Bolier steel tube Standard: ASTM / ASME A/SA 179 SA192 Range: 6.35mm OD up to 254mm ... : ASTM A53, ASME SA53, ASTM A106, ASME SA106, ASTM A179, ASME SA179, ASTM A192, ASME SA192, ASTM A210, ASME SA210, ASTM A213, ASME SA213, DIN1629, DIN ... Grade B, A 179, 1 192, ASTM A210-A1, ASME SA210-A1, ASTM A213 -t11, ASME SA213-t11, ASTM A213 -t12, ASME SA213-t12 ...