4140 Pre Hard Steel | 4140 Pre Hard Steel Bar | SAE 4140 Pre Hard Steel Plate
In stock
by Dongguan Songshun Mould Steel Co., Ltd.
USD 1066
https://steelpurchase.com/
Product name
Â
 4140 Pre Hard Steel | 4140 Pre Hard Steel Bar | SAE 4140 Pre Hard Steel Plate
keyword
 4140 steel round bar, 4140 Pre Hard Steel
Standard
AISI/ASTM/DIN/NF/JIS/GB/BS
Steel Grade
AISI 4140/ASTM 4140/DIN 1.7225 /NF 40CD4 /JIS SCM440 /GB 42CrMo /BS 708M40
Chemical Compositions(%)
C: 0.38-0.45   Si: 0.17-0.37  Mn: 0.50-0.80  P≤0.035  S ≤0.035 Â
Cr:Â 0.90-1.20Â Â Mo:Â 0.15-0.25
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
Surface treatment
Black/Peeling/Polishing/Machined
Technique
Cold/Hot rolled, Cold-Drawn or Hot Forged
Heat Treatment
Annealed; Quenched; Tempered
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
Metallographic structure
Tempered sorbite
Test
SGS/UT100%/Elements Testing
Certificate
SGS/ISO/Mill Certificate
Delivery status
Delivered in heat-treated (normalized, annealed or high temperature tempered) or unheated state
Skype/Whatsapp/Wechat
+86-18269260283
Company website
http://www.songshunsteel.com/
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.​
songshunmoldsteel41404340
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