JIS SCM440 Steel Mechanical Properties Alloy Structual Steel

1.Product name
JIS SCM440 Steel Mechanical Properties Alloy Structual Steel
2.keyword  
SCM440 Steel Mechanical Properties  
3.Standard
AISI/ASTM/DIN/NF/JIS/GB/BS
4.Steel Grade
AISI 4140/ASTM 4140/DIN 1.7225 /NF 40CD4 /JIS SCM440 /GB 42CrMo /BS 708M40
5.Chemical Compositions(%)
C: 0.38-0.45   Si: 0.17-0.37  Mn: 0.50 , -0.80  P≤0.035  S ≤0.035  
Cr: 0.90-1.20  Mo: 0.15-0.25
6.Mechanical properties
Tensile strength σb (MPa): ≥1080(110)
Yield strength σs (MPa): ≥930(95)
Elongation δ5 (%): ≥12
Area shrinkage ψ (%): ≥45
Impact energy Akv (J): ≥63
Impact toughness value αkv (J/cm2): ≥78(8)
Hardness: ≤217HB
Sample size: sample blank size is 25mm
7.Surface treatment
Black/Peeling/Polishing/Machined
8.Techniqu , e
Cold/Hot rolled, Cold-Drawn or Hot Forged
9.Heat Treatment
Annealed; Quenched; Tempered
10.Delivery Condition
Hot Rolled or Forged/Peeled or Black Surface/Annealed or QT
Heat treatment standard Quenching at 850℃, oil cooling; tempering at 560℃,
water cooling, oil cooling
10.Feature
This steel has good strength, good toughness, high hardenability, good
workability, small processing deformation, quite good fatigue resistance, small
deformation during quenching, high creep strength and durable strength at high
temperature and so on.
11.Test
SGS/UT100%/Elements Testing
12.Certificate
SGS/ISO/Mill Certificate
13.Delivery status
Delivered in heat-treated (normalized, annealed or high temperature tempered)
or unheated state
14.E-mail
jacklu@songshunsteel.com
15.Skype/Whatsapp/ , Wechat
+86-18269260283
16.Company website
https://steelpurchase.com/
http://www.songs , hunsteel.com/
17.songshunmoldsteel41404340

Minimum Order: 1 tons

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