ASTM A789 Super Duplex Tubing

The ASTM A789 standard covers a range of stainless steel alloys, mainly including austenitic, duplex stainless steel and super austenitic stainless steel. It is particularly suitable for applications that require high strength and corrosion resistance, such as the oil and gas industry, offshore oil platforms, chemical equipment, etc.
GNEE produces ASTM A789 duplex stainless steel pipes in cold rolling and cold drawing, and the delivery state is usually heat treated and pickled.
ASTM A789 duplex stainless cold rolled steel pipes have a wide range of specifications, with outer diameters ranging from 20 to 762 mm and wall thicknesses from 2.0 to 120 mm.

Name	ASTM A789  Super Duplex Stainless Steel Pipe
Material Grade	S31803/S32205 S32750 S32760
Outer Diameter	Seamless Pipe: 4mm-812.80mm
	Welded Pipe: single slit(Φ8mm-Φ630mm); girth(Φ630mm-Φ3000mm),
Thickness	Seamless Pipe: 0.5mm - 60mm
	Welded Pipe: single slit(0.5mm-25mm);girth(3mm-45mm)
Length	5.8-6.1 m or as customers' request
Tolerance	Acording to the Standard.
Test	UT, ET, HT, RT,ect, and others according to the standard,or as the requests of the customers
Certificate	ISO9001-2008,ASME, PED
Delivery Time	3-30Days, Depends on quantity

Why choose GNEE

GNEE is an enterprise dedicated to the research and development and production of precision stainless steel bright tubes, clean pipes (BA, EP) and special alloy pipe series products. It can provide precision steel tubes with various materials and sizes such as austenitic, duplex steel, nickel-based alloys according to national standards GB, ASTM, JIS, DIN, European +-standard EN and other standards.
Contact us now for a free estimate.

Inspection:
PMI Test
Hydraulic Test
Eddy Current Test
Non-Destructive Test
Etc.

Q: How many days can you deliver after confirmed the order?
A: For stock: within 5-7 days;
For customized product: around 30 days;
For special sizes: subject to negotiation.
Q: How does your company do quality control?
A: ISO 9001:2015 certified;
Product certificate as per EN10204 3.1 or 3.2 as per customer's request.
Q: Can I have a factory-visit?
A: Surely. All customers are welcome to visit us in China.