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40CrNiMoA Alloy Steel Round Bar Custom Cutting Any Length Hot Rolled And Forged Round Bars

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40CrNiMoA Alloy Steel Round Bar Custom Cutting Any Length Hot Rolled And Forged Round Bars

Name: 40CrNiMoA Alloy Steel Round Bar Custom Cutting Any Length Hot Rolled And Forged Round Bars
Brand: DELTA
Price: 600 USD

Quality 40CrNiMoA Alloy Steel Round Bar Custom Cutting Any Length Hot Rolled And Forged Round Bars for sale

Brand Name : DELTA

Model Number : 40CrNiMoA

Certification : ISO

Place of Origin : China

MOQ : 1 Ton

Price : 600-885USD/Ton

Payment Terms : L/C, T/T, Western Union

Supply Ability : 20Ton per week

Delivery Time : 5 - 12 days based on the quantity

Packaging Details : standard packing for export

Products Name : Alloy Steel Round Bar

Diameter : 10 - 350mm

Length : 6m

Tech : Hot rolled

Service : Cutting

MOQ : 1 Ton

Loading Port : Shanghai Port

Standard : ASTM EN GB

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40CrNiMoA Alloy Steel Round Bar Custom Cutting Any Length Hot Rolled and Forged Round Bars

Products Specification

Products Name	40CrNiMoASteel Round Bar
Diameter	10 - 300mm
Length	6m or custom cutting any length as request
Type	Hot Rolled
Brand	BAOSTEEL DELTA DONGBEI HUAXI SHAGANG.etc
MOQ	1 Ton
Loading Port	Shanghai Port
Packing	packing by steel wire rope
Deliver time	5 - 7 days for stock materials
Other Grade	Q195,Q235,10#,20#,35#,45#,Q215,Q345,12Cr1Mov, 15CrMo,304,316,20Cr,40Cr,20CrMo,35CrMo,42CrMo, 40CrNiMo,GCr15,65Mn,50Mn,50Cr,3Cr2W8V,20CrMnTi,5CrMnMo
Standard	ASTM GB EN DIN
Application	Structure and Industrial

40CrNiMoA Steel

40CrNiMoA steel is a Chinese alloy steel, has high strength, toughness and good hardenability, and has anti-overheating stability, but has high white point sensitivity, temper brittleness and poor weldability. Preheating is required before welding, and stress relief treatment is required after welding.

Properties and Applications of 40CrNiMoA Alloy Steel

40CrNiMoA steel is used after quenching and tempering, and is used to manufacture important parts requiring good plasticity, high strength and large size. For example, heavy-duty shafts in heavy-duty machines, steam turbine shafts with diameters greater than 250 mm, blades, transmissions, fasteners, crankshafts, gears, etc., can also be used for rotor shafts and blades operating at temperatures exceeding 400 °C.

40CrNiMo, 40CrNiMoA Steel Chemical Composition

Standards	GB	AISI	JIS
Material	40CrNiMoA	4340	SNCM439(SNCM8)
C	0.37~0.44	0.38~0.43	0.36~0.43
Si	0.17~0.37	0.15~0.35	0.15~0.35
Mn	0.50~0.80	0.60~0.80	0.60~0.90
P	≤0.025	≤0.035	≤0.030
S	≤0.025	≤0.040	≤0.030
Cr	0.60~0.90	0.70~0.90	0.60~1.00
Ni	1.25~1.65	1.65~2.00	1.60~2.00
Mo	0.15~0.25	0.20~0.30	0.15~0.30

40CrNiMoA Alloy Steel Mechanical Properties

Yield strength: ≥ 835 MPa
Tensile strength: ≥ 980 MPa
Elongation: ≥12%
Rate of reduction in area: ≥55%
Impact absorbing energy: ≥ 78 J
Material Brinell Hardness: ≤ 269 (Annealed or high temperature tempered steel rod)
Sample size: 25mm

Heat treatment specification

First quenching heating temperature: 850 °C (Quenchant– oil)
Tempering heating temperature: 600 °C (Quenchant– water, oil)

Equal Grade of 40CrNiMoA Alloy

Germany: 34CrNiMo6
United States: 4340
Japan: SNCM439 (SNCM8)
United Kingdom: 817M40
Italy: 40NiCrMo7

40CrNiMoA Alloy Steel Round Bar Custom Cutting Any Length Hot Rolled And Forged Round Bars

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