SIZE
1) Outside diameter: 20 - 1,066.8mm
2) Thickness: 1 - 80mm

STANDARD
ASTM A213  
ASTM A335
JIS G345 (STPA 12/ 20/ 22/ 23/ 24/ 25/ 26)
JIS G3462 Alloy Steel for Boiler and Heat Exchanger Tubes (STBA12/ 13/ 20/ 22)
JIS G3467 Steel Tubes for Fired Heater (STF 410/STFA 12/ 22/ 23/ 24/ 25/ 26)
DIN17175-79Electrical Resistance Or Induction Welded Steel Tubes for Elevated Temperature

GRADE
Cr5Mo (STFA25 STPA25 STBA25 T5 P5)
15CrMo (STFA22 STPA22 STBA22 T12 P12)
1.25Cr0.5Mo (STFA23 STPA23 STBA23 T11 P11)
Cr9Mo (STFA26 STPA26 STBA26 T9 P9)
12Cr1MoV
12Cr2Mo (10CrMo910 T22 P22)
10Cr9Mo1VNb T91 (P91)
12Cr2MoWVTiB (R102)