS CRD-321 RIMS CRD-321 Carbon, Tubeless Ready, 35mm TIRES WTB Expanse, 32mm TIRE CLEARANCE 33mm (Measured Width)

Minimum Order: 1 bags

WORLDRACYCLES.COM sells model bicycles : Specialized Mountain Bikes, Specialized Road Bikes, Scott Mountain Bike, Scott Road Bike, Cannondale Mountain Bike, Cannondale Road Bike, Cervelo Mountain Bike, Cervelo Road Bike, Giant Mountain Bike, Giant Road Bike, Trek Mountain Bike, and Trek Road Bike Buy 2022 BMC ROADMACHINE ONE ROAD BIKE from World Racycles is 100% safe, Because purchase products at World Racycles provide a 100% money back guarantee. Location World Racycles : Jl. Merak No. 48B. Medan. Contact us : order@worldracycles.com, To purchase online visit the website : worldracycles.com Price : USD 3,600.00 Min Order : 1 - 5 Pcs Lead Time : 6 - 9 Days Port : CIF / Kualanamu International Airport Terms : Wise, Bank Transfer, Western union, Moneygram & Xoom Shipment : Worldwide via FedEx, DHL, UPS Product : Ori and Ready in stock 2022 BMC ROADMACHINE ONE SPECIFICATION FRAME Roadmachine Premium Carbon with Tuned Compliance Concept Endurance • Internal Cable Routing • PF86 Bottom Bracket • Flat Mount Disc • 12x142mm Thru-Axle FORK Roadmachine Premium Carbon with Tuned Compliance Concept Endurance • Internal Cable Routing • Flat Mount Disc • 12x100mm Thru-Axle • 50mm Offset (Size 47-51), 45mm Offset (Size 54-61) GEARS 2x12 CHAINWHEEL SHIMANO Ultegra 12spd 50-34T CASSETTE SHIMANO Ultegra 12spd 11-34T CHAIN SHIMANO Ultegra 12spd FRONT DERAILLEUR SHIMANO Ultegra Di2 12spd REAR DERAILLEUR SHIMANO Ultegra Di2 12spd SHIFTERS SHIMANO Ultegra Di2 12spd BRAKES SHIMANO Ultegra, RT-MT800 Rotors (160/140) HANDLEBAR BMC RAB 02, Ergo Top Shape, Compact Bend STEM BMC ICS1 - Integrated Cockpit Design SEATPOST Roadmachine Premium Carbon D-Shaped Seatpost • 15mm Offset SADDLE Fizik Taiga HUBS CRD-321 RIMS CRD-321 Carbon, Tubeless Ready, 35mm TIRES VITTORIA RUBINO, 28mm TIRE CLEARANCE 33mm (Measured Width)

Minimum Order: 1 bags

A stud is essentially just a piece of threaded bar. This often resembles a machine screw without a head, although some studs to have heads that get permanently incorporated into the part they are attached to. Studs are often designed to be permanently attached to one part, proving a means of attaching another part in conjunction with a nut. This type of stud may be welded, swaged or bonded to attach it and may, therefore, have a small head to enable this. Other studs may have threads at both ends. In some cases, these are both intended to accept nuts — such a stud is called a stud bolt. Alternatively, a stud may have a self-taping thread at one end, intended to be permanently screwed into a part, and a machine thread at the other end to accept a nut

(1) 1.6511 Alloy Steel Rod Refers To The Corresponding Steel Number China GB steel number 40CrNiMoA, German DIN steel number 36CrNiMo4, German DIN material number 1.6511, French NF standard 40NCD3, Japanese JIS standard SNCM439, British BS standard 816M40, American AISI/ASTM4340, American UNS standard G43400. (2) 1.6511 Alloy Steel Rod Chemical Composition C:0.37-0.44 Si:0.17-0.37 S：≤0.035 P:≤0.035 Mn:0.50-0.80 Cr:0.60-0.90 Mo:0.15-0.25 N:1.25-1.65 (3) 1.6511 Alloy Steel Rod Surface Treatment Plate: Origin Black, Orign cold rolled bright, Machined, Grinded Bar:Origin Black, Orign cold rolled(drawn) bright, Turned, Peeled, Grinded (4) Charateristics 4340 steel offers toughness and high strength inthe heat treated condition, with in roun , d bar 4340 is available fully certified and suitable for applicat , ions  requiring a quality tensile alloy steel.AISI 4340 is commonly supplied quenched and tempered with a hardness of between 24 to 29HRc (5) Contact us Feel free to contact us,we are glad to serve for you. Songshun Always Open the Door for You. MiKi Zhuo Skype/Whatsapp/Wechat:+86-18269260283 A , DD:No.4 Dongda Street, Shatou, Changan Town, Dongguan City, Guangdong Province, P.R.C China songshunmoldsteel41404340

