This specification covers steel pipe: electricfusionwelded with filler metal added, fabricated from pressurevessel quality plate of any of several analyses and strength levels and suitable for highpressure 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. (400 mm) in outside diameter or larger with wall thickness up to 3 in (75 mm), inclusive. Pipe having other dimensions may be furnished provided it complies with all other requirements of this specification.
A672 Grades and Class
ASTM A672 A 45 Class 10 
ASTM A672 A 50 Class 10 
ASTM A672 A 55 Class 10 
ASTM A672 B 60 Class 10 
ASTM A672 B 65 Class 10 
ASTM A672 B 70 Class 10 
ASTM A672 A 45 Class 11 
ASTM A672 A 50 Class 11 
ASTM A672 A 55 Class 11 
ASTM A672 B 60 Class 11 
ASTM A672 B 65 Class 11 
ASTM A672 B 70 Class 11 
ASTM A672 A 45 Class 12 
ASTM A672 A 50 Class 12 
ASTM A672 A 55 Class 12 
ASTM A672 B 60 Class 12 
ASTM A672 B 65 Class 12 
ASTM A672 B 70 Class 12 
ASTM A672 A 45 Class 13 
ASTM A672 A 50 Class 13 
ASTM A672 A 55 Class 13 
ASTM A672 B 60 Class 13 
ASTM A672 B 65 Class 13 
ASTM A672 B 70 Class 13 
ASTM A672 A 45 Class 20 
ASTM A672 A 50 Class 20 
ASTM A672 A 55 Class 20 
ASTM A672 B 60 Class 20 
ASTM A672 B 65 Class 20 
ASTM A672 B 70 Class 20 
ASTM A672 A 45 Class 21 
ASTM A672 A 50 Class 21 
ASTM A672 A 55 Class 21 
ASTM A672 B 60 Class 21 
ASTM A672 B 65 Class 21 
ASTM A672 B 70 Class 21 
ASTM A672 A 45 Class 22 
ASTM A672 A 50 Class 22 
ASTM A672 A 55 Class 22 
ASTM A672 B 60 Class 22 
ASTM A672 B 65 Class 22 
ASTM A672 B 70 Class 22 
ASTM A672 A 45 Class 23 
ASTM A672 A 50 Class 23 
ASTM A672 A 55 Class 23 
ASTM A672 B 60 Class 23 
ASTM A672 B 65 Class 23 
ASTM A672 B 70 Class 23 
ASTM A672 A 45 Class 30 
ASTM A672 A 50 Class 30 
ASTM A672 A 55 Class 30 
ASTM A672 B 60 Class 30 
ASTM A672 B 65 Class 30 
ASTM A672 B 70 Class 30 
ASTM A672 A 45 Class 31 
ASTM A672 A 50 Class 31 
ASTM A672 A 55 Class 31 
ASTM A672 B 60 Class 31 
ASTM A672 B 65 Class 31 
ASTM A672 B 70 Class 31 
ASTM A672 A 45 Class 32 
ASTM A672 A 50 Class 32 
ASTM A672 A 55 Class 32 
ASTM A672 B 60 Class 32 
ASTM A672 B 65 Class 32 
ASTM A672 B 70 Class 32 
ASTM A672 A 45 Class 33 
ASTM A672 A 50 Class 33 
ASTM A672 A 55 Class 33 
ASTM A672 B 60 Class 33 
ASTM A672 B 65 Class 33 
ASTM A672 B 70 Class 33 
ASTM A672 A 45 Class 40 
ASTM A672 A 50 Class 40 
ASTM A672 A 55 Class 40 
ASTM A672 B 60 Class 40 
ASTM A672 B 65 Class 40 
