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ASTM A789 UNS S31803 Duplex Stainless Steel Tubing Seamless Good Weldability

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Address: Room 2117, Building C, Wanda Plaza, NO. 58 Xinhua West Street, Tongzhou District, Beijing, China 101100

Contact name:Yana Dong

Y & G International Trading Company Limited

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ASTM A789 UNS S31803 Duplex Stainless Steel Tubing Seamless Good Weldability

Country/Region	china
City & Province	beijing beijing

Product Details

ASTM A789 UNS S31803 Duplex Seamless Stainless Steel Tube

Supply Ability

Supply Ability:

800 Ton/Tons per Month

Packaging & Delivery

Packaging Details: Bundled by nylon sheet , and put into wooden case.
Other packing as per customer requirement.

Port

Shanghai

Size Range:
Outer Diameter	Tolerance
6~30	0.15/-0.2
>30-50	±0.30
≤50	±0.75%D
Wall Thickness	Tolerance
D≤38	20%/t, -0
D>38	22%/t, -0
Bend	Tolerance
T≤15	1.5mm
T≤15	1.5mm

Chemical Composition(%)(max.):

UNS

Designation

S31803

0.03

2.00

0.03

0.02

1.0

4.5-6.5

21.0-23.0

2.5-3.5

0.08-0.20

Tensile and Hardness Requirements:

UNS Designation

Tensile Strength,

min,Mpa

Yield Strength,

min Mpa

Elongation in 2in,

or 50mm, min,%

Hardness, max

HBW

HRC

S31803

620

450

290

Features:

1.Superior resistance to general and local corrosion, especially to stress corrosion, pitting corrosion, crevice corrosion, corrosion fatigue and abrasion & corrosion.
2.Good weldability
3.Good mechanical properties
4.Excellent intergranular corrosion resistance
5.High cost-effectiveness, long life time

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