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Model Number: hot rolled round bar -2
Key Specifications/Special Features:
Alloy steel round bar 41401.Grade: AISI 4140, DIN 1.7225/42CrMo4, JIS SCM440, GB 42CrMo2.Size:dia 10-320mm, length: as you request3.Chemical composition: (%)C Si Mn P S Cr Ni Mo0.42 0.30 0.60 ≤0.025 ≤0.025 1.00 ≤ 0.25 0.20
4.Factory state: Hot rolled. Annealed hardness≤229. Black surface.
5.Characteristic:Thissteelhasgoodworkability,machining deformationtinyanti-fatigueperformanceisquitegood, isinhardenability steel.4140after heat treatment,goodstrength and goodmechanical properties,good technology,andhigh-yield.
6.Application:Can also be usedforthemanufacturing requirementscompared35CrMosteelhigher strengthanda largercross-sectionforgingsquenched,suchasthetractionwitha large gear,thetransmission gearsoftheturbocharger, the rear axle,by the loadgreatlyrod andcolletbelow 2000mdeep oildrill pipe jointsandfishing tools,and can beusedtomoldbender.
7.Process flow: Electric arc furnace melting→Refining furnace → Vacuum treatment furnace → Cast ingot → Steel ingot anneal → Heating → High-speed forging, refining forging → Anneal, retarded cooling,air cooling → Quenching and tempering tretment → Finishing operation → Text → Finished products
8.MECANICAL PROPERTIES Heat Treated Condition
Yield strength ( Rp0.2): 930(max)
Tensile (Rm): 1088(max)
Elongation (A5) %: 13(min)
Charpy Impact J: 42(min)
Hardness HB:248 - 302 HB
4.Factory state: Hot rolled. Annealed hardness≤229. Black surface.
5.Characteristic:Thissteelhasgoodworkability,machining deformationtinyanti-fatigueperformanceisquitegood, isinhardenability steel.4140after heat treatment,goodstrength and goodmechanical properties,good technology,andhigh-yield.
6.Application:Can also be usedforthemanufacturing requirementscompared35CrMosteelhigher strengthanda largercross-sectionforgingsquenched,suchasthetractionwitha large gear,thetransmission gearsoftheturbocharger, the rear axle,by the loadgreatlyrod andcolletbelow 2000mdeep oildrill pipe jointsandfishing tools,and can beusedtomoldbender.
7.Process flow: Electric arc furnace melting→Refining furnace → Vacuum treatment furnace → Cast ingot → Steel ingot anneal → Heating → High-speed forging, refining forging → Anneal, retarded cooling,air cooling → Quenching and tempering tretment → Finishing operation → Text → Finished products
8.MECANICAL PROPERTIES Heat Treated Condition
Yield strength ( Rp0.2): 930(max)
Tensile (Rm): 1088(max)
Elongation (A5) %: 13(min)
Charpy Impact J: 42(min)
Hardness HB:248 - 302 HB
Shipping Information:
- FOB Port: China (Mainland)
- Lead Time: 5 - 45 days
Main Export Markets:
- Asia
- Australasia
- Central/South America
- Eastern Europe
- Mid East/Africa
- North America