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ASTM A53
ASTM A106
API 5L
ASTM A333
ASTM A335
ASTM A312
ASTM A350
ASTM A105
ASTM A694
ASTM A182
A350 LF2
ASTM A234
ASTM A420
ASTM A860
 A193 B7
A194 2H
A240 GR.410
A312 S31726

ASTM A333 

ASTM A333 - Seamless and Welded Steel Pipe for Low Temperature Service

Chemical Compositions, max ,%
Grade C Mn S Si      Ni Cr Cu Al V Nb Mo Co
1 (Note) 0.30 0.40-1.06 0.025 0.025
3 0.19 0.31-0.64 0.025 0.025 0.18-0.37 3.18-3.82
4 0.12 0.50-1.05 0.025 0.025 0.08-0.37 0.47-0.98 0.44-1.01 0.40-0.75 0.04-0.30
6 (Note) 0.30 0.29-1.06 0.025 0.025 ≥0.10
7 0.19 0.90 0.025 0.025 0.13-0.32 2.03-2.57
8 0.13 0.90 0.025 0.025 0.13-0.32 8.40-9.60
9 0.20 0.40-1.06 0.025 0.025 1.60-2.24 0.75-1.25
10 0.20 1.15-1.50 0.025 0.025 0.10-0.35 0.25 0.15 0.15 0.06 0.12 0.05 0.05
11 0.10 0.60 0.025 0.025 0.35 35.0-37.0 0.50 0.05 0.05

Note:
For each reduction of 0.01 % carbon below 0.30 %, an increase of 0.05 % manganese above 1.06 % would be permitted to a maximum of 1.35 % manganese.

Tensile Requirements

Grade Tensile strength, min,    psi [MPa] Yield strength,
min,    psi
[MPa]
Elongation in 2 in. [50 mm], min, %:
       Longitudinal             Transverse
1 55 000 [380] 30 000 [205] 35 25
3 65 000 [450] 35 000 [240] 30 20
4 60 000 [415] 35 000 [240] 30 16.5
6 60 000 [415] 35 000 [240] 30 16.5
7 65 000 [450] 35 000 [240] 30 22
8 100 0000 [690] 75 000 [515] 22
9 63 000 [435] 46 000 [315] 28
10 80 000 [550] 65 000 [450] 22
11 65 000 [450] 35 000 [240] 18 (Note)

Note:
Elongation of Grade 11 is for all walls and small sizes tested in full section.


Impact Requirements

Minimum Impact Test Temperature
 Grade
°F
 °C
1 −50  −45
3 −150  −100
4 −150  −100
6 −50  −45
7 −100  −75
8 −320  −195
9 −100  −75
10 −75  −60
Impact Requirements for Grades 1, 3, 4, 6, 7, 9, and 10
Size of Specimen,
mm
Minimum Average Notched Bar Impact Value of Each Set of Three Specimens Minimum Notched Bar Impact Value of One Specimen Only of a Set
ft·lbf ft·lbf
10 × 10  13 18 10 14
10 × 7.5 10 14 8 11
10 × 6.6 7 12 7 9
10 × 5 7 9 5 7
10 ×3.33 5 7 3 4
10 × 2.5 4 5 3 4

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