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ASTM A519-89/ASME SA519 Material comparison tables
Seamless mechanical tubing is manufactured from carbon and alloy steels for structural or other mechanical purposes involving machining or heat treating, where close tolerances, smooth finish, or definite physical properties are important factors.
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Scope

1.1 this specification covers several frades of carbon and alloy steel seamless mechanical tubing. The frades anr listed in Tables 1, 2, and 3. When welding is used for joining the weldable mechanical tube grades, the welding procedure shall be suitable for the frade, the condition of the components, and the intended service.

1.2 This specification covers both seamless hot-finished emchanical tubing and seamless cold-finished mechanical tubing in sizes up to and including 12 3/4 in.(322.8mm) outside diameter of rround tubes with wall thicknesses as required.

1.3 The tubes shall be furnished in the following shapes, as specified by the purchaser:round, square, rectagular, and special sections.

1.4 Supplementary requirements of an optional nature are provided and when desired shall be so stated in the order.

1.5 The values stated in inch-pround units are to be regarded as the standard.

Application:

· For mechanical engineering.

· For mechanical and pressure use,and also for transporting steam,water,gas and etc.

Size (mm): O.D.: 20-180 W.T.: 2-30L: max 12000

JIS Number and Corrensponding Foreign Standards

JIS

ASTM

BS

DIN

NF

ISO

Index Number

Standard Number

Grade

Tupe

Standard Number

Grade

Tupe

Standard Number

Grade

Tupe

Standard Number

Grade

Tupe

Standard Number

Grade

Tupe

Standard Number

Grade

Tupe

G3445

STKM11A

C

A512

MT1010

C

1717

ERWC1

C

2391

St30Si

C




3304

R28

C

C017




A513

MT1010

C





St30A1

C




3305

"

C











2393

St28

C




3306

"

C












RSt28

C

















2394

St28

C


















USt28

C


















RSt28

C









STKM12A

C

A512

MT1015

C

1717

ERWC2

C

2391

St37-2





3304

R33

C





A513

MT1015

C

6323

HFS3

C


RSt37-2





3305

"

"



STKM12B

C

A512

MT1015

C




2394

St37-2





3306

"

"





A513

MT1015

C





Ust38-2












A519

MT1015

C





RSt-2










STKM12C

C




1717

CEWC2

C




A49-322

TU37b

C











"

CFSC3

C




A49-327

TU37b

C











6323

CFS3

C

















"

CFS3A

C












STKM13A

C

A312

MT1020

C

1717

ERWC3

C

2391

St45

C

A49-324

TU37b

C

2937

TS4

C





A513

MT1020

C




2393

St44-2

C

A49-330

TU37b

C

3304

R37

"











2394

St44-2

C

A49-343

TU38b

C

3305

"

"



STKM13B

C

A513

MT1020

C










3306

"

"



STKM13C

C




1717

CEWC3

C

















"

CFSC4

C

















6323

CFS4

C












STKM14A

C

A513

MT1020

C

6323

HFS4

C







2937

TS9

C

















3304

R42

"



STKM14B

C




6323

HFS5

C







3305

R42

C



STMK14C

C













3306

"

"



STKM15A

C

A513

1030

C

















A519

1030

C















STKM15C



















STKM16A

C

A519

1040

C







A49-311

TUXC35

C

















A49-312

TUXC35

C






STKM16C

C


















STKM17A

C

A519

1050

C

6323

HFS8

C












STKM17C

C




6323

CFS8

C












STKM18A

C

A519

1518

C

1717

ERWC5

C




A49-310

TU52b

C

















A49-311

TU52b

C

















A49-312

TU52b

C






STKM18B

C










A49-321

TU52b

C

















A49-323

TU52b

C

















A49-326

TU52b

C






STKM18C

C










A49-330

TU52b

C

















A49-341

TS42a

C

















"

TS47a

C

















A49-343

TS18M5

C






STKM19A

C

A519

1524

C




2391

ST52

C




2937

TS18

C











2393

ST52-3

C




2938

Gr.1

C











2394

ST52-3

C




3304

R50

C

















3305

R50

C

















3306

R50

C



STKM20A

C

















JIS Number and Corrensponding Foreign Standards

JIS

ASTM

BS

DIN

NF

ISO

Index Number

Standard Number

Grade

Tupe

Standard Number

Grade

Tupe

Standard Number

Grade

Tupe

Standard Number

Grade

Tupe

Standard Number

Grade

Tupe

Standard Number

Grade

Tupe

G3441

SCr420TK

Cr
















C018


SCM415TK

CrMo


















SCM418TK

CrMo




6323

CFS10

CrMo












SCM420TK

CrMo

A519

5120

CrMo















SCM430TK

CrMo

A519

4130

CrMo















SCM435TK

CrMo

A519

4135

CrMo















SCM440TK

CrMo

A519

4140

CrMo

6323

CFS10

CrMo











 


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