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ASTM A53
ASTM A106
API 5L
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ASTM A350
ASTM A105
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A350 LF2
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ASTM A860
 A193 B7
A194 2H
A240 GR.410
A312 S31726

A194 2H 

ASTM A194 Standard Specification for Carbon Steel, Alloy Steel, and Stainless Steel Nuts for Bolts for High Pressure or High Temperature Service, or Both

 

Grade Symbol: 2H

Material: Carbon

 

Chemical Requirements (Composition, %)

C: ≥0.40

Mn: 1.00

P: 0.040

S: 0.050

Si: 0.40

 

Hardness Requirements

Type

Brinell Hardness

Rockwell Hardness

to 1-1/2 in. or M36, incl

248 to 327

24 to 35

over 1-1/2 in. or M36

212 to 327

35 max

95 min

 

Minimum Tempering Temperature, [°C] 455


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