alloy seamless tube astm a213 t22 2) OD 19.05-508mm WT: 1-60mm 3) ASTM , DIN, JIS, EN, API Standard 4) SGS ASTM A213 /SAME SA213 T22 alloy steel pipe alloy seamless tube astm a213 t22Product Description1. ASTM A213 T22 seamless boiler steel tube 2. Standard&material: ASTM A213 T22, ASTM A335 P22Standard: ASTM A213/ASME SA213 Steel grade: T2, T11, T12, T22, T91, T92 Size: OD (10-127mm) x WT (1.2- ...