ASTM A790 Uns S31803 (00Cr17Ni11Nb) Duplex Stainless Steel Pipe 1" Sch40, Fluid Transport, GB13296-91 Compliant

• Customization: Available
• Application: Automotive Industry, Chemical Industry, Food Industry, Oil and Gas Industry, Pharmaceutical Industry
• Certification: CE, ISO9001
• Model NO.: ASTM A213 ASTM A790 ASTM A321 ASTM A269
• Length: 100 feet
• Material: Duplex Stainless Steel
• Outer Diameter: 8 inch
• Type: Seamless Pipe
• Wall Thickness: Schedule 40
• Standard Specifications: En10216-5 DIN2391 ASTM A240 A213
• Steel Grades: 304L/H/Ln 316L/H/Ln, P195gh, P235gh, P265gh
• Main Process: Cold-Formed Seamless
• Unit Leagth: 5m-12m
• Od: 6mm-530mm
• Wt: 1mm-40mm
• Supplementary Technology: Plain or Threaded with Socket or Beveled with Cpas
• Ends: Plain Ends
• Package: Packed by Bundles, Plastic Bags, Wooden Case, etc
• Delivery: 7-35 Days
• Surface: Pickled, Bright Annealed, Polished
• Application 1: Pipeline Transport, Boiler Pipe, Hydraulic/Automob
• Application 2: Electronics, Industrial, Food, Boiler, Condenser
• Application 3: Oil & Gas Transport, Power Station
• Application 4: Oil & Gas & Milk Transportation, Heat Exchanger
• Transport Package: Seaworthy Package
• Specification: DN6mm-16mm
• Trademark: EZS
• Origin: China
• Production Capacity: 500000/Year

Product Description

Product Description

ASTM A790 UNS S31803 (00Cr17Ni11Nb) Duplex Stainless Steel Pipe 1" Sch40, Fluid Transport, GB13296-91 Compliant

Product name	Seamless Stainless Steel Tube
Standard	ASTM GB JIS EN DIN
Grade	ASTM A213/A312/A268/A269/A790 EN10213/10305, JIS3459  DIN17456/17458
Length	5.8m 6m Fixed, 12m Fixed, 2-12m Random
Place of Origin	China
Outside Diameter	1/2'--24'
	21.3mm-609.6mm
Technique	1/2'--6': hot piercing processing technique
	6'--24' : hot extrusion processing technique
Usage /Application	Oil pipe line, Drill pipