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ASTM A519 4140 Seamless steel pipe steel plate

ASTM 4140 steel has high fatigue strength, abrasion and impact resistance, toughness, and torsional strength.

ASTM A519 4140 steel Chemical Composition (%):

Grade

C

Mn

P≤

S≤

Si

Cr

Mo

4140

0.38-0.43

0.75-1.00

0.040

0.050

0.15-0.35

0.80-1.10

0.15-0.25

ASTM A519 4140 steel Mechanical Properties:

Grade

Condition

MPa Tenslle Point

Yield Point

Elongation

4140

SR

≥689

≥855

≥10%

A

≥414

≥552

≥25%

N

≥621

≥855

≥20%

4140 Seamless Mechanical Tubing are medium carbon alloy grades, which are widely used for many general purpose applications that require high tensile strength and toughness.  ASTM A519 4140 steel is used for mechanical and pressure use,and also for transporting steam, water, gas and etc.

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