42CrMo4 is a heat treatable steel which contains at least 0.9%Cr,0.15%Mo as strengthening elements.After quenched and tempered, It obtains high strength, good low-temperature impact toughness with a typical tensile strength of 900 -1200 N/mm2.42CrMo4 steel has better performance than 34CrMo4 steel due to the higher carbon and chromium content.Similar to AISI 4140,only a little difference in Mn,Cr content.This material also has good machinability,good wear-resistance,but the temper brittleness is not obvious,and poor in weldability.
| Item | Alloy steel bar,alloy steel rod,steel bar,steel rod, |
| Standard | ASTM,AISI,SUS,GB,JIS,DIN |
| Material |
10#,15#,20#,A105,1010,1015,1020,1030,S25C,S35V,1035,1050,1060,20Mn, 25Mn,30Mn,40Mn,50Mn,130,20Mn2,30Mn2,35Mn2,15Cr,15CrMo,42CrMo, 42CrMo4,34CrMo4,30CrMo,12CrMo,40Cr,35CrMo,C45,1045,4130,3140,4140, 4145,4137,5115,etc |
|
Dimension |
Round bar:Diameter:2-1000mm,Length:1-12m,or as required |
| Flat bar:thickness:0.3-500mm,Width:2-3000mm,Length:1-12m,or as required | |
| Square bar:Diameter:2*2-800*800mm,Length:1-12m | |
| Angle bar:width:10*10-500*500mm,Thickness:2-150mm,Length:1-12m | |
| Hexagonal bar:Diameter:4-800mm,Length:1-12m,or as required | |
| Surface | polished,bright,black,coated,2b,ba,mirror,NO.4,8K |
| Treatment | Hot rolled,cold drawn,Forged |
| Package | Standard export seaworthy or as customers' requirements |
| Application |
Products are widely used in automobile, petroleum, chemical, coal, electric power, machinery manufacturing, railway transportation and other industries as well as aerospace, aviation, navigation, etc. Especially in the railway, wind power, nuclear power, the power station boiler, automobile, engineering machinery, heavy and other key industries |
| Export |
Ireland,Singapore,Indonesia,Ukraine,Saudi Arabia,Spain,Canada,USA,Brazil,Thailand,Iraq,Russia, Holland,Turkey,Kuwait,Korea,Argentina,India,Egypt,Oman,Malaysia,Peru, Vietnam,Mexico,etc |
| Surface Finish | Black-Forged | Black-Rolled | Turned | Grinding | Polished | Peeled | Cold Drawn |
| Tolerance | (0,+5mm) | (0,+1mm) | (0,+3mm) | Best h9 | Best h11 | Best H11 | Best H11 |
Chemical Composition
| Grade | C | Si | Mn | Cr | Mo | P | S |
| 42CrMo4/1.7225 | 0.38-0.45 | ≤ 0.4 | 0.6-0.9 | 0.9-1.2 | 0.15-0.3 | ≤ 0.025 | ≤ 0.035 |
| 42CrMoS4/1.7227 | 0.38-0.45 | ≤ 0.4 | 0.6-0.9 | 0.9-1.2 | 0.15-0.3 | ≤ 0.025 | 0.02-0.04 |
Relevant Standards
| USA | UK | China | Japan | France | Russia |
| 4140 | EN19/708M40 | 42CrMo | SCM440 | 42CD4 | 42HM |
Mechanical Property
| Diameter d mm | ≤ 16 | 16-40 | 40-100 | 100-160 | 160-250 |
| Thickness t mm | < 8 | 8-20 | 20-60 | 60-100 | 100-160 |
| Yield Strength Mpa | ≥900 | ≥750 | ≥650 | ≥550 | ≥500 |
| Tensile Strength Mpa | 1100-1300 | 1000-1200 | 900-1100 | 800-950 | 750-900 |
| Elongation, % | ≥10 | ≥11 | ≥12 | ≥13 | ≥14 |
| Reduction of area ,% | ≥40 | ≥45 | ≥50 | ≥50 | ≥55 |
| impact | ≥30 | ≥35 | ≥35 | ≥35 | ≥35 |
FAQ
Q: Are you trading company or manufacturer ?
A: We are trading and manufacturer combination.
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A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
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A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
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A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.
