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AISI 4140/ JIS SCM440/ DIN 42CrMo4 COLD DRAWN STEEL FLAT BAR

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Cold drawn flat bar:

thickness5mm-80mm

width10mm-220mm

Payment terms L/C, T/T

Transport: By bulk or Containers

Delivery: 30 Days according to your quantity

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AISI 4140/ JIS SCM440/ DIN 42CrMo4 COLD DRAWN STEEL FLAT 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.

AISI 4140/ JIS SCM440/ DIN 42CrMo4 COLD DRAWN STEEL FLAT BAR 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

 

AISI 4140/ JIS SCM440/ DIN 42CrMo4 COLD DRAWN STEEL FLAT BAR Available Size

Cold drawn flat bar: thickness5mm-80mm, width10mm-220mm

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

 

AISI 4140/ JIS SCM440/ DIN 42CrMo4 COLD DRAWN STEEL FLAT BAR Characteristics

good overall combinations of strength, toughness, wear resistance and fatigue strength.

AISI 4140/ JIS SCM440/ DIN 42CrMo4 COLD DRAWN STEEL FLAT BAR 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.

AISI 4140/ JIS SCM440/ DIN 42CrMo4 COLD DRAWN STEEL FLAT BAR Delivery Condition

Hot rolled or forged, Peeled or black surface, annealed or QT