40CrNi steel

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11-May-2024

40CrNi is a alloy quenched and tempered steel. 40CrNi with high strength, high toughness and high hardenability.In the condition of quenched and tempered, comprehensive mechanical performance of 40CrNi is good, good low-temperature impact toughness. 40CrNi a tendency to temper brittleness, water-cooled are prone to crack. 40CrNi cutting workability is good, but the weldability is poor.In the use of quenched and tempered condition.

40CrNi Chemical analysis -% by mass*

Grade	C	Si	Mn	P	S	Cr	Ni
Grade	max	max	max	max.	max.	max	max
40CrNi	0.37-0.44	0.17-0.37	0.50-0.80	0.035	0.035	0.45-0.75	1.0-1.40

40CrNi Merchanical Propertites

Grade	Tensile Strength (Mpa)	Yield Strength (Mpa)	Elongation in 100-150 mm(%)	percentage reduction of area	Impact(Akv(J)	Hardness
40CrNi	≥980	≥785	≥10	≥45	≥55	≤241HB

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

KUNFENG can offer 40CrNi 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.

Tags: 40CrMoV, 40CrMnMo, ASTM 8615