product category |
main material |
implementation standard |
speculation&scope |
usage |
| General structural tubes |
20¡¢35¡¢45 |
GB/T8162-1999 |
¡Ó10-1020¡Á1.5-60 |
for general structure |
| Transporting fluid tubes |
20 |
GB/T8163-1999 |
¡Ó10-630¡Á1.5-50 |
fluid transportation |
| Middle and low-pressure boiler tubes |
20 |
GB3087-1999 |
¡Ó10-630¡Á1.5-55 |
middle and low-pressure boiler tubes, boiled water tubes and smoke tubes for machines |
| High-pressure tubes |
20G¡¢SA106c
ST45.8/3 ¡¢12Cr1MoG¡¢ 15CrMoG |
GB5310-1995
|
¡Ó10-620¡Á1.5-50 |
low-pressure boiler hot-enduring seamless steel tubes |
| Specific fertilizer tubes |
20G¡¢16Mn |
GB6479-1998 |
¡Ó10-630¡Á1.5-50 |
for fertilizer equipments and pipelines |
| Petroleum cracking tubes |
20¡¢20G¡¢
12GrMo¡¢
15GrMo¡¢12Cr1MoG¡¢ 15CrMoG |
GB9948-1998 |
¡Ó10-630¡Á1.5-60 |
stove pipe, heat exchange pipe and pipelines of petroleum factories
|
| Fluid and boiler tubes in large storage |