Minimum Order: 1 bags

WORLDRACYCLES.COM sells model bicycles : Specialized Mountain Bikes, Specialized Road Bikes, Scott Mountain Bike, Scott Road Bike, Cannondale Mountain Bike, Cannondale Road Bike, Cervelo Mountain Bike, Cervelo Road Bike, Giant Mountain Bike, Giant Road Bike, Trek Mountain Bike, and Trek Road Bike Buy 2022 BMC ROADMACHINE 01 TWO ROAD BIKE from World Racycles is 100% safe, Because purchase products at World Racycles provide a 100% money back guarantee. Location World Racycles : Jl. Merak No. 48B. Medan. Contact us : order@worldracycles.com, To purchase online visit the website : worldracycles.com Price : USD 7,400.00 Min Order : 1 - 5 Pcs Lead Time : 6 - 9 Days Port : CIF / Kualanamu International Airport Terms : Wise, Bank Transfer, Western union, Moneygram & Xoom Shipment : Worldwide via FedEx, DHL, UPS Product : Ori and Ready in stock 2022 BMC ROADMACHINE 01 TWO SPECIFICATION FRAME Roadmachine 01 Premium Carbon with Tuned Compliance Concept Endurance • ICS Technology, Stealth Cable Routing • PF86 Bottom Bracket • Flat Mount Disc • 12x142mm Thru-Axle FORK Roadmachine 01 Premium Carbon with Tuned Compliance Concept Endurance • ICS Technology, Stealth Cable Routing • Flat Mount Disc • 12x100mm Thru-Axle • 50mm Offset (Size 47-51), 45mm Offset (Size 54-61) GEARS 2x12 CHAINWHEEL SRAM RED AXS 46-33T CASSETTE SRAM RED XG-1290 10-33T CHAIN SRAM RED 12 Speed FRONT DERAILLEUR SRAM RED eTap AXS REAR DERAILLEUR SRAM RED eTap AXS SHIFTERS SRAM RED eTap AXS HRD BRAKES SRAM RED eTap AXS HRD, Centerline XR Rotors (160/160) HANDLEBAR ICS Carbon, One-Piece Full Carbon Cockpit STEM ICS Carbon, One-Piece Full Carbon Cockpit SEATPOST Roadmachine 01 Premium Carbon D-Shaped Seatpost • 15mm Offset SADDLE Fizik Argo Tempo R5 (150mm) HUBS ENVE Alloy Disc RIMS ENVE SES 3.4 AR DISC, 30/40mm TIRES Vittoria Corsa Control, 28mm TIRE CLEARANCE 33mm (Measured Width)

