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37CrNi3 forged steel round bar

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  • 28-May-2024

KUNFENG offer  and 37CrNi3  hot rolled round bar. 37CrNi3 with high toughness, high hardenability, oil cooling can be completely Φ 150 mm parts hardening. Creep resistance is stability when at 450 °. Impact toughness in low-temperature of 37CrNi3 is good. Within the range of 450 ~ 550 ℃ tempering with the second category of temper brittleness, forming points tend to be larger. As good hardenability, normalizing and high temperature tempering must be used to reduce the hardness, improving cutting processability. It is common used in quenched and tempered condition.

steel round bar

37CrNi3  Chemical analysis -% by mass*

and 37CrNi3  hot rolled round bar Chemical Composition:


Grade

C

Si

Mn

P

S

Cr

Ni

max

max

max

max.

max.

max

max

37CrNi3

0.34-0.41

0.17-0.37

0.30-0.60

0.035

0.035

1.2-1.6

3.0-3.5

37CrNi3  Merchanical Propertites

Grade

Tensile Strength (Mpa)

Yield Strength (Mpa)

Elongation in 100-150 mm(%)

percentage reduction of area

impact strength

Hardness

37CrNi3  

≥1130

≥980

≥10

≥50

≥47

≤269HB

Standard: DIN 7527-6,EN 10204, EN 10228-3,EN 10250,N10083,SEW 550
Delivery Condition: Hot forged +Normalized+ Rough turned
Q/T:Quench+ Temper Annealing
Steelmaking Process: electric furnace + LF refining furnace + argon protection casting + VD vacuum degassing furnace ingot (bottom gating)
Diameter: 5mm-1200mm ,the forged round bar is from 80mm-1200mm:
Length: 1000-12000mm
Inspecting: SEP1921 CLASS C/C,D/D,E/E
Min qty: 1pcs
Tolerance for forged round bar:  OD: 0/+3.0mm  Length: 0/+20.0mm   Straightness: 3mm/1000mm

forged steel round bar

KUNFENG can offer 37CrNi3 forged and hot rolled round barin carbon, alloy, stainless steel material, Our Company through quality, environment, occupational health and safety management system, etc. Products have passed the ISO9001:2000 quality management system certification, China CCS, South Korea KR, Italy RINA, Japan NK, France BV, the United States ABS, Russia RS, Lloyd's LR, Germany Lloyd's GL classification society certification.

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