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.
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:
Size (mm): O.D.: 20-180 W.T.: 2-30L: max 12000
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 |
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 |
Alloy Steel pipe contains substantial quantities of elements other than carbon such as nickel, chromium, silicon, manganese, tungsten, molybdenum, vanadium and limited amounts of other commonly accepted elements such as manganese, sulfur, silicon, and phosphorous.
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