Minimum Order: 1 bags

Description of 4340 chromoly steel:4340 alloy steel is an iron-based alloy containing nickel, chromium and molybdenum. The relatively high carbon content gives this alloy exceptional strength in applications where severe service conditions exist.4340 alloy steel has high strength, good toughness and good ductility. In addition, the alloy is not prone to embrittlement. 4340 steel application: It is used as important quenched and tempered parts that require good toughness, high strength and large size, such as heavy machinery and high-load shafts, turbine shafts with a diameter greater than 250mm, helicopter rotor shafts, turbojet engine turbine shafts, blades, high Loaded transmission parts, crankshaft fasteners. Gears, etc.; can also be used for rotor shafts and blades whose operating temperature exceeds 400 °C; can also be used to manufacture important parts with special performance requirements after nitriding treatment, and can be used for ultra-high temperature after low temperature tempering or austempering. Use of strength steel. 4340 Steel Features:It has high strength, toughness, excellent hardenability and stability against overheating, good plasticity and heat resistance, uniform material, high working reliability, weldability, non-leakage, and simple steel structure production. Short construction period and good assembly. 4140 steel processing technology: Heat treatment standard: quenching at 850℃, oil cooling; tempering at 560℃, water cooling, oil cooling; Metallographic structure: tempered sorbite Heat treatment: 1. Normalizing: Heat the furnace to 900°C~930°C, keep the thickest cross section per inch at this temperature for one hour, and cool in air. 2. Heat to austenitizing at a temperature of 860℃~885℃, and keep the thickest cross section per inch for one hour at this temperature 3. Normalizing or oil quenching, and cooling to a maximum temperature of 121°C 4. Temper at a temperature that achieves the following mechanical properties. The thickest cross-section per inch is held for one hour at the tempering temperature, and the tempering temperature range is 640 ° C ~ 680 ° C 5. For each heat treatment process, a heat treatment chart must be drawn. 6. The mechanical property test shall be carried out in accordance with the stipulations of ASTM. A-370. The sample material used for the test shall be cut from the test bar of the same furnace steel. The casting or forging represented by the sample and the test bar shall be in the same furnace. The test bar shall be heat treated in the same furnace together with the charge. 7. The mechanical properties should meet the following requirements: (Tested with a test bar, sampling according to APT 6A, 110K standard) - Tensile strength minimum lb/inch (862) Yield strength minimum lb/inch 110.000 (758) 2 inches The minimum value of elongation is 15% and the minimum value of section shrinkage rate is %40. Brinell hardness HB285 ~ take, the casting or forging represented by the sample and the test bar must be in the same furnace, and the test bar should be heat treated in the same furnace together with the charge. 8. The mechanical properties should meet the following requirements: (tested with test bars, sampling according to APT 6A, 110K standard) - minimum tensile strength lbs/inch (862) minimum yield strength lbs/inch (758) 2 inches Minimum elongation %15 Minimum shrinkage of section %40 Brinell hardness HB285~352 9. Marking: Each part shall be printed with heat treatment marks and hardness with low stress steel stamp. Company Overview Established in 2009,Songshun Steel supplies a wide range of carbon, alloy and tool steel products, including high speed tool steel, cold work tool steel, hot work tool steel, plastic mould steel, engineering steel and machine structural steel etc. After more than 10 years development and growing, Songshun Steel becomes one comprehensive special steel factory, stockist and exporter.songshunmoldsteel41404340 ,

Minimum Order: 1 bags

We can supply the products according to customer's drawings, samples and performance requirement.​ 1. Satisfy various technical request. 2. Best delivery time. 3. higher cost performance. 4. OEM, ODM and OBM are welcomed. We can supply the products according to customer's drawings, samples and performance requirement.​ 1. Satisfy various technical request. 2. Best delivery time. 3. higher cost performance. 4. OEM, ODM and OBM are welcomed.

WORLDRACYCLES.COM sells model bicycles : Specialized Mountain Bikes, Specialized Road Bikes, Scott Mountain Bike, Scott Road Bike, Cannondale Mountain Bike, Cannondale Road Bike, Cervelo Mountain Bike, Cervelo Road Bike, Giant Mountain Bike, Giant Road Bike, Trek Mountain Bike, and Trek Road Bike Buy 2022 BMC ROADMACHINE 01 THREE ROAD BIKE from World Racycles is 100% safe, Because purchase products at World Racycles provide a 100% money back guarantee. Location World Racycles : Jl. Merak No. 48B. Medan. Contact us : order@worldracycles.com, To purchase online visit the website : worldracycles.com Price : USD 5,100.00 Min Order : 1 - 5 Pcs Lead Time : 6 - 9 Days Port : CIF / Kualanamu International Airport Terms : Wise, Bank Transfer, Western union, Moneygram & Xoom Shipment : Worldwide via FedEx, DHL, UPS Product : Ori and Ready in stock 2022 BMC ROADMACHINE 01 THREE SPECIFICATION FRAME Roadmachine 01 Premium Carbon with Tuned Compliance Concept Endurance • ICS Technology, Stealth Cable Routing • PF86 Bottom Bracket • Integrated Seatpost Clamp • Flat Mount Disc • 12x142mm Thru-Axle FORK Roadmachine 01 Premium Carbon with Tuned Compliance Concept Endurance • ICS Technology, Stealth Cable Routing • Flat Mount Disc • 12x100mm Thru-Axle • 50mm Offset (Size 47-51), 45mm Offset (Size 54-61) CHAINWHEEL SHIMANO Ultegra 50-34T CASSETTE SHIMANO Ultegra 11-34T CHAIN SHIMANO Ultegra FRONT DERAILLEUR SHIMANO Ultegra Di2 REAR DERAILLEUR SHIMANO Ultegra Di2 SHIFTERS SHIMANO Ultegra Di2 BRAKES SHIMANO Ultegra, RT-MT800 Rotors (160/140) HANDLEBAR BMC RCB01 Carbon, Ergo Top Shape, Compact Bend STEM BMC ICS2 - Integrated Cockpit Design SEATPOST Roadmachine 01 Premium Carbon D-Shaped Seatpost • 15mm Offset SADDLE Fizik Argo Tempo R5 (150mm) HUBS DT Swiss 240 Straightpull, Ratchet SyStem 36 SL RIMS DT Swiss ERC 1400 DICUT, 45mm TIRES Vittoria Corsa Control, 28mm TIRE CLEARANCE 33mm (Measured Width)

