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SAE 4340 Forging Diameter 200mm, Length 800mm Black (Hot Rolled) Normalised - 1.6 MT

Listing ref: sae-4340-forging-200mm-mex32333
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Material Details
Grade4340
StandardSAE
FormForging
Quantity1.600 MT
SurfaceBlack (Hot Rolled)
DocumentationFully certified
StatusExpired
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Learn about SAE 4340
SAE 4340 Specifications
SAE 4340 is a Alloy Steel grade - Nickel chrome molybdenum steel, very high strength. Typical applications: Aircraft parts, heavy duty gears, crankshafts. Commonly traded in Forging form on M-EX.
Equivalent / Similar Grades
Grade Standard Region
34CrNiMo6 DIN/EN Europe
EN24 BS970 UK
SNCM439 JIS Japan
Chemical Composition (%)
C Mn Cr Mo Ni Si
0.38–0.43 0.60–0.80 0.70–0.90 0.20–0.30 1.65–2.00 0.15–0.35
Mechanical Properties
condition Quenched & Tempered
Tensile Strength 1000–1200 MPa
Yield Strength ≥830 MPa
Elongation ≥12%
Hardness 285–341 HB