Follow us:-

40CrMn forged steel round bar

  • 83 Views
  • 31-May-2024

KUNFENG offer  and 40CrMn hot rolled round bar. 40CrMn 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 40CrMn 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.

40CrMn Chemical analysis -% by mass*


Grade

C

Si

Mn

P

S

Cr

Ni

Cu

max

max

max

max.

max.

max

max

max

40CrMn

0.37-0.45

0.17-0.37

0.90-1.20

0.035

0.035

0.90-1.20

0.030

0.030

40CrMn Merchanical Propertites

Grade

Tensile Strength (Mpa)

Yield Strength (Mpa)

Elongation in 100-150 mm(%)

Impact(Akv(J)

Hardness

40CrMn

≥980(100)

≥835(85)

≥9

≥47

≤229HB

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

steel round bar

KUNFENG can offer 40CrMn forged and hot rolled round bar in 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.

Related Post

ASTM A517 GRADE S steel plate/steel structure

ASTM A517 GRADE S steel work/steel structure/steel machining parts is made by steel plate, in Shanghai KUNFENG’s processing center, we can do all kinds of steel processing work, cover welding, cutting, milling, shot blasting, etc.

GB/T 9711-2011 L625M/X90M PSL2 LSAW pipeline

L625M X90M LSAW pipeline is a carbon structural steel which is under GB/T 9711-2011 standard,L625M/X90M PSL2 LSAW pipeline is mainly used for conveying water, gas, air, oil and heating hot water or steam, generally low-pressure fluid,it can be tested and tested, chemical analysis, tensile test, surface inspection, hydraulic test, impact test.

316 Stainless Steel Strip

Chemical Composition

ISO3183 L485Q / X70Q PSL2 LSAW pipeline

ISO3183 L485Q/X70Q PSL2 LSAW pipeline belongs to the petroleum, the natural gas steel pipe, oneself chemical performance is good, ISO3183 L485Q/X70Q PSL2 LSAW pipeline carbon content above 0.18, the yield strength and the tensile strength are good, use widely in the production life.