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Model No. : | ASTM A268 |
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Brand Name : | TORICH |
Principle : | Mixing Heat Exchanger |
Ningbo, Zhejiang, China
Product description
ASTM A268 Seamless and Welded Ferritic and Martenstic Stainless Steel Tubing for General Service
Brand : TORICH
Standard: ASTM A268
O.D: 12.7-203mm
Normal W.T : 5.1mm
Application : For boiler and heat-exchange
Tolerance of Size
Group Size,O.D in(mm) Permissible Variations in O.D in (mm)
1 up to1/2(12.7) ,excl +/- 0.005(0.13)
1/2 to 1,1/2(12.7 to38.1),excl +/- 0.005(0.13)
2 1,1/2 to 3,1/2 (38.1 to 88.9) excl +/- 0.01 (0.25)
3 3,1/2 to 5,1/2(88.9 to 139.7) excl +/-0.015(0.38)
4 5,1/2 to 8 (139.7 to 203.2) incl +/-0.03(0.76)
Merchanical Testd Required
Tension Tests
Flaring Test ( for seamless tubes)
Flange Test (for welded tubes)
Hardness Test
Reverse Flattening Test
Hydrostatic or Nondestructive Electric Test
SUPPLEMENTARY REQUIREMENTS
Air-Underwater Pressure Test
Additional Testing of Welded Tubing per ASME Request.
Ningbo, Zhejiang, China
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