Valve body Bolt/Nut materials
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Valve body Bolt/Nut materials
Body Materials Temperature Degress F. Bolts Material Specification Nuts
Carbon Steel (Grade WCB) -20 to 800 ASTM A193 B7 ASTM A 194 Gr 2H
Carbon Steel (Grade LCB) -50 to 650 ASTM A320 L7 ASTM A 194 Gr 4
Carbon Moly (Grade LCB) -20 to 850 ASTM A193 B7 ASTM A 194 Gr 2H
1 1/4Cr - 1/2Mo (Grade WC6) -20 to 1000 ASTM A193 B7 ASTM A 194 Gr 2H
2 1/4Cr-1Mo (Grade WC9) -20 to 1000 ASTM A193 B7 ASTM A 194 Gr 2H
1000 to 1050 ASTM A193 B7 ASTM A 194 Gr 2H
5Cr-1/2Mo (Grade C5) -20 to 1000 ASTM A193 B7 ASTM A 194 Gr 2H
1000 to 1100 ASTM A193 B7 ASTM A 194 Gr 2H
9Cr-1Mo (Grade C12) -20 to 1000 ASTM A193 B7 ASTM A 194 Gr 8H
1000 to 1100 ASTM A193 B7 ASTM A 194 Gr 2H
Type304 (Grade CF8) -425 to 100 ASTM A320 B8 ASTM A 194 Gr 8
100 to 1500 ASTM A193 B8 ASTM A 194 Gr 8
Type316 (Grade CF8M) -425 to 100 ASTM A320 B8 ASTM A 194 Gr 8
100 to 1500 ASTM A193 B8M ASTM A 194 Gr 8M
3 1/2Ni (Grade LC3) -150 to -50

ASTM A193 Gr B7
With Charpy Test or 8M

ASTM A 194 Gr 8
-50 to 650 ASTM A193 Gr B7 ASTM A 194 Gr 2H