TOBO STEEL GROUP CHINA
| Payment Terms | T/T, L/C, Western Union, MoneyGram |
| Supply Ability | 6000TONS/MONTH |
| Delivery Time | According to the qty |
| Packaging Details | in plastic bags then in bundles |
| Standard: | ASTM A790 |
| Color | white Silver gold |
| Types: | Duplex Stainless Steel Pipe |
| Material Grade | UNS S32750 S32760 |
| Outer Diameter | 6mm-710mm |
| Brand Name | TOBO/TPCO/TISCO/VALIN/METAL |
| Model Number | ASTM A790 UNS32750 S32760 |
| Certification | ISO/PED/TUV/SGS/LR/BV |
| Place of Origin | China/Japan/Germany |
View Detail Information
Explore similar products
Super Duplex Pipes SS Seamless Tube A789 A790 Gas and Fluid Industry
High Pressure Metal Braided Hose SS304 Stainless Steel Flexible Pipe/Hose/Tube~
ASTM Welded Stainless Steel A312 Sch40 Tubing Pipe For Building Material
Seamless Stainless Steel Pipe Round Section 10mm 304 steel pipe
Product Specification
| Payment Terms | T/T, L/C, Western Union, MoneyGram | Supply Ability | 6000TONS/MONTH |
| Delivery Time | According to the qty | Packaging Details | in plastic bags then in bundles |
| Standard: | ASTM A790 | Color | white Silver gold |
| Types: | Duplex Stainless Steel Pipe | Material Grade | UNS S32750 S32760 |
| Outer Diameter | 6mm-710mm | Brand Name | TOBO/TPCO/TISCO/VALIN/METAL |
| Model Number | ASTM A790 UNS32750 S32760 | Certification | ISO/PED/TUV/SGS/LR/BV |
| Place of Origin | China/Japan/Germany | ||
| High Light | super duplex stainless steel pipe ，duplex ss pipe | ||
UNS S32750 Super Duplex Stainless Steel Pipe ASTM A789 ASTM A790 ASTM A213
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)
ASTM A790 covers seamless and straight-seam welded ferritic/austenitic duplex stainless steel pipe for general corrosive service, with particular emphasis on resistance to stress corrosion cracking. The pipe shall be made by the seamless or an automatic welding process, with no addition of filler metal in the welding operation. Heat analysis shall be made to determine the percentages of the elements specified. Tension tests, hardening tests, flattening tests, hydrostatic test and nondestructive electric tests shall be made to conform to the specified requirements.
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:
Radiography Testing |
Macro Testing |
Liquid Penetrate testing |
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 ...
Get in touch with us
Leave a Message, we will call you back quickly!