A ASTM reference material specification of fittings, flanges, unions and cast and forged valves can be found in the table below:
ASTM Grades |
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Material |
Pipes |
Fittings |
Flanges |
Valves |
Bolts & Nuts |
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Carbon Steel |
A106 Gr A |
A234 Gr WPA |
A105 Gr A |
A216 Gr WCB |
A193 Gr B7 |
A106 Gr B |
A234 Gr WPB |
A105 Gr B |
A216 Gr WCB |
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A106 Gr C |
A234 Gr WPC |
A105 Gr C |
A216 Gr WCB |
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Carbon Steel |
A335 Gr P1 |
A234 Gr WP1 |
A182 Gr F1 |
A217 Gr WC1 |
A193 Gr B7 |
A335 Gr P11 |
A234 Gr WP11 |
A182 Gr F11 |
A217 Gr WC6 |
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A335 Gr P12 |
A234 Gr WP12 |
A182 Gr F12 |
A217 Gr WC6 |
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A335 Gr P22 |
A234 Gr WP22 |
A182 Gr F22 |
A217 Gr WC9 |
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A335 Gr P5 |
A234 Gr WP5 |
A182 Gr F5 |
A217 Gr C5 |
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A335 Gr P9 |
A234 Gr WP9 |
A182 Gr F9 |
A217 Gr C12 |
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Carbon Steel |
A333 Gr 5 |
A420 Gr WPL6 |
A350 Gr LF2 |
A352 Gr LCB |
A320 Gr L7 |
A333 Gr 3 |
A420 Gr WPL3 |
A350 Gr LF3 |
A352 Gr LC3 |
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Austenitic |
A312 Gr TP304 |
A403 Gr WP304 |
A182 Gr F304 |
A182 Gr F304 |
A193 Gr B8 |
A312 Gr TP316 |
A403 Gr WP316 |
A182 Gr F316 |
A182 Gr F316 |
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A312 Gr TP321 |
A403 Gr WP321 |
A182 Gr F321 |
A182 Gr F321 |
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A312 Gr TP347 |
A403 Gr WP347 |
A182 Gr F347 |
A182 Gr F347 |
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