ASTM A691 Pipe Tensile Chart

Grade Tensile (MPa) Yield (MPa) Elong. (50mm) Reduc’n of Area*
1CR 380 – 550 230 min 22% min –
1-1/4CR 415 – 585 240 min 22% min –
2-1/4CR, 5CR, 9CR 415 – 585 205 min 18% min 40% min
91 415 – 585 205 min 18% min 40% min

Grade Tensile (MPa) Yield (MPa) Elong. (50 mm) Reduc’n of Area*

2 485 – 620 310 min 22% min –
1-1/4CR 515 – 690 310 min 22% min –
1CR 450 – 585 275 min 22% min –
2-1/4CR, 5CR, 9CR 515 – 690 310 min 18% min 40% min
91 585 – 760 415 min 18% min –

ASTM A691 GRADE 1 1/4 CR AS Pipes Mechanical Table

Class Heat Treatment on Pipe Section see: Radiography, see Section Pressure Test, see :
10 none none none
11 none 9 none
12 none 9 8.3
13 none none 8.3
21 stress relieved, see 6.3.1 none none
21 stress relieved, see 6.3.1 9 none
ASTM A691 Class 22 stress relieved, see 6.3.1 9 8.3
23 stress relieved, see 6.3.1 none 8.3
31 normalized, see 6.3.2 none none
31 normalized, see 6.3.2 9 none
32 normalized, see 6.3.2 9 8.3
33 normalized, see 6.3.2 none 8.3
40 normalized and tempered, see 6.3.3 none none
43 normalized and tempered, see 6.3.3 9 none
43 normalized and tempered, see 6.3.3 9 8.3
43 normalized and tempered, see 6.3.3 none 8.3
50 quenched and tempered, see 6.3.4 none none
51 quenched and tempered, see 6.3.4 9 none
52 quenched and tempered, see 6.3.4 9 8.3
53 quenched and tempered, see 6.3.4 none 8.3
60 normalized and precipitation heat none none treated none none
61 normalized and precipitation heat none none treated 9 none
62 normalized and precipitation heat none none treated 9 8.3
63 normalized and precipitation heat none none treated none 8.3
70 normalized and precipitation heat none none treated none none
71 normalized and precipitation heat none none treated 9 none
72 normalized and precipitation heat none none treated 9 8.3
73 normalized and precipitation heat none none treated none 8.3