ASTM A672 B 70 Class 40 
ASTM A672 A 45 Class 41 
ASTM A672 A 50 Class 41 
ASTM A672 A 55 Class 41 
ASTM A672 B 60 Class 41 
ASTM A672 B 65 Class 41 
ASTM A672 B 70 Class 41 
ASTM A672 A 45 Class 42 
ASTM A672 A 50 Class 42 
ASTM A672 A 55 Class 42 
ASTM A672 B 60 Class 42 
ASTM A672 B 65 Class 42 
ASTM A672 B 70 Class 42 
ASTM A672 A 45 Class 43 
ASTM A672 A 50 Class 43 
ASTM A672 A 55 Class 43 
ASTM A672 B 60 Class 43 
ASTM A672 B 65 Class 43 
ASTM A672 B 70 Class 43 
ASTM A672 A 45 Class 50 
ASTM A672 A 50 Class 50 
ASTM A672 A 55 Class 50 
ASTM A672 B 60 Class 50 
ASTM A672 B 65 Class 50 
ASTM A672 B 70 Class 50 
ASTM A672 A 45 Class 51 
ASTM A672 A 50 Class 51 
ASTM A672 A 55 Class 51 
ASTM A672 B 60 Class 51 
ASTM A672 B 65 Class 51 
ASTM A672 B 70 Class 51 
ASTM A672 A 45 Class 52 
ASTM A672 A 50 Class 52 
ASTM A672 A 55 Class 52 
ASTM A672 B 60 Class 52 
ASTM A672 B 65 Class 52 
ASTM A672 B 70 Class 52 
ASTM A672 A 45 Class 53 
ASTM A672 A 50 Class 53 
ASTM A672 A 55 Class 53 
ASTM A672 B 60 Class 53 
ASTM A672 B 65 Class 53 
ASTM A672 B 70 Class 53 
ASTM A672 C 55 Class 10 
ASTM A672 C 60 Class 10 
ASTM A672 C 65 Class 10 
ASTM A672 C 70 Class 10 
ASTM A672 D 70 Class 10 
ASTM A672 D 80 Class 10 
ASTM A672 C 55 Class 11 
ASTM A672 C 60 Class 11 
ASTM A672 C 65 Class 11 
ASTM A672 C 70 Class 11 
ASTM A672 D 70 Class 11 
ASTM A672 D 80 Class 11 
ASTM A672 C 55 Class 12 
ASTM A672 C 60 Class 12 
ASTM A672 C 65 Class 12 
ASTM A672 C 70 Class 12 
ASTM A672 D 70 Class 12 
ASTM A672 D 80 Class 12 
ASTM A672 C 55 Class 13 
ASTM A672 C 60 Class 13 
ASTM A672 C 65 Class 13 
ASTM A672 C 70 Class 13 
ASTM A672 D 70 Class 13 
ASTM A672 D 80 Class 13 
ASTM A672 C 55 Class 20 
ASTM A672 C 60 Class 20 
ASTM A672 C 65 Class 20 
ASTM A672 C 70 Class 20 
ASTM A672 D 70 Class 20 
ASTM A672 D 80 Class 20 
ASTM A672 C 55 Class 21 
ASTM A672 C 60 Class 21 
ASTM A672 C 65 Class 21 
ASTM A672 C 70 Class 21 
ASTM A672 D 70 Class 21 
ASTM A672 D 80 Class 21 
ASTM A672 C 55 Class 22 
ASTM A672 C 60 Class 22 
ASTM A672 C 65 Class 22 
ASTM A672 C 70 Class 22 
ASTM A672 D 70 Class 22 
ASTM A672 D 80 Class 22 
ASTM A672 C 55 Class 23 
ASTM A672 C 60 Class 23 
ASTM A672 C 65 Class 23 
ASTM A672 C 70 Class 23 
ASTM A672 D 70 Class 23 
ASTM A672 D 80 Class 23 
ASTM A672 C 55 Class 30 
ASTM A672 C 60 Class 30 
ASTM A672 C 65 Class 30 
ASTM A672 C 70 Class 30 
ASTM A672 D 70 Class 30 
