| Spec: | ASTM A213/A213M-2013 ， ASME SA213/SA213M-2013 ， A789 ， SA789 | Material: | TP304/304L ， TP316L ， TP310S， TP316Ti， TP321/321H ， TP347 ， TP317 |
|---|---|---|---|
| Type: | Straight Tube ， U Bend Tube， Coil Tube | Surface: | Bright Annealed， Pickled And Annealed ， Polished |
| Package: | PLY-WOODEN CASE | ||
| High Light: | seamless stainless steel tube， seamless boiler tubes | ||
Alloy Steel Seamless Tubes A213 T11 T12 T22 Boiler Tube Minimum Wall Thickness
ASTM A213 ASME SA213 standard T22 material Alloy steel seamless boiler tube， also called CDS tube， is made from the hot billets by piercing， subsequent rolling， and elongating process to be passed through the die over a mandrel plug and finally to reach the designed accurate diameter and wall thickness. Cold Drawn Seamless (CDS) manufacturing process can greatly increase the strength of the and makes it very suitable for critical high safety and high performance applications. WAN Steel brand cold drawn are made of high quality raw material by automatic production line with strict quality control. Our CDS tubes have high dimensional tolerances， excellent section features， better surface finish and higher mechanical properties than the corresponding grades of hot finished seamless steel tubes.WAN Steel manufactures and wholesales many types of cold drawn seamless tube available for mechanical and hydraulic applications.
Specification:
ASME SA213/A213: Standard Specification for Seamless Ferritic and Austenitic Alloy-
Steel Boiler， Superheater and Stainless Steel Heat Exchanger Tubes.
ASTM A249 / A249M:Standard Specification for Welded Austenitic Steel Boiler， Superheater
Heat-Exchanger， and Condenser Tubes.
ASTM A789/A789M， ASME SA789/SA789M Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service
Other Standard:DIN 17456 ， DIN 17458， EN10216-5， GOST 9940-81， GOST 9941-81， JIS-G3463，…
Material Grade:
Size Range:
| Production | Outside Diameter | Wall Thickness |
| Heat Exchanger Tube | 6.00mm to 101.6mm | 0.5mm to 8mm |
Final Finishing
Solution Annealed & Pickled/Bright Annealed.
Type of Tubes:
U-bend & Straight.
Some of the quality tests carried out by us includes:
| Corrosion Test | Conducted only when specially requested by the client |
| Chemical Analysis | Test done as per required quality standards |
| Destructive / Mechanical Testing | Tensile | Hardness | Flattening | Flare | Flange |
| Reverse-bend and Re. flat tests | Carried out in full compliance with relevant standards & ASTM A-450 and A-530 norms， which ensures trouble-free expansion， welding & use at customers end |
| Eddy Current Testing | Done to detect homogeneities in subsurface by using Digital Flaw-mark Testing System |
| Hydrostatic Testing | 100% Hydrostatic Testing carried out according to ASTM-A 450 norms for checking tube leakage， and biggest pressure we can support 20Mpa/7s . |
| Air Under Pressure Test | To check any evidence of air leakage |
| Visual Inspection | After passivation， every single length of tubes & pipes is subjected to thorough visual inspection by trained staff for detecting surface flaws & other imperfections |
Supplementary Testing : Apart from the above mentioned tests， we also carry out on the manufactured products supplementary testing. The tests conducted under this include:
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