سلس انابيب الصلب الثقيل A333 / A333M Gr1، Gr2، Gr3، Gr4، Gr 5، Gr6

Element

Composition,%

Grade 1A

Grade 3

Grade 4

Grade 6A

Grade 7A

Carbon, max

0.30

0.19

0.12

0.30

0.19

Manganese

0.40-1.06

0.31-0.64

0.50-1.05

0.29-1.06

0.90max

Phosphorus,max

0.025

0.025

0.025

0.025

0.025

Sulfur,max

0.025

0.025

0.025

0.025

0.025

Silicon

-

0.18-0.37

0.18-0.37

0.10min

0.13-0.32

Nickel

-

3.18-3.82

0.47-0.98

-

2.03-2.57

Chromium

-

-

0.44-1.01

-

-

Copper

-

-

0.40-0.75

-

-

Aluminum

-

-

0.04-0.30

-

-

Vanadium,max

-

-

-

-

-

Columbium,max

-

-

-

-

-

Molybdenum,max

-

-

-

-

-

Cobalt

-

-

-

-

-

Grade

Minimum Impact Test Temperature

°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

11

-320

-195