QUALITY ASSURANCE

ASTM A519-89ASME SA519


OD(mm)

Wall Thickness Unit(mm)


2

2.5

3

3.5

4

4.5

5

6

6.5-7

7.5-8

8.5-9

9.5-10

11

12

Φ25-Φ28









Φ32









Φ34-Φ36









Φ38









Φ40










Φ42










Φ45









Φ48-Φ60








Φ63.5








Φ68-Φ73









Φ76





Φ80





Φ83





Φ89





Φ95





Φ102





Φ108





Φ114






Φ121






Φ127






Φ133






Φ140







Φ146







Φ152







Φ159







Φ168








Grade and Chemical Composition (%)

Grade

C

Mn

P≤

S≤

Si

Cr

Mo

1008

≤0.10

0.30-0.50

0.040

0.050

-

-

-

1010

0.08-0.13

0.30-0.60

0.040

0.050

-

-

-

1018

0.15-0.20

0.60-0.90

0.040

0.050

-

-

-

1020

0.18-0.23

0.30-0.60

0.040

0.050

-

-

-

1025

0.22-0.28

0.30-0.60

0.040

0.050

-

-

-

1026

0.22-0.28

0.60-0.90

0.040

0.050

-

-

-

4130

0.28-0.33

0.40-0.60

0.040

0.050

0.15-0.35

0.80-1.10

0.15-0.25

4140

0.38-0.43

0.75-1.00

0.040

0.050

0.15-0.35

0.80-1.10

0.15-0.25


Mechanical Properties

Grade

Condition

MPa Tenslle Point

Yield Point

Elongation

1020

CW

≥414

≥483

≥5%


SR

≥345

≥448

≥10%


A

≥193

≥331

≥30%


N

≥234

≥379

≥22%

1025

CW

≥448

≥517

≥5%


SR

≥379

≥483

≥8%


A

≥207

≥365

≥25%


N

≥248

≥379

≥22%

4130

SR

≥586

≥724

≥10%


A

≥379

≥517

≥30%


N

≥414

≥621

≥20%

4140

SR

≥689

≥855

≥10%


A

≥414

≥552

≥25%


N

≥621

≥855

≥20%