AISI 4140 42CrMo4 1.7225 Scm440 Hot Forged Steel Bars / forged high strength 4140 alloy steel
AISI / SAE 4140 Forged Steel Round Bars
Forged Steel Square Bars
Forged Ring / Other Forged Parts
1)Standard
| Standard |
AISI / SAE 4140 |
| WERKSTOFF NR. |
41CrMo4, 42CrMo4, 42CrMoS4, 43CrMo4 |
| BS 970 |
708M40, 708A42, 709M40, En19, En19C |
| UNI |
41CrMo4, 38CrMo4 (KB), G40 CrMo4, 42CrMo4 |
| JIS |
SCM 440, SCM 440H, SNB 7, SCM 4M, SCM 4 |
| EN name |
42CrMo4 |
| EN # |
1.7223, 1.7225, 1.7227, 1.3563 |
2).4140 steel Chemical composition
| ASTM A29/29M |
C |
Si |
Mn |
Cr |
Mo |
P |
S |
| 4140 |
0.38~0.43 |
0.15~0.35 |
0.75~1.00 |
0.80~1.10 |
0.15~0.25 |
≤0.035 |
≤0.040 |
| DIN WN-r |
C |
Si |
Mn |
Cr |
Mo |
P |
S |
| 1.7225 |
0.38~0.45 |
≤0.40 |
0.60~0.90 |
0.90~1.20 |
0.15~0.30 |
≤0.035 |
≤0.035 |
| GB/T |
C |
Si |
Mn |
Cr |
Mo |
P |
S |
| 42CrMo |
0.38~0.45 |
0.17~0.37 |
0.50~0.80 |
0.90~1.20 |
0.15~0.25 |
≤0.030 |
≤0.030 |
| BS |
C |
Si |
Mn |
Cr |
Mo |
P |
S |
| 708M40 |
0.36~0.44 |
0.10~0.35 |
0.70~1.00 |
0.90~1.20 |
0.15~0.25 |
≤0.035 |
≤0.035 |
| JIS |
C |
Si |
Mn |
Cr |
Mo |
P |
S |
| SCM440 |
0.38~0.43 |
0.15~0.35 |
0.60~0.85 |
0.90~1.20 |
0.15~0.30 |
≤0.030 |
≤0.030 |
3)Size:Φ85mm~1200mm Rectangular steel 150×150-800×800
Length: 3000mm ~12000mm
4)Inspecting: UTS according toSEP1921 C/c, D/d, E/e, A388 or GB/T 6402
5).Delivery Condition:
Hot forged +Normalized+rough turned
Q/T:Quench+ Temper
Annealing
6)Grain size: 6-8
7)Manufacture:EAF+LF+VD(Annealed,normalized,Quenched+Tempered,peeled,rough turned).
8) About our factory:
Our main products include Forged Steel Round Bar from Sizes 85mm to 1100mm, Forged Steel Square Bar from Sizes 150×150 to 800×800mm with various grade ;The largest production steel ingot 15T, mainly forged alloy steel, carbon steel and other materials. The annual output of forged round can reach 60,000 tons. The products are widely used and can be supplied to users in metallurgy, chemical, hydraulic, port and marine machinery The main equipment includes a 2000-ton hydraulic press, a 3-ton electro-hydraulic hammer, a 2.5-meter ring rolling machine, and is equipped with large and small traveling machines, metalworking lathes, and multiple large and small sawing machines. The company now has more than 100 sets of production equipment from a whole set of processes from blanking, heating, forging to heat treatment and machining.
9).Main Grade we can supply for forged steel bars
| Steel series |
Representative steel type |
| Carbon Steel series |
AISI 1020,1045,A36,S355JR,S355JO |
| Petroleum machinery series |
AISI4150,AISI4140,AISI4130, |
| 30CrMo,4145H |
| Tool mold series |
1.2714,5CrMnMo,5CrNiMoV, |
| 1.2738,1.2311,1.2312 |
| Bearing series |
52100,GCr15,SUJ2 |
| Marine series |
4140,42CrMo,SCM440, |
| 709M40 |
| Car series |
SAE8620,20CrNiMo, |
| SNCM220 |
| Heavy-duty transmission series |
40CrNiMo,SNCM439, |
| SAE4340,EN24 |
| Mining machinery series |
655M13,826M40, |
| 25CrMo |
| Wind power gear series |
18CrNiMo7-6, 17CrNiMo6, 1.6582,1.6587,SAE8620 |
| Wind power spindle series |
34CrNiMo6,817M40 |
| Nitriding series |
20MnCr5,38CrMoAl, |
| 31CrMoV9 |
| Pressure vessel series |
15CrMo,13CrMo4-4 |
| Metallurgical roll series |
21CrMoV511,W1.7225, |
| EN19,709M40 |
Audited Supplier 
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