Minimum Order: 1 bags

Low alloy steel refers to alloy steel with less than 5% of total alloying elements. Low alloy steel is relative to carbon steel. On the basis of carbon steel, one or several alloying elements are intentionally added to the steel in order to improve the properties of the steel. When the amount of alloy added exceeds the general content of the normal production method of carbon steel, the steel is called alloy steel. When the total amount of alloy is less than 5%, it is called low alloy steel, ordinary alloy steel is generally less than 3.5%, alloy content between 5-10% is called medium alloy steel, and more than 10% is called high alloy steel. China's steel output has exceeded 600 million tons, the quantity of steel is no longer the main contradiction, and the contradiction of unreasonable steel varieties and structure is very prominent. The main task of the current industry is to strive to improve the market competitiveness of products, stand at a new starting point for sustainable development, and make vigorous development of low-alloy steel an important part of the development strategy. Many ordinary steel enterprises have realized that the production of low-alloy steel is the key to improving the technical content and added value of products in the adjustment of the steel variety structure and the preparation of scientific and technological development plans. The management cadres felt that "success is also low-alloy steel, and failure is also low-alloy steel", and they urgently demand a comprehensive understanding of low-alloy steel. The production situation of ordinary low alloy steel in my country can be summarized into the following points: 1. It is low carbon in terms of carbon content, and the carbon content is generally less than 0.20%; 2. In terms of alloys, primary steel and binary steel occupy a large proportion; 3. In terms of supply status, most of them are delivered in hot-rolled state; 4. Many steel grades add rare earth elements to improve the overall performance; 5. Most common low alloy steels are ferrite + pearlite type. Our company Dongguan Songshun Mould Steel Co., Ltd. specializes in the production of alloy steel for more than 10 years, mainly producing various alloy steel products, if you need more price, cooperation or quality information, please notify us jacklu@songshunsteel.com

Minimum Order: 1 bags

Dongguan Songshun Mould Steel Co., Ltd. is an Indusrtial and trading company with 2 warehouses that manufactures good & high quality kinds of steels starting from 2012. The company provides the customized products and OEM service. What´s more, we keep the mass stock of over 20000 tons. In those years, we offer a wide range of steels to our customers from all over the world. And we enjoy high praise among them. Quick Details Steel Grade:high speed tool steel Standard:AiSi, ASTM, bs, DIN, GB, JIS, AISI,ASTM,BS,DIN,JIS Place of Origin:Guangdong, China Brand Name:SONGSHUN Model Number:T1/1.3355/SKH2/W18Cr4V Technique:forged or hot rolled, Hold rolled,Cold Drawn Application:Tool Steel Bar, Die Steel Bar Alloy Or Not:Is Alloy Special Use:Mold Steel Type:Alloy Steel Bar, Alloy Steel Bar,Mold Steel Surface:black/oiled/bright Shape:round , /flat/plate Hardness of annealed:HBS≤240-300 Dimensions:10mm~800mm Certificate:SGS BV ISO Charateristics After electroslag remelting (ESR), H11 steel will have a fine uniform texture, good hardenability, excellent machining & polishing performance, high toughness & plasticity, good wear/heat/fatigue resistance in high and low temperature. Applications Typical H11 applications include die casting dies for aluminium, magnesium and zinc, extrusion dies for aluminium and brass, liners, mandrels, pressure pads, followers, bolsters, die cases, die holders and adaptor rings for copper and brass extrusion. Other applications include plastic moulds, shear blades for hot work and hot swaging dies. Also used to produce hot stamping and press forge dies, split hot heading dies, gripper dies, hot punching, piercing and trimming tools. WELCOME TO GET A QUOTE MiKi Zhuo E-mail:jacklu@songshunsteel.com Skype/W , hatsapp/Wechat:+86-18269260283 ADD:No.4 Dongda Street, Shatou, Changan Town, Dongguan City, Guangdong Province, P.R.C China Company website: https://steelpurchase.com/ http://w , ww.songshunsteel.com/ songshunmoldsteel41404340 ,

