ASTM A106 steel pipe,Boier tube,Alloy steel pipe,ASTM A106 steel pipe

ASTM A106/ASME SA106 is the standard specification for seamless carbon steel pipe applied for high temperature services. It includes three grades A, B and C, and common use grade is A106 Grade B. It used in different industries not only for pipeline systems like oil and gas, water, mineral slurry transmission, but also for boiler, construction, structural purposes.

OD/mm

WT/mm

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

21.3

√

26.7

√

33.4

√

48.3

√

60.3

√

73

√

88.9

√

114.3

√

168.3

√

219.1

√

273.1

√

323.3

√

355.6

√

406.4

√

457.2

√

508

√

609.6

√

660.4

√

711.2

√

762

√

DIMENSION TOLERANCES OF SEAMLESS STEEL PIPE

Types	Types		Uses
Hot rolled	OD	<50	±0.50mm
	OD	≥50	±1%
	WT	<4	±12. 5%
		≥4~20	+15%, - 12. 5%
		>20	±12. 5%
Cold drawn	OD	6~10	±0. 20mm
		10~30	±0. 40mm
		30~50	±0. 45
		>50	±1%
	WT	≤1	±0. 15mm
		>1~3	+15%, - 10%
		>3	+12.5%, - 10%

STANDARD OF ASTM A106 GR.B Seamless steel pipe

Chemical Composition(%)

Mechanical Properties

Standard

Grade

Tensile Strength (Mpa)

Yield Strength (Mpa)

Elongation (%)

c

Si

Mn

P

S

Mo

Cr

V

ASTM A106

A

≤0.25

≤0.10

0.27-0.93

≤0.035

≤0.15

≤0.40

≤0.08

≥330

≥205

≥25

ASTM A106

B

≤0.30

≤0.10

0.29-1.06

≤0.035

≤0.15

≤0.40

≤0.08

≥415

≥240

≥16.5

ASTM A106

C

≤0.35

≤0.10

0.29-1.06

≤0.035

≤0.15

≤0.40

≤0.08

≥485

≥275

≥16.5

DIMENSION TOLERANCES OF SEAMLESS STEEL PIPE

Types	Types		Uses
Hot rolled	OD	<50	±0.50mm
	OD	≥50	±1%
	WT	<4	±12. 5%
		≥4~20	+15%, - 12. 5%
		>20	±12. 5%
Cold drawn	OD	6~10	±0. 20mm
		10~30	±0. 40mm
		30~50	±0. 45
		>50	±1%
	WT	≤1	±0. 15mm
		>1~3	+15%, - 10%
		>3	+12.5%, - 10%

STANDARD OF ASTM A106 GR.B Seamless steel pipe

Chemical Composition(%)

Mechanical Properties

Standard

Grade

Tensile Strength (Mpa)

Yield Strength (Mpa)

Elongation (%)

c

Si

Mn

P

S

Mo

Cr

V

ASTM A106

A

≤0.25

≤0.10

0.27-0.93

≤0.035

≤0.15

≤0.40

≤0.08

≥330

≥205

≥25

ASTM A106

B

≤0.30

≤0.10

0.29-1.06

≤0.035

≤0.15

≤0.40

≤0.08

≥415

≥240

≥16.5

ASTM A106

C

≤0.35

≤0.10

0.29-1.06

≤0.035

≤0.15

≤0.40

≤0.08

≥485

≥275

≥16.5

Hot rolled manufacturing process:

Round Pipe Billet → Heating → Punching → Three-Roller Skew Rolling → Annealing →Acid Pickling→Coating Oil (Copper Plating) → Multi-pass Cold Drawing or ColdRolling → Pipe Billet → Heat Treatment → Straightening → Hydrostatic Test or Inspection → Marking → Warehousing

Cold drawn manufacturing process:

Round Pipe Billet → Heating → Punching → Pipe Head Treatment → Annealing →Acid Pickling →

Coating Oil (Copper Plating) → Multi-pass Cold Drawing or Cold Rolling → Pipe Billet → Heat Treatment → Straightening → Hydrostatic Test or Inspection → Marking → Warehousing

Package of carbon steel seamless pipe

Plastic caps plugged at the two sides of pipe ends

Should be avoided by the steel strapping and transport damage

Bundled signs should be uniform and consistent

The same bundle(batch) of steel pipe should be came from the same furnace.

The steel pipe has the same furnace number, the same steel grade, the same specifications.