ASTM A194 Grades

ASTM A194 Grades

[ AREAS-961 ]

The ASTM A194 Grade 2H specification covers carbon, alloy, and stainless steel nuts intended for use in high-pressure and/or high-temperature service. Unless otherwise specified, the American National Standard Heavy Hex Series (ANSI B 18.2.2) shall be used. 

ASTM A194 Grades
ASTM A194 Grade 2H
2HCarbon steel Hex Nut, Heavy hex nut
ASTM A194 Grade 2H Chemical properties

Property class 

Chemical composition

C.

Mn.

Si.

P.

S.

Cr.

Ni.

Mo.

V.

Ti.

2H

0.40 min

1.00

0.40

0.040

0.050

-

-

-

-

-

ASTM A194 Grade 2H Hardness properties Inch Product

Class

Diameter, [mm]

Brinell

Hardness

Rockwell Hardness

C Scale

B Scale

2H

To 1.1/2”

248-327

24-35

-

over 1.1/2”

212-327

35 max

95 min


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