Minimum Order: 5 dozens

PH/ORP gauges not only fulfill the remote management technology WIFI but also has a temperature detection and temperature compensation function, supporting pH electrodes with temperature to measure temperature changes in aqueous solutions. It is a patented temperature drift compensation technology, which makes the instrument more stable and accurate in all kinds of environments. The PH/ORP gauges use salt-bridged primary battery electrodes (PH electrodes) to detect changes in the concentration of hydrogen ions in the solution, which affect the electrode level. It is usually made of glass and commonly known as PH glass electrode measurement. Mathematic defines pH as a commonly used congenital negative value for the concentration of hydrogen ions, i.e. pH=- lg[H⁺] Applications of Online PH ORP gauge 1 Water treatment monitoring: drinking water surface water quality groundwater environmental sewage discharge monitoring urban drainage network monitoring 2 Industrial process monitoring and dosing control treatment: chemical petroleum paper food medicine electroplating PCB manufacture

1. 4140 steel is an alloy structural steel with high strength, hardenability, good toughness and small deformation during quenching.It is used to manufacture forgings that require higher strength and larger quenched and tempered section than 35CrMo steel, such as large gears for locomotive traction, supercharger transmission gears, rear axles, connecting rods and spring clips that are heavily loaded, and can also be used for Drill pipe joints and fishing tools for oil wells below 2000m. 2. 4140 Product Process Treatment Heat treatment process: Annealing annealing No.1 "760±10℃ annealing, furnace cooling to 400℃ air cooling. HB220-230 Normalize normalize No.4 860±10℃ normalizing, air-cooled. Quenching+tempering No.5 840±10℃ quenching water or oil (depending on the complexity of the product shape), tempering at 680-700 degrees. HB<217 Quenching+tempering No.6 quenching oil at 840±10℃, and then tempering at 470℃. HRC41-45 Quenching+tempering No.7 quenching oil at 840±10℃, and then tempering at 480℃. HRC35-45 Quenching+tempering No.8 Quenching oil at 850°C, and then tempering at 510°C. HRC38-42 Quenching+tempering No.9 quenching oil at 850℃, and then tempering at 500℃. HRC40-43 Quenching+tempering No.10 Quenching oil at 850℃, and then tempering at 510℃. HRC36-42 Quenching+tempering No.11 Quenching oil at 850℃, and then tempering at 560℃. HRC32-36 Quenching+tempering No.12 Oil quenching at 860°C, and then tempering at 390°C. HRC48-52 3. 4140 Product Information 1.Surface Treatment Plate: Origin Black, Orign cold rolled bright, Machined, Grinded Bar:  Origin Black, Orign cold rolled(drawn) bright, Turned, Peeled, Grinded 2.Heat treatment specification Heat treatment standard: quenching at 850℃, oil cooling; tempering at 560℃, water cooling, oil cooling; 3.Available Size: Round bar: Diameter(mm) Max 800mm; Length(mm) Max 12000mm. Plate: Thickness(mm) Max 800mm; Width(mm) Max 2300mm; Length(mm) Max 12000mm. Condition: Cold rolled(drawn)≤50mm, Hot rolled≤12-250mm, Hot forged≥50mm. 4.AISI 4140/DIN 1.7225 Introduction: AISI 4140 alloy steel is chromium, molybdenum, manganese containing low alloy steel. It has high fatigue strength, abrasion and impact resistance, toughness, and torsional strength. 5.Video Description https://steelpurchase.com/steel-video/ 4. We provide high-quality steel, ex-factory price, support customization, strong company and factory strength; welcome your inquiry and order；please contact us for quotes. MiKi Zhuo E-mail:jacklu@songshunsteel.com Skype/W , hatsapp/Wechat:+86-18269260283 ADD:No.4 Dongda Street, Shatou, Changan Town, Dongguan City, Guangdong Province, P.R.C China For more 4140 steel product information, please click this link: https://steelpurchase.com/4140-scm440-172 , 25-steel/ Company website: https://steelpurchase.com/ http://w , ww.songshunsteel.com/ songshunmoldsteel41404340 ,

Minimum Order: 3 bushels