ASTM A672 D 80 Class 30 
ASTM A672 C 55 Class 31 
ASTM A672 C 60 Class 31 
ASTM A672 C 65 Class 31 
ASTM A672 C 70 Class 31 
ASTM A672 D 70 Class 31 
ASTM A672 D 80 Class 31 
ASTM A672 C 55 Class 32 
ASTM A672 C 60 Class 32 
ASTM A672 C 65 Class 32 
ASTM A672 C 70 Class 32 
ASTM A672 D 70 Class 32 
ASTM A672 D 80 Class 32 
ASTM A672 C 55 Class 33 
ASTM A672 C 60 Class 33 
ASTM A672 C 65 Class 33 
ASTM A672 C 70 Class 33 
ASTM A672 D 70 Class 33 
ASTM A672 D 80 Class 33 
ASTM A672 C 55 Class 40 
ASTM A672 C 60 Class 40 
ASTM A672 C 65 Class 40 
ASTM A672 C 70 Class 40 
ASTM A672 D 70 Class 40 
ASTM A672 D 80 Class 40 
ASTM A672 C 55 Class 41 
ASTM A672 C 60 Class 41 
ASTM A672 C 65 Class 41 
ASTM A672 C 70 Class 41 
ASTM A672 D 70 Class 41 
ASTM A672 D 80 Class 41 
ASTM A672 C 55 Class 42 
ASTM A672 C 60 Class 42 
ASTM A672 C 65 Class 42 
ASTM A672 C 70 Class 42 
ASTM A672 D 70 Class 42 
ASTM A672 D 80 Class 42 
ASTM A672 C 55 Class 43 
ASTM A672 C 60 Class 43 
ASTM A672 C 65 Class 43 
ASTM A672 C 70 Class 43 
ASTM A672 D 70 Class 43 
ASTM A672 D 80 Class 43 
ASTM A672 C 55 Class 50 
ASTM A672 C 60 Class 50 
ASTM A672 C 65 Class 50 
ASTM A672 C 70 Class 50 
ASTM A672 D 70 Class 50 
ASTM A672 D 80 Class 50 
ASTM A672 C 55 Class 51 
ASTM A672 C 60 Class 51 
ASTM A672 C 65 Class 51 
ASTM A672 C 70 Class 51 
ASTM A672 D 70 Class 51 
ASTM A672 D 80 Class 51 
ASTM A672 C 55 Class 52 
ASTM A672 C 60 Class 52 
ASTM A672 C 65 Class 52 
ASTM A672 C 70 Class 52 
ASTM A672 D 70 Class 52 
ASTM A672 D 80 Class 52 
ASTM A672 C 55 Class 53 
ASTM A672 C 60 Class 53 
ASTM A672 C 65 Class 53 
ASTM A672 C 70 Class 53 
ASTM A672 D 70 Class 53 
ASTM A672 D 80 Class 53 
ASTM A672 H 75 Class 10 
ASTM A672 H 80 Class 10 
ASTM A672 J 80 Class 10 
ASTM A672 J 90 Class 10 
ASTM A672 J 100 Class 10 
ASTM A672 K 75 Class 10 
ASTM A672 H 75 Class 11 
ASTM A672 H 80 Class 11 
ASTM A672 J 80 Class 11 
ASTM A672 J 90 Class 11 
ASTM A672 J 100 Class 11 
ASTM A672 K 75 Class 11 
ASTM A672 H 75 Class 12 
ASTM A672 H 80 Class 12 
ASTM A672 J 80 Class 12 
ASTM A672 J 90 Class 12 
ASTM A672 J 100 Class 12 
ASTM A672 K 75 Class 12 
ASTM A672 H 75 Class 13 
ASTM A672 H 80 Class 13 
ASTM A672 J 80 Class 13 
ASTM A672 J 90 Class 13 
ASTM A672 J 100 Class 13 
ASTM A672 K 75 Class 13 
ASTM A672 H 75 Class 20 
ASTM A672 H 80 Class 20 
ASTM A672 J 80 Class 20 
ASTM A672 J 90 Class 20 
ASTM A672 J 100 Class 20 
