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1. What is the ASTM code for the following?
A. Pipes :-
I. Carbon Steel II. Alloy Steel III. Stainless Steel IV. Nickel Steel.
B. Tubes:-
I. Carbon Steel II. Alloy Steel III. Stainless Steel IV. Nickel Steel.
C. Wrought Iron Fittings:-
I. Carbon Steel II. Alloy Steel III. Stainless Steel IV. Nickel Steel.
D. Forged Fittings:-
I. Carbon Steel II. Alloy Steel III. Stainless Steel IV. Nickel Steel.
E. Cast Fittings:-
I. Carbon Steel II. Alloy Steel III. Stainless Steel IV. Nickel Steel.
F. Plates:-
I. Carbon Steel II. Alloy Steel III. Stainless Steel IV. Nickel Steel.
Answer:-
A. Pipes:-
I. Carbon Steel :- ASTM A53 Gr. A/B, ASTM A106 Gr. A/B/C, ASTM A333 Gr.1/Gr.6
II. Alloy Steel :- ASTM A335 Gr.P1/P2/P5/P7/P9/P11/P12/P22.
III. Stainless Steel :- ASTMA312TP304/TP304L/TP304H/TP308/TP310/TP316/TP316L/TP316H/
TP317/TP321/TP321H/TP347/TP347H/TP348/TP348H.
IV. Nickel Steel :- ASTM A333Gr.3/ Gr.8.
B. Tubes:-
I. Carbon Steel :- ASTM A178/179/192, ASTM A334 Gr.1/6.
II. Alloy Steel :- ASTM A161T1, ASTM A213T1/T2/T5/T7/T9/T11/T12/T22.
III. Stainless Steel :- ASTM A213 TP304/TP304L/TP304H/TP310/TP316/TP316L/TP316H/
TP317/TP321/TP321H/TP347/TP347H/TP348/TP348H,ASTM A608 HK40.
IV. Nickel Steel :- ASTM A334Gr.3/Gr.8
C. Wrought Iron fittings :-
I. Carbon Steel :- ASTM A234Gr.WPA/B, ASTM A420 Gr.WPL6.
II. Alloy Steel :- ASTM A234 WP1/WP5/WP7/WP9/WP11/WP12/WP22.
III. Stainless Steel :- ASTM A403 WP304/WP304L/WP304H/WP309/WP310/WP316/WP316L/WP316H/ WP317/WP321/WP321H/WP347/WP347H/WP348.
I V. Nickel Steel :- ASTM A420WPL6/WPL8.

D. Forged Fittings :-
I. Carbon Steel :- ASTM A181. ASTM A105, ASTM A350 LF1/2.
II. Alloy Steel :- ASTM A182F1/F2/F5/F7/F9/F11/F12/F22.
III. Stainless Steel :- ASTM A182F6/F304/F304L/F304H/F310/F316/F316L/F316H/F321/
F321H/F347/F347H/F348.
IV. Nickel Steel :- ASTM A350 LF3, ASTM A522.
E. Cast Fittings: –
I. Carbon Steel :- ASTM A216, ASTM A352 LCB/C.
II. Alloy Steel :- ASTM A217 WC1/WC6/WC9/C5/C12.
III. Stainless Steel :- ASTM A217 CA15, ASTM A296 CA15, ASTM A351 CF8/CF3/CH20/
CK20/CF 8M/CF 3M/CF 8C/HK40.
IV. Nickel Steel :- ASTM A352LC3.
E. Plates:-
I. Carbon Steel :- ASTM A285, ASTM A515, ASTM A516.
II. Alloy Steel :- ASTM A387 Gr.2/Gr.5/Gr.7/Gr.9/Gr.11/Gr.12/Gr.22.
III. Stainless Steel :- ASTM A240 TP410/TP405/TP430/TP304/TP304L/TP309/TP310S/
TP316/TP316L/TP317/TP321/TP347/TP348
IV. Nickel Steel :- ASTM A203 Gr.D/Gr.E, ASTM A353.
2. What is the basic difference between Pipe specification A106 Gr.A / Gr.B/ Gr.C.?
Difference is due to the carbon content.
% of carbon content in :-
I. ASTM A106 Gr. A – 0.25 %
II. ASTM A106 Gr. B – 0.30 %
II ASTM A106 Gr. C – 0.35 %.
3. What is the difference between pipe specification ASTM A312 TP 304 & ASTM A312 TP304L, ASTM A312 TP 316 & ASTM A312 TP 316L?
Difference is due to the carbon content. The Letter “L” denotes lower percentage of carbon.
% of carbon content in :-
I. ASTM A312 TP 304 – 0.08 %
II. ASTM A312 TP 304L- 0.035%
III. ASTM A312 TP 316 – 0.08 %
IV. ASTM A312 TP 316L- 0.035%

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