Specifications
Brand Name :
TOBO/TPCO/TISCO/VALIN/METAL
Model Number :
ASTM / ASME A789 / SA789, A790 / SA790, A928, A450, A530, A999, E263, E309, E426
Certification :
ISO/PED/TUV/SGS/LR/BV
Place of Origin :
China/Japan/Germany
MOQ :
100KGS
Price :
negotiable
Payment Terms :
T/T, L/C, Western Union, MoneyGram
Supply Ability :
1500 tons per month
Delivery Time :
10days->
Packaging Details :
in plastic bags then in bundles
Standard :
ASTM / ASME A789 / SA789, A790 / SA790, A928, A450, A530
Color :
White Silver Gold
Types :
Duplex Stainless Steel Pipe / Tube
Outer Diameter :
6mm-710mm
Description

Duplex Stainless Steel Pipes, Seamless and Welded, ASTM / ASME A789 / SA789, A790 / SA790, A928, A450, A530, A999, E263, E309, E426


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:

  • Eddy Current Testing
  • O.P Testing
  • Radiography Testing
  • Corrosion Testing
  • Micro Testing
  • Macro Testing
  • IGC Testing
  • Ultrasonic testing
  • Liquid Penetrate testing


Seamless and Welded Duplex Stainless Steel Pipe ASTM / ASME A789 / SA789, A790 / SA790Seamless and Welded Duplex Stainless Steel Pipe ASTM / ASME A789 / SA789, A790 / SA790Seamless and Welded Duplex Stainless Steel Pipe ASTM / ASME A789 / SA789, A790 / SA790

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Seamless and Welded Duplex Stainless Steel Pipe ASTM / ASME A789 / SA789, A790 / SA790

Ask Latest Price
Brand Name :
TOBO/TPCO/TISCO/VALIN/METAL
Model Number :
ASTM / ASME A789 / SA789, A790 / SA790, A928, A450, A530, A999, E263, E309, E426
Certification :
ISO/PED/TUV/SGS/LR/BV
Place of Origin :
China/Japan/Germany
MOQ :
100KGS
Price :
negotiable
Contact Supplier
Seamless and Welded Duplex Stainless Steel Pipe ASTM / ASME A789 / SA789, A790 / SA790
Seamless and Welded Duplex Stainless Steel Pipe ASTM / ASME A789 / SA789, A790 / SA790
Seamless and Welded Duplex Stainless Steel Pipe ASTM / ASME A789 / SA789, A790 / SA790
Seamless and Welded Duplex Stainless Steel Pipe ASTM / ASME A789 / SA789, A790 / SA790
Seamless and Welded Duplex Stainless Steel Pipe ASTM / ASME A789 / SA789, A790 / SA790

TOBO STEEL GROUP CHINA

Verified Supplier
11 Years
shanghai, shanghai
Since 1998
Business Type :
Manufacturer, Agent, Importer, Exporter, Trading Company, Seller
Total Annual :
100000-100000000
Employee Number :
200~300
Certification Level :
Verified Supplier
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