Customization: | Available |
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Type: | Round |
Standard: | AISI, ASTM, DIN, JIS, GB |
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ASTM A250M-04 ERW Welded Super Heater Tubes
This specification covered several grades, designated T1, T1a, T1b, T2, T11, T12 and T22, of minimum-wall-thickness,electric-resistance-welded, carbon-molybdenum and chromium-molybdenum alloy steel, boiler and super heater tubes.
OD:12.7 to 127 mm
WT:0.9 to 8.1 mm
Grade:ASTM A250 T1, T1a, T1b, T2, T11, T12, T22
Schedules : 20, 30, 40, Standard (STD), Extra Heavy (XH), 80, 100, 120, 140, 160, XXH & heavier
Length: 5.8, 6, 11.8, 12m, or as needed
Chemical composition
element |
Gr T1 |
Gr T1a |
Gr T1b |
carbon |
0.1-0.2 |
0.15-0.25 |
0.14 |
manganses |
0.3-0.8 |
0.3-0.8 |
0.3-0.8 |
PH |
0.025 |
0.025 |
0.025 |
S |
0.025 |
0.025 |
0.025 |
Si |
0.1-0.5 |
0.1-0.5 |
0.1-0.5 |
Molybdemum |
0.44-0.65 |
0.44-0.35 |
0.44-0.65 |
Mechanical properties
Grade |
T1 |
T1a |
T1b |
Ts MPa |
380 |
415 |
365 |
Ys MPa |
205 |
220 |
195 |
Elongation |
30 |
30 |
30 |
Lead time 10-15 days | 80% of output for export
Shipping Information
FOB Port | Tianjin | ||||
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Weight per Unit | 1500.0 Kilograms | ||||
HTS Code | 7304.41.90 00 | ||||
Export Carton Dimensions L/W/H | 11.8 x 1.0 x 0.8 Meters |
Lead Time | 15-30 days | ||||
---|---|---|---|---|---|
Dimensions per Unit | 11.8 x 1.0 x 0.8 Meters | ||||
Units per Export Carton | 25.0 | ||||
Export Carton Weight | 1500.0 Kilograms |