AISI 4140/ JIS SCM440/ DIN 42CrMo4 HOT ROLLED ALLOY STEEL BAR

AISI 4140/ JIS SCM440/ DIN 42CrMo4 HOT ROLLED ALLOY STEEL BAR 4140/ SCM440/ 42CrMo4(1.7225) alloy steel bar is a medium carbon, chromium-molybdenum, through-hardening alloy steel that has a good hardenability with high strength and toughness as well as good fatigue and impact resistance after heat treating. Similar Grades Standard Grade Chemical composition (%) C Si Mn Cr Mo P S GB 42CrMo 0.38-0.45 0.17-0.37 0.50-0.80 0.90-1.20 0.15-0.25 ≤0.035 ≤0.035 AISI 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 JIS SCM440 0.38-0.43 0.15-0.35 0.60-0.90 0.90-1.20 0.15-0.30 ≤0.030 ≤0.030 DIN 42CrMo4/ 1.7225 0.38-0.45 ≤0.40 0.60-0.90 0.90-1.20 0.15-0.30 ≤0.025 ≤0.035 Available Size Hot rolled round bar: dia16mm-dia310mm Hot rolled flat bar: thickness5mm-30mm, width50mm-130mm Hot rolled square bar: 16mm*16mm-100mm*100mm Available Heat Treatment Annealing/ Normalizing/ Hardening/ Tempering/ Quenching Hot working temperature ℃: 1050-850 Annealing temperature ℃: 680-720 Normalizing temperature ℃: 840-880 Quenching temperature ℃: 820-850 water, 830-860 oil Tempering temperature ℃: 540-680 Characteristics good overall combinations of strength, toughness, wear resistance and fatigue strength. Application Typical applications for 4140 HR bar are sprockets, bolts, chain pins, drill collars, universal joints, highly stressed parts or parts subject to severe wear. Delivery Condition Hot rolled, black surface/brigth surface with customers’ required heat treatment.

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jianhui metals group
Alabama, China | Rating

AISI 4140/ JIS SCM440/ DIN 42CrMo4 HOT ROLLED ALLOY STEEL BAR