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ASTM A519 PIPE

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ALLOY PIPES

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ASTM A519 / A519M, ASME SA519 / SA519M is the standard applicable to seamless carbon and alloy steel mechanical tubes.

ASTM A519 covers several grades of carbon and alloy steel seamless mechanical tubing.

ASTM A519 covers both seamless hot-finished mechanical tubing and seamless cold-finished mechanical tubing in sizes up to 12 3⁄4 in. (323.8 mm) outside diameter for round tubes with wall thicknesses as required.

ASTM A519 Gr.4130 and Gr.4140 seamless tubing Chemical Composition (%):

Grade

C

Mn

P

S

Si

Cr

Mo

4130

0.28-0.33

0.4-0.6

0.04 max

0.04 max

0.15-0.35

0.80-1.10

0.15-0.25

4140

0.38-0.43

0.75-1.00

0.04 max

0.04 max

0.15-0.35

0.80-1.10

0.15-0.25

ASTM A519 GR.4130 and Gr.4140 Seamless tubing Mechanical Properties:

Grade Designation

Conditional

Ultimate strength

yield strength

Elongation in 2in. Or 50mm, %

Rockwell, Hardness B scale

ksi

Mpa

ksi

Mpa

4130

HR

90

621

70

483

20

89

SR

105

724

85

586

10

95

A

75

517

55

379

30

81

N

90

621

60

414

20

89

4140

HR

120

855

90

621

15

100

SR

120

855

100

689

10

100

A

80

552

60

414

25

85

N

120

855

90

621

20

100

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A519 Gr.4130 a Gr.4140 Mechanical tubing Outside Diameter Tolerances for round Hot-Finished Tubing:

Outside Diameter Tolerances for Round Hot-Finished Tubing A, B, C

Outside Diameter Size Range,

Outside Diameter Tolerance, in. (mm)

In. (mm)

Over (+)

Under (-)

up to 2.999 (76.17)

0.020 (0.51)

0.020 (0.51)

3.000-4.499 (76.20-114.27)

0.025 (0.64)

0.025 (0.64)

4.500–5.999 (114.30–152.37)

0.031 (0.79)

0.031 (0.79)

6.000–7.499 (152.40–190.47)

0.037 (0.94)

0.037 (0.94)

7.500–8.999 (190.50–228.57)

0.045 (1.14)

0.045 (1.14)

 

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