Material – ASTM A333 Gr 6



 

ASTM A 333 Gr 6

Material Specifications.

 

SPECIFICATION FOR SEAMLESS AND WELDED STEEL PIPE FOR LOW TEMPERATURE SERVICE

 

 

 


CHEMICAL REQUIREMENT

Composition, %

Grade 6 A
Carbon, max 0.30
Manganese 0.29–1.06
Phosphorus, max 0.025
Sulfur, max 0.025

A 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 6
Tensile strength, min, psi (MPa)
60 000 (415)
Yield strength, min, psi (MPa)
35 000 (240)

IMPACT TEMPERATURE

Minimum Impact Test Temperature -45 C(-50 F)

IMPACT REQUIREMENTS

Minimum Average Notched Bar Impact Value of Each Set of Three Specimens Minimum Notched Bar Impact Value of One Specimen Only of a Set
Size of Specimen, mm
ft-lbf
J
ft-lbf
J
10 by 10
13
18
10
14
10 by 7.5
10
14
8
11
10 by 6.67
9
12
7
9
10 by 5
7
9
5
7
10 by 3.33
5
7
3
4
10 by 2.5
4
5
3
4

Straight line interpolation for intermediate values is permitted.

IMPACT TEMPERATURE REDUCTION

Specimen Width Along Notch or Actual Material Thickness mm Temperature Reduction,
Degrees Colder C
10 (standard size) 0
9 0
8 0
7.5 (3/4 standard size) 3
7 4
6.67 (2/3 standard size) 5
6 8
5 (1/2 standard size) 11
4 17
3.33 (1/3 standard size) 19
3 22
2.5 (1/4 standard size) 28

P Number/ Group Number

ASTM A333
Grade 6
P Number
1
Group
1