ASTM A672 K 75 Class 20 
ASTM A672 H 75 Class 21 
ASTM A672 H 80 Class 21 
ASTM A672 J 80 Class 21 
ASTM A672 J 90 Class 21 
ASTM A672 J 100 Class 21 
ASTM A672 K 75 Class 21 
ASTM A672 H 75 Class 22 
ASTM A672 H 80 Class 22 
ASTM A672 J 80 Class 22 
ASTM A672 J 90 Class 22 
ASTM A672 J 100 Class 22 
ASTM A672 K 75 Class 22 
ASTM A672 H 75 Class 23 
ASTM A672 H 80 Class 23 
ASTM A672 J 80 Class 23 
ASTM A672 J 90 Class 23 
ASTM A672 J 100 Class 23 
ASTM A672 K 75 Class 23 
ASTM A672 H 75 Class 30 
ASTM A672 H 80 Class 30 
ASTM A672 J 80 Class 30 
ASTM A672 J 90 Class 30 
ASTM A672 J 100 Class 30 
ASTM A672 K 75 Class 30 
ASTM A672 H 75 Class 31 
ASTM A672 H 80 Class 31 
ASTM A672 J 80 Class 31 
ASTM A672 J 90 Class 31 
ASTM A672 J 100 Class 31 
ASTM A672 K 75 Class 31 
ASTM A672 H 75 Class 32 
ASTM A672 H 80 Class 32 
ASTM A672 J 80 Class 32 
ASTM A672 J 90 Class 32 
ASTM A672 J 100 Class 32 
ASTM A672 K 75 Class 32 
ASTM A672 H 75 Class 33 
ASTM A672 H 80 Class 33 
ASTM A672 J 80 Class 33 
ASTM A672 J 90 Class 33 
ASTM A672 J 100 Class 33 
ASTM A672 K 75 Class 33 
ASTM A672 H 75 Class 40 
ASTM A672 H 80 Class 40 
ASTM A672 J 80 Class 40 
ASTM A672 J 90 Class 40 
ASTM A672 J 100 Class 40 
ASTM A672 K 75 Class 40 
ASTM A672 H 75 Class 41 
ASTM A672 H 80 Class 41 
ASTM A672 J 80 Class 41 
ASTM A672 J 90 Class 41 
ASTM A672 J 100 Class 41 
ASTM A672 K 75 Class 41 
ASTM A672 H 75 Class 42 
ASTM A672 H 80 Class 42 
ASTM A672 J 80 Class 42 
ASTM A672 J 90 Class 42 
ASTM A672 J 100 Class 42 
ASTM A672 K 75 Class 42 
ASTM A672 H 75 Class 43 
ASTM A672 H 80 Class 43 
ASTM A672 J 80 Class 43 
ASTM A672 J 90 Class 43 
ASTM A672 J 100 Class 43 
ASTM A672 K 75 Class 43 
ASTM A672 H 75 Class 50 
ASTM A672 H 80 Class 50 
ASTM A672 J 80 Class 50 
ASTM A672 J 90 Class 50 
ASTM A672 J 100 Class 50 
ASTM A672 K 75 Class 50 
ASTM A672 H 75 Class 51 
ASTM A672 H 80 Class 51 
ASTM A672 J 80 Class 51 
ASTM A672 J 90 Class 51 
ASTM A672 J 100 Class 51 
ASTM A672 K 75 Class 51 
ASTM A672 H 75 Class 52 
ASTM A672 H 80 Class 52 
ASTM A672 J 80 Class 52 
ASTM A672 J 90 Class 52 
ASTM A672 J 100 Class 52 
ASTM A672 K 75 Class 52 
ASTM A672 H 75 Class 53 
ASTM A672 H 80 Class 53 
ASTM A672 J 80 Class 53 
ASTM A672 J 90 Class 53 
ASTM A672 J 100 Class 53 
ASTM A672 K 75 Class 53 
ASTM A672 K 85 Class 10 
ASTM A672 L65 Class 10 
ASTM A672 L70 Class 10 
ASTM A672 L75 Class 10 
ASTM A672 N 75 Class 10 

