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ASTM A53
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ASTM A312
ASTM A350
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A350 LF2
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 A193 B7
A194 2H
A240 GR.410
A312 S31726

A312 S31726 

ASTM A 312 Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes

 

UNS Designation S31726

 

Chemical Requirements: Composition, %, max

C: 0.03

Mn:2.00

P: ≤0.040 *

S: ≤0.030

Si: 1.00

Cr: 17.0-20.0

Ni:14.5-17.5

Mo: 4.0-5.0

N: 0.10-0.20

Cu: 0.75

*For welded pipe, the phosphorus maximum shall be 0.045 %.

 

Heat Treating Temperature: 1040 °C

 

Tensile Requirements

Tensile Strength, min.: 550MPa

Yield Strength, min.: 240MPa

Elongation in 2 in. or 50 mm (or 4D), min, %:

Longitudinal 35

Transverse 25


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