ASTM A672 / A672M

This speciíìcation covers steel pipe: electric-fusionwelded with ñller metal added, fabricated from pressure-vessel qualiîy plate of any of several analyses and strength levels and suitable for high-pressure service at moderate temperatures. Heat treatment may or may not be required to attain the desired properties or to comply with applicable code requirements. Supplementary requirements are provided for use when additional testing or examination is desired.The specification nominally covers pipe 16 in. (405 mm) in outside diameter or larger with wall thicknesses up to 3 in. (75 mm), inclusive. Pipe having other dimensions may be furnished provided it complies with all other requirements of this specification.

Pipe Grades	Type of Steel	ASTM Grades
A 45	Plain Carbon	A285 Grade A
A 50		A285 Grade B
A 55		A285 Grade C
B 55	Plain Carbon,Killed	A515 Grade 55
B 60		A515 Grade 60
B 65		A515 Grade 65
B 70		A515 Grade 70
C 55	Plain Carbon,Killed,Fine Grain	A516 Grade 55
C 60		A516 Grade 60
C 65		A516 Grade 65
C 70		A516 Grade 70
D 70	Manganese Silicon-Normalized	A537 Grade 1
D 80	Manganese Silicon-Q&TA	A537 Grade 2
E 55	Plain Carbon	A442 Grade 55
E 60	Plain Carbon	A442 Grade 60
H 75	Manganese-Molybdenum-Normalized	A302 Grade A
H 80		A302 Grade B,C or D
J 80	Manganese-Molybdenum-Q&TA	A533 Class-1B
J 90		A533 Class-2B
J 100		A533 Class-2C
K 75	Chromium-Manganese-Silicon	A202 Grade A
K 85		A202 Grade B
L 65	Molybdenum	A204 Grade A
L 70		A204 Grade B
L 75		A204 Grade C
N 75	Manganese-Silicon	A299

Note A: Q&T = quenched and tempered. Note B: Any grade may be furnished.

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