ASTM A672 K 85 Class 11 
ASTM A672 L65 Class 11 
ASTM A672 L70 Class 11 
ASTM A672 L75 Class 11 
ASTM A672 N 75 Class 11 

ASTM A672 K 85 Class 12 
ASTM A672 L65 Class 12 
ASTM A672 L70 Class 12 
ASTM A672 L75 Class 12 
ASTM A672 N 75 Class 12 

ASTM A672 K 85 Class 13 
ASTM A672 L65 Class 13 
ASTM A672 L70 Class 13 
ASTM A672 L75 Class 13 
ASTM A672 N 75 Class 13 

ASTM A672 K 85 Class 20 
ASTM A672 L65 Class 20 
ASTM A672 L70 Class 20 
ASTM A672 L75 Class 20 
ASTM A672 N 75 Class 20 

ASTM A672 K 85 Class 21 
ASTM A672 L65 Class 21 
ASTM A672 L70 Class 21 
ASTM A672 L75 Class 21 
ASTM A672 N 75 Class 21 

ASTM A672 K 85 Class 22 
ASTM A672 L65 Class 22 
ASTM A672 L70 Class 22 
ASTM A672 L75 Class 22 
ASTM A672 N 75 Class 22 

ASTM A672 K 85 Class 23 
ASTM A672 L65 Class 23 
ASTM A672 L70 Class 23 
ASTM A672 L75 Class 23 
ASTM A672 N 75 Class 23 

ASTM A672 K 85 Class 30 
ASTM A672 L65 Class 30 
ASTM A672 L70 Class 30 
ASTM A672 L75 Class 30 
ASTM A672 N 75 Class 30 

ASTM A672 K 85 Class 31 
ASTM A672 L65 Class 31 
ASTM A672 L70 Class 31 
ASTM A672 L75 Class 31 
ASTM A672 N 75 Class 31 

ASTM A672 K 85 Class 32 
ASTM A672 L65 Class 32 
ASTM A672 L70 Class 32 
ASTM A672 L75 Class 32 
ASTM A672 N 75 Class 32 

ASTM A672 K 85 Class 33 
ASTM A672 L65 Class 33 
ASTM A672 L70 Class 33 
ASTM A672 L75 Class 33 
ASTM A672 N 75 Class 33 

ASTM A672 K 85 Class 40 
ASTM A672 L65 Class 40 
ASTM A672 L70 Class 40 
ASTM A672 L75 Class 40 
ASTM A672 N 75 Class 40 

ASTM A672 K 85 Class 41 
ASTM A672 L65 Class 41 
ASTM A672 L70 Class 41 
ASTM A672 L75 Class 41 
ASTM A672 N 75 Class 41 

ASTM A672 K 85 Class 42 
ASTM A672 L65 Class 42 
ASTM A672 L70 Class 42 
ASTM A672 L75 Class 42 
ASTM A672 N 75 Class 42 

ASTM A672 K 85 Class 43 
ASTM A672 L65 Class 43 
ASTM A672 L70 Class 43 
ASTM A672 L75 Class 43 
ASTM A672 N 75 Class 43 

ASTM A672 K 85 Class 50 
ASTM A672 L65 Class 50 
ASTM A672 L70 Class 50 
ASTM A672 L75 Class 50 
ASTM A672 N 75 Class 50 

ASTM A672 K 85 Class 51 
ASTM A672 L65 Class 51 
ASTM A672 L70 Class 51 
ASTM A672 L75 Class 51 
ASTM A672 N 75 Class 51 

ASTM A672 K 85 Class 52 
ASTM A672 L65 Class 52 
ASTM A672 L70 Class 52 
ASTM A672 L75 Class 52 
ASTM A672 N 75 Class 52 

ASTM A672 K 85 Class 53 
ASTM A672 L65 Class 53 
ASTM A672 L70 Class 53 
ASTM A672 L75 Class 53 
ASTM A672 N 75 Class 53 