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Low temperature with seamless steel tube welding
Low temperature with seamless steel tube welding
Standard: ASTM A333 Seamless Welded Steel Pipe-intended for Low-responds as required Service The main production steel tube brand: Grade 1, Grade 3 Grade 4, Grade 6, 7, 8, Grade Grade, Grade 9, 10, 11 Grade Grade
Product description

IMPACT TEMPERATURE

GRADE

MINIMUM IMPACT TEST TEMPERATURE

Grade 1

-50

-45

Grade 3

-150

-100

Grade 4

-150

-100

Grade 6

-50

-45

Grade 7

-100

-75

Grade 8

-320

-195

Grade 9

-50

-45

Grade 10

-150

-100

MECHANICAL PROPERTIES

STANDARD

GRADE

TENSILE STRENGTH(MPA)

MIN YIELD POINT(MPA)

ELONGATION (%)

Longitudinal

Transverse

ASTM A333

Grade 1

380

205

35

25

Grade 3

≥450

≥240

≥30

≥20

Grade 4

≥415

≥240

≥30

≥16.5

Grade 6

≥415

≥240

≥30

≥16.5

Grade 7

≥450

≥240

≥30

≥22

Grade 8

≥690

≥515

≥22

Grade 9

≥435

≥315

≥28

Grade 10

≥550

≥450

≥22

Grade 11

≥450

≥240

≥18

CHEMICAL COMPOSITION

STANDARD

GRADE

CHEMICAL COMPOSITION(%)

C

Si

Mn

P

S

Cr

Ni

Cu

Mo

V

Al

ASTM A333

Grade 1

≤0.30

 

0.401.06

≤0.025

≤0.025

 

 

 

 

 

 

Grade 3

≤0.19

0.180.37

0.310.64

≤0.025

≤0.025

 

3.183.82

 

 

 

 

Grade 4

≤0.12

0.180.37

0.501.05

≤0.025

≤0.025

0.441.01

0.470.98

0.400.75

 

 

0.040.30

Grade 6

≤0.30

≥0.10

0.291.06

≤0.025

≤0.025

 

 

 

 

 

 

Grade 7

≤0.19

0.130.32

≤0.90

≤0.025

≤0.025

 

2.032.57

 

 

 

 

Grade 8

≤0.13

0.130.32

≤0.90

≤0.025

≤0.025

 

8.409.60

 

 

 

 

Grade 9

≤0.20

 

0.401.06

≤0.025

≤0.025

 

1.602.24

0.751.25

 

 

 

Grade 10

≤0.20

0.100.35

1.151.50

≤0.03

≤0.015

≤0.15

≤0.25

≤0.015

≤0.50

≤0.12

≤0.06

Grade 11

≤0.10

≤0.35

≤0.6

≤0.025

≤0.025

≤0.50

35.037.0

 

≤0.50

 

 



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