Carbon steel is used for normal pressure temperature applications. Alloy steel is used for high-pressure temperature applications. Stainless steel is used for corrosive applications. And nickel steel is used for a low-temperature application.
Pipe Material Standards
- Carbon Steel: – ASTM A53 Gr. A/B, ASTM A106 Gr. A/B/C, ASTM A333 Gr.1/Gr.6
- Alloy Steel: – ASTM A335 Gr.P1/P2/P5/P7/P9/P11/P12/P22.
- Stainless Steel: – ASTM A312TP304/TP304L/TP304H/TP308/TP310/TP316/TP316L/ TP316H/TP317/TP321/TP321H/TP347/TP347H/TP348/TP348H.
- Nickel Steel: – ASTM A333Gr.3/ Gr.8.
Tube Material Standards
- Carbon Steel:- ASTM A178/179/192, ASTM A334 Gr.1/6.
- Alloy Steel :- ASTM A161T1, ASTM A213T1/T2/T5/T7/T9/T11/T12/T22.
- Stainless Steel :- ASTM A213 TP304/TP304L/TP304H/TP310/TP316/TP316L/TP316H/ TP317/TP321/TP321H/TP347/TP347H/TP348/TP348H, ASTM A608 HK40.
- Nickel Steel :- ASTM A334Gr.3/Gr.8
Wrought Iron fittings Material Standards
- Carbon Steel :- ASTM A234Gr.WPA/B, ASTM A420 Gr.WPL6.
- Alloy Steel :- ASTM A234 WP1/WP5/WP7/WP9/WP11/WP12/WP22.
- Stainless Steel :- ASTM A403 WP304/WP304L/WP304H/WP309/WP310/WP316/ WP316L/WP316H/ WP317/WP321/WP321H/WP347/WP347H/ WP348.
- Nickel Steel :- ASTM A420WPL6/WPL8.
Forged Fittings Material Standards
- Carbon Steel :- ASTM A181, ASTM A105, ASTM A350 LF1/2.
- Alloy Steel :- ASTM A182F1/F2/F5/F7/F9/F11/F12/F22.
- Stainless Steel :- ASTM A182F6/F304/F304L/F304H/F310/F316/F316L /F316H/F321/F321H/F347/F347H/F348.
- Nickel Steel :- ASTM A350 LF3, ASTM A522.
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Plates Material Standards
- Carbon Steel :- ASTM A285, ASTM A515, ASTM A516.
- Alloy Steel:- ASTM A387 Gr.2/Gr.5/Gr.7/Gr.9/Gr.11/Gr.12/Gr.22.
- Stainless Steel :- ASTM A240 TP410/TP405/TP430/TP304/TP304L/TP309/TP310S/ TP316/TP316L/TP317/TP321/TP347/TP348
- Nickel Steel :- ASTM A203 Gr.D/Gr.E, ASTM A353.
As said earlier, you can visit my website hardhatengineer.com for this list. Let’s move to the next question.
What is the difference between ASTM A106 Gr.A / Gr.B/ Gr.C.?
This is a very common question. The difference between Gr A, B &C indicates different % of carbon. A106 Gr A has 0.25% Carbon, Gr B has 0.30%, and Gr C has 0.35% Carbon. Now, remember that this % of carbon will affect the strength and ductility of the material.
What is the difference between ASTM A312 TP 304, TP304H, and TP 304L?
This is also a very similar question to what you have learned earlier. The difference between 304, 304H, and 304L is different % of carbon in these grades. 0.08% max for 304, 0.035% max for 304L, 0.04-0.1% for 304H.
The last question of this video is;
What is low alloy steel, and what is high alloy steel?
The Sum of the percentage of alloying elements in the steel will decide whether steel is called low alloy or high alloy steel.
- Steel is called Low alloy steel if the sum of total Alloying elements is < 5%
- And if the sum of total Alloying elements is > 5%, it is called High alloy steel.