| Classification |
Standards |
Application |
| KS |
JIS |
AISI |
| Pipes for
piping |
Carbon
Steel |
SPPS38/42 |
STPG370/410 |
A53G(A,B) |
for
pressure service |
| SPPH38/49 |
STS370/480 |
A106G(A,B,C) |
for
high pressure
service(350℃ and under) |
| SPHT38/49 |
STPT370/480 |
A106G(A,B,C) |
for
high temperature
service(over 350℃) |
| Alloy
Steel |
SPLT39/70 |
STPL380/690 |
A333G3/G11 |
for
low temperature
service(0℃ and under) |
| SPA12/26 |
STPA12/26 |
A335P1/P22 |
for
high temperature
service |
Stainless
Steel |
STS304TP/
347HTP |
SUS304TP/
347HTP |
TP304/347H |
for
high temperature
and corrosion
resistance pipes |
STS410TP/
430TP |
SUS410TP/
430TP |
TP410/430 |
Tubes
for
boiler &
heat
exchanger |
Carbon
Steel |
STBH340/510 |
STB340/510 |
A179/192 |
for
boiler and
exchanger tubes |
| Alloy
Steel |
STHA12/26 |
STBA12/26 |
A213T5/T22 |
| STLT39/70 |
STBL380/690 |
A334G3/G11 |
for
low temperature
service(0℃ and under) |
Stainless
Steel |
STS304TB/
347HTB |
SUS304TB/
347HTB |
TP304/347H |
for
high temperature
and corrosion
resistance tubes |
STS410TB/
430TB |
SUS410TB/
430TB |
TP410/430 |
Tubes for
machine
&
structural |
Carbon
Steel |
STM-C540/
R830 |
STM-C540/
R830 |
API |
for
drilling tubes |
| STHG11/31 |
STHG11/31 |
A519 |
for
high pressure gas
cylinder |
| SPS290/540 |
STK290/540 |
A500/501 |
for
general structural
purpose tubes |
| STKM11A/
20A |
STKM11A/
20A |
A519 |
for
machine structural
purpose tubes |
Alloy
Steel |
SCr420TK/
SCM440TK |
SCr420TK/
SCM440TK |
A519 |
for
machine purpose
tubes |
Stainless
Steel |
STS304TKA/
347TKA |
SUS304TKA/
347TKA |
MT304/347 |
for
htgh temperature
and corrosion
resistance tubes |
STS410TKA/
430TKA |
SUS410TKA/
430TKA |
MT410/430 |
