Offers to Sell

OSFP 400G LR4 CWDM4 10KM LC transceivers for optical communication Aerech Networks Compatible vendor: Cisco, Huawei, Arista, Juniper, Dell, Extreme over 100+ vendors. Certifications: CE, ROHS, FCC Warranty: 3 years Lead time: 1-3 working days. For more details, please visit Aerech Networks www.aerech.com If need prompt reply, please reach at james@aerech.com

Minimum Order: 1 bags

QSFP-DD 400G LR4 CWDM4 10KM LC Optical Transceiver Data Center Aerech Networks Compatible vendor: Cisco, Huawei, Arista, Juniper, Dell, Extreme over 100+ vendors. Certifications: CE, ROHS, FCC Warranty: 3 years Lead time: 1-3 working days. For more details, please visit Aerech Networks www.aerech.com If need prompt reply, please reach at james@aerech.com

Minimum Order: 1 bags

SFP+ 10G LR 1310nm 10KM Optical Fiber Transceivers for Datacom and Telecom Aerech Networks Compatible vendor: Cisco, Huawei, Arista, Juniper, Dell, Extreme over 100+ vendors. Certifications: CE, ROHS, FCC Warranty: 3 years Lead time: 1-3 working days. For more details, please visit Aerech Networks www.aerech.com If need prompt reply, please reach at james@aerech.com

Minimum Order: 1 bags

XFP 10G CWDM 80KM 1470-1610nm Optical Fiber Transceiver Module Aerech Networks Compatible vendor: Cisco, Huawei, Arista, Juniper, Dell, Extreme over 100+ vendors. Certifications: CE, ROHS, FCC Warranty: 3 years Lead time: 1-3 working days. For more details, please visit Aerech Networks www.aerech.com If need prompt reply, please reach at james@aerech.com

Minimum Order: 1 bags

BIDI SFP+ 10G 40KM TX/RX 1330/1270nm Optical Fiber SFP Module Compatible vendor: Cisco, Huawei, Arista, Juniper, Dell, Extreme over 100+ vendors. Certifications: CE, ROHS, FCC Warranty: 3 years Lead time: 1-3 working days. For more details, please visit Aerech Networks www.aerech.com If need prompt reply, please reach at james@aerech.com

Minimum Order: 1 bags

SFP 1.25G LX 1310nm 10KM HPE Compatible Optical Transceivers DDM LC Compatible vendor: Cisco, Huawei, Arista, Juniper, Dell, Extreme over 100+ vendors. Certifications: CE, ROHS, FCC Warranty: 3 years Lead time: 1-3 working days. For more details, please visit Aerech Networks www.aerech.com If need prompt reply, please reach at james@aerech.com

Minimum Order: 1 bags

CWDM 1.25G SFP 1270-1610nm 80KM Arista Compatible Optical Transceivers Compatible vendor: Cisco, Huawei, Arista, Juniper, Dell, Extreme over 100+ vendors. Certifications: CE, ROHS, FCC Warranty: 3 years Lead time: 1-3 working days. For more details, please visit Aerech Networks www.aerech.com If need prompt reply, please reach at james@aerech.com

Minimum Order: 1 bags

SFP-BX-D/U 1.25G TX/RX 1310/1550nm 10KM Bidirectional Optical Transceivers Compatible vendor: Cisco, Huawei, Arista, Juniper, Dell, Extreme over 100+ vendors. Certifications: CE, ROHS, FCC Warranty: 3 years Lead time: 1-3 working days. For more details, please visit Aerech Networks www.aerech.com If need prompt reply, please reach at james@aerech.com

Minimum Order: 1 bags

DAC QSFP28 100G 1M Passive Direct Attach Optical Transceiver Cable Compatible vendor: Cisco, Huawei, Arista, Juniper, Dell, Extreme over 100+ vendors. Certifications: CE, ROHS, FCC Warranty: 3 years Lead time: 1-3 working days. For more details, please visit Aerech Networks www.aerech.com If need prompt reply, please reach at james@aerech.com

Minimum Order: 1 bags

QSFP+ 40G AOC 1M Active Optical Cable Compatible vendor: Cisco, Huawei, Arista, Juniper, Dell, Extreme over 100+ vendors. Certifications: CE, ROHS, FCC Warranty: 3 years Lead time: 1-3 working days. For more details, please visit Aerech Networks www.aerech.com If need prompt reply, please reach at james@aerech.com

Minimum Order: 1 bags

1. Fiber Patch Cord Basic Introduction: Duplex LC Uniboot Push-Pull connector gives you the option to change polarity with ease, it also has no loose pieces that could be dropped or lost when changing polarity with ease, it also has no loose pieces that could be dropped or lost when changing polarity. The LC Uniboot Push-Pull Duplex fiber optic patch cords are constructed with a 2.0mm 2-fiber round unitary cable available in plenum(OFNP) or low smoke zero halogen (LSZH) rated jacket materials to meet local ordinances. By using the 2.0mm cable which reduces cable volume by 50% the LC Uniboot Push -pull fiber optic patch cords are ideal for reducing cabling congestion in extremely high-density patch fields. These LC Uniboot patch cords are available in OM5+, OM4+, OM3, and OS2 fiber types with high-performance insertion loss essential for today's high-speed systems requiring very low connector insertion loss. 2. Uniboot Fiber Optic Patch Cord Benefit & Features: Pull Tab Design -- allows the LC Optical Cable easily plugged from the SFP connector or network adapter Polarity Change Uniboot LC Connector -- with this Polarity Change Uniboot LC optic cables, you can change the polarity easily yourself without tools, ONLY ONE Fiber Cover, SAVE More Space 10m long LC ethernet cable, 50/125 LSZH 2.0mm OD Fiber Patch Cable, OM3 MM Duplex LC-LC Fiber Optic Cables Patch cords using Uniboot technology combine, modularity, flexibility with easy insertion and removal from connectivity Uniboot connectors feature an adjustable polarity via a manual and independent rotation of each single connector body without exposing the fibers Uniboot technology features a push-pull mechanism operated by squeezing the connector boot Adjustable connector pitch between 5.25 and 6.25mm

1.3243 Steel Forging Technology The alloy element content of M35 steel is more than 22%. It is higher than M2 steel about 30%. It’s forging is difficult. You need to pay attention to it as the same as M42 steel forging. First of all, preheat it fully, the heat temperature is 1120℃ – 1150℃. And the temperature of the beginning is 1000℃ – 1050℃, the ending of it is must higher than 899℃. After forging, it should cold slowly and annealing on time to prevent cracking. M35 Steel Annealing Process If you case it up for the annealing after the forging, you will get a better result. If you can not do that, just make it cold to the indoor temperature then make it in. About the annealing process, just put it in the stove with the temperature which is lower than 500℃. Then heat to 840-860℃, keep the temperature for four to five hours. Furnace cooling to 500℃ below than out of it. Cooling slowly in the annealing furnace. After the annealing, its hardness is lower than 255HB. In order to prevent oxidative decarburization happen, the annealing should be careful. And there is an easy way can do that. Just put some wood dust to the annealing furnace. Notice for Quenching and Tempering Preheat two times: 600℃, 860℃. And the time of preheating is twice the time of heating. The request of quenching is 10-12s/mm. Needs the step hardening: 600℃→260-280℃→air cooling. The temperature of secondary hardening is 535-540℃ around. The hardness is bigger than 68HRC for after tempering. But the factories do not want the hardness of cutting tool is more than 68HRC due to the request for production. So it always is been tempering. As we can see from the table, the best temperature for quenching is in the range of 1215-1225℃. In this condition, it is suitable for annual cutting tools. Its hardness is about 67-67.5HRC. It satisfies the needs of high speed steel high speed steel for high strength, high hardness and high wear resistance. M35 steel that been quenching at the temperature below 1190℃ is good material for cold work die and low-speed cutting tools. And if it been quenching at the temperature higher than 1230℃ which will have a great red hardness. It will be a good choice for turning tools and etc. Quenching it in that way will cause overheating. But it is not a trouble, the key is to control it in the right way. Some cutting tools are overheating to be more useful. In China, we have been focusing on the steel industry for decades, as a professional supplier, a powerful steel factory, advanced technology, high- quality steel, we have our own cutting and processing facilities. Specific specifications can be customized and customized according to your needs. Provide reliable M35 high speed steel products as well as other high speed steels high speed steels, please contact us for any needs of high speed steel M35 steel.

Minimum Order: 1 bags

M35 steel is high speed tool steel . It also is called SKH55 steel and 1.3243 steel. After the heat treatment, its hardness, red hardness and wear resistance can be improved.M35 high speed steel is a good material for making tools which can handle high impact and abrasion. And it always is used to make advanced die, screw dies, reamer, milling cutter, iron head, punch, complex shape tools with high toughness. It is easy to do the hot and cold process. After the quenching and tempering, the hardness will be the same as M42 steel . And the hardness of them is 66±1HRC and 67±1 HRC. M35 steel round bar plate sheet properties and chemical composition as below. 1.3243 Steel Characteristics M35 and M42 are the most popular high speed steel grades in the international. The alloy element content of M35 steel is higher, and also has the cobalt element. So its red hardness is higher. It has great hardness at high temperature. The hot hardness, machinability and wearing resistance are good. M35 Steel Round Bar Application 1.It can be made all kinds of high hardness cutting tools. Such as saw blades, drills, taps, broaches, hobs and various milling cutters. 2.Also, it is good material for cold forging dies, drawing dies, cutting tools and etc. 3.It is widely used in the cold stamping products industry such as watch case factory and screw factory. It is suitable for the manufacture of wear-resistant and impact-resistant high- hardness tools for powerful cutting, advanced punching dies, screw dies, tools that require toughness and complex shapes, reamers, milling cutters, iron heads, punches, etc. The main uses are saw blades, drills, taps, hobs, broaches, end mills and various milling cutters, etc. It is also an excellent material for cold forging dies, wire drawing dies, knives, etc. It is widely used in cold stamping products industries such as watch case factories and screw factories. Songshun specialized in Special Steel for almost 20 years. We can supply mold steel, high speed steel, alloy steel, free cutting steel and etc.Welcome your contact 24 hours a day!!! E-mail:jacklu@songshunsteel.com Skype , /Whatsapp/Wechat:+86-18269260283 Songshun Tiktok:mikizhuo Songshun Facebook:Songshun Steel Songshun YouTube:MiKi Zhuo Songshun Company Website:https://steelpurchase.com/ http://www.songshunsteel.com/ songshunsteel , 41404340

Minimum Order: 2 barrels

M42 Steel Round Bar Sheet Plate Heat Treatment And Produced 1.Machinability It can be drilled, turned, threaded, broached, milled and tapped when it is in its annealed condition and rated at 45% of 1% carbon steel. 2.Forging It is preheated to 871°C (1599°F) in a slow manner and then soaked. This is followed by rapid heating to 1093°C (1999°F) and slow cooling. It is not suitable that temperatures below 982°C (1799°F) for the forging process. 3.Tempering M42 tool steel is tempered for three times at 538-593°C (1000-1099°F) and then cooled completely between cycles to get good results. Tempering is performed in vacuum furnaces or in salt baths. 4.Annealing Annealing must be performed after hot working and before re-hardening. Heat at a rate not exceeding 400°F per hour (222°C per hour) to 1500-1575°F (843-857°C), and hold for 1 hour per inch (25.4 mm) of thickness, minimum of 2 hours. Then cool slowly with the furnace at a rate not exceeding 50°F per hour (28°C per hour) to 1000°F (538°C). Continue cooling to ambient temperature in the furnace or in air. The resultant hardness should be 269 HBW or lower. 5.Hardening It is preheated to 871°C (1599°F), soaked and finally heated to 1204°C (2199°F). 6.Quenching A salt media is used for quenching M42 tool steel at 538°C (1000°F) and then the steel is air cooled. M42 High Speed Steel Round Bar Sheet Plate Supply Range Round Bar Specification: diameter 2mm – 200mm Surface: Black, Rough Machined, Turned or as per given requirements Sheet/Plate/Slab Specif , ication: thickness: 2-200mm; width 200-610mm Surface: Black, Rough Machined, Turned or as per given requirements M42 Steel Grade Equivalent Chart Country USA Germany/UK/France JAPAN ISO Standard ASTM A600-92a EN ISO 4957-1999 JIS G4403: 2006 ISO 4957-1999 Grades M42(t11342) HS 2-9-1-8 SKH59 HS 2-9-1-8 Delivery condition:In annealing (≤269HB), or after heat treatment (65.5- 68.5HRC). Quality control：100% UT (Ultrasonic Testing), UT Standard is SEP 1921-84 C/c. Songshun specialized in Special Steel for almost 20 years. We can supply mold steel, high speed steel, alloy steel, free cutting steel and etc.Welcome your contact 24 hours a day!!! E-mail:jacklu@songshunsteel.com Skype , /Whatsapp/Wechat:+86-18269260283 Songshun Tiktok:mikizhuo Songshun Facebook:Songshun Steel Songshun YouTube:MiKi Zhuo Songshun Company Website:https://steelpurchase.com/ http://www.songshunsteel.com/ songshunsteel , 41404340

Minimum Order: 1 bags