buy AS 4340 forgings condition U for the Australian market

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Quality AS 4340 forgings in condition U at good price are available from us. We are AS 4340 alloy steel forgings manufacturer in China.

Our AS 4340 forgings in condition U are the high hardenability high tensile steel forgings with 1.8% nickel – chromium – molybdenum. The tensile range of our AS 4340 forgings in condition U is 930-1080 MPa. They are used in most industry sectors for applications requiring higher tensile/yield strength than 4140 can provide. Typical applications are: heavy duty shafts, gears, axles, spindles, couplings, pins etc. With excellent performance, our AS 4340 forgings in condition U are widely used in various fields, such as mining industry, mining machinery, heavy machinery, cement industry, metallurgical industry, etc.

AS 4340 forgings in condition U
AS 4340 forgings in condition U

AS 4340 forgings chemical composition sheet:

Steel Grade C Si Mn P S Cr Mo Ni
AS 4340
0.37-0.44
0.10-0.35
0.55-0.90
≤0.04
≤0.040
0.65-0.95
0.20-0.35
1.55-2.00

AS 4340 forgings in condition U mechanical properties:

ITEM PARAMETERS
Tensile Strength (MPa)
930-1080
0.2% Proof Stress (MPa):
min. 740
Elongation on 5.65√S0 (%):
min. 12
Charpy Impact (J):
min.42
Brinell Hardness (HB):
269-331

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