Seamless alloy steel raj thiab kav dej, tshwj xeeb tshaj yog cov qauv ASTM A213, yog dav siv rau boilers, tshav kub exchangers, siab siab, superheaters, thiab reheaters. Vim seamless alloy steel hlab 'hardness thiab mechanical khoom, lawv yog siutable rau siab kub thiab siab kub. ASTM A213 Txuj yog Seamless Ferritic thiab Austenitic Alloy-steel Boiler, Superheater, thiab Kub-Exchanger raj.
Ib sab ntawm cov yeeb nkab steel hlau, ASTM A213 kuj suav nrog cov raj tsis muaj steel, uas kuj tau siv dav rau boilers, kub exchangers, thiab condensers.
| KHOOM NPE | STANDARD | QIB | SIZE RANGE OD. | Siv |
| Seamless Alloy Steel Boiler, Superheater thiab Kub Exchanger Tubes | ASME / ASTM SA / A213 | T11, T12, T2, T22, T23, T5, T5b, T9, T91 | 19.05mm txog 114.3mm | Kub Exchanger, Condenser thiab Boilers |
| ASME/ASTM SA/A209 | T1 | 19.05mm txog 114.3mm | Superheater | |
| DIN17175 | 15Mo3, 13CrMo44, 10CrMo910, 12CrMo195 | 19.05mm txog 1200mm | Kub Kub thiab Siab Siab Boiler | |
| Seamless Alloy Steel Yeeb Nkab rau Kev Kub Kub Kub | GB/T 5310 | 16Mo, 12CrMo, 12Cr1MoV, Cr2Mo, 10MoWVNb, Cr5Mo | 19.05mm txog 1200mm | Kub Kub thiab Kub Siab Boiler, Economizer, Re-Heater, Superheater thiab Chav Pipeline ntawm Boilers |
| ASME / ASTM SA / A335 | P11, P12, P2, P22, P23, P5, P9, P91 | 114.3mm txog 1200mm |
