Share to
ASTM A250/250M, ASME SA-250/SA-250M
Still deciding? Get samples first, Contact US !
ASTM A250/250M, ASME SA-250/SA-250M
Still deciding? Get samples first, Contact US !
Products Category
Tag list
- Description
-
Product Description
ASTM A250/250M,ASME SA-250/SA-250M tubes are ferritic alloy steel welded boiler and superheater tubes, which can be formed by bending, crimping, and similar processes, and are also suitable for welding operations, and are manufactured by resistance welding process.
Product Size
Outside diameter: 12.7mm～127mm outside diameter
Minimum wall thickness: 0.9～8.1mm
End: Flat end, bevel for option
Length: 3 to 12 meters or SRL, DRL, double and fixed feet.Packaging
Outer surface with clear/black paint, bundled with steel straps
Chemical composition
Grades Chemical composition,≤(except for the indicated range), % C Mn P S si Ni Cr Mo V T1 0.10-0.20 0.30-0.80 0.025 0.025 0.10-0.50 0.44-0.65 T1a 0.10-0.25 0.30-0.80 0.025 0.025 0.10-0.50 0.44-0.65 T1b 0.14 0.30-0.80 0.025 0.025 0.10-0.50 0.44-0.65 T2 0.10-0.20 0.30-0.61 0.025 0.020 0.10-0.30 0.50-0.81 0.44-0.65 T11 0.05-0.15 0.30-0.60 0.025 0.020 0.50-1.00 1.00-1.50 0.44-0.65 T12 0.05-0.15 0.30-0.61 0.030 0.020 0.50 0.80-1.25 0.44-0.65 T22 0.15 0.30-0.60 0.025 0.020 0.50 1.90-2.60 0.87-1.13 Mechanical performance
Grades Tensile strength ≥ ksi [MPa] Yield strength ≥ ksi [MPa] Elongation ≥ %A Hardness ≤ Brinell,HBW
Wall thickness≥5.1mmRockwell,HRB
Wall thickness＜5.1mmT1 55[380] 30[205] 30 146 80 T1a 60[415] 32[220] 30 153 81 T1b 53[365] 28[195] 30 137 77 T2 60[415] 30[205] 30 163 85 T11 60[415] 30[205] 30 163 85 T12 60[415] 32[220] 30 163 85 T22 60[415] 30[205] 30 163 85 A: See standards for details. Application range
Typically used in the construction of the thinnest walled ferritic alloy steel boilers, superheaters and heat exchangers.
Related Products
Website Map
Contact Us
Yantai Pipe industry Co., Ltd.,
E-mail: info@yantaipipe.cn
WhatsApp: 8615653819370
Tel: 0086-535-6281117
Add: No. 161 Changjiang Road, FTZ, Yantai , China