TOBO STEEL GROUP CHINA
| Payment Terms | L/C, T/T, Western Union |
| Supply Ability | 500 tons per month |
| Delivery Time | 10-100 work days |
| Packaging Details | wooden case |
| Material | Tp304/316/317/321/347/904/32 |
| Size | Size 1/8-72” |
| OD | 6-630mm |
| Colour | natural coliour |
| Technique | Cold Drawing |
| Type | Welded |
| Brand Name | TOBO/TPCO/TISCO/VALIN/METAL |
| Model Number | Duplex Stainless Steel Pipe |
| Certification | ISO/PED/TUV/SGS/LR/BV |
| Place of Origin | China/Japan/Germany |
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Product Specification
| Payment Terms | L/C, T/T, Western Union | Supply Ability | 500 tons per month |
| Delivery Time | 10-100 work days | Packaging Details | wooden case |
| Material | Tp304/316/317/321/347/904/32 | Size | Size 1/8-72” |
| OD | 6-630mm | Colour | natural coliour |
| Technique | Cold Drawing | Type | Welded |
| Brand Name | TOBO/TPCO/TISCO/VALIN/METAL | Model Number | Duplex Stainless Steel Pipe |
| Certification | ISO/PED/TUV/SGS/LR/BV | Place of Origin | China/Japan/Germany |
| High Light | duplex ss pipe ，thin wall stainless steel tubing | ||
Duplex Stainless Steel Pipe Seamless / Welded Austentic Stainless Steel Pipes Size 1/8-72”
Standards: ASTM/ASME A789/SA789, A790/SA790,A450,A530
Material: UNS S31803(Cr22Ni5Mo3/1.4462)/2205,UNS S32750(1.4410),UNS S31500(Cr18NiMo3Si2),
UNS32760(1.4501)
Chemical Composition
| Grade | C max | Si max | Mn max | P max | S max | Cr | Ni | Mo | N |
| UNS S32750 | 0.030 | 0.8 | 1.2 | 0.030 | 0.015 | 24.0-26.0 | 6.0-8.0 | 3.0-5.0 | 0.24-0.32 |
| UNS S31803 | 0.030 | 1.0 | 2.0 | 0.020 | 0.020 | 21.0-23.0 | 4.5-6.5 | 2.5-3.5 | 0.08-0.20 |
| UNS S31500 | 0.030 | 1.0 | 1.2-2.0 | 0.030 | 0.030 | 18.0-19.0 | 4.5-5.5 | 2.5-3.5 | 0.05-0.10 |
Physical Properties
| Grade | Y.S.MPa min | T.S.Mpa min | Elongation % | Hardness HRC |
| UNS S32750 | 550 | 800 | 15 | 20 |
| UNS S31803 | 450 | 620 | 25 | 20 |
| UNS S31500 | 440 | 630 | 30 | 20 |
Duplex Stainless Steel Pipe Application:
Chemical processing, Transport and Storage.
Oil and gas exploration and offshore rigs.
Oil and gas refining.
Marine environments.
Pollution control equipment.
Pulp and paper manufacturing
Chemical process Plant
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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Company Details
Business Type:
Manufacturer,Agent,Importer,Exporter,Trading Company,Seller
Year Established:
1998
Total Annual:
100000-100000000
Employee Number:
200~300
Ecer Certification：
Verified Supplier
TOBO GROUP sales head offce in Shanghai. We are one of the Professional manufacturers Exporter Pipeline products in China .Our company was established in 1998, the plant covers 550, 000 square meters and a construction area ... TOBO GROUP sales head offce in Shanghai. We are one of the Professional manufacturers Exporter Pipeline products in China .Our company was established in 1998, the plant covers 550, 000 square meters and a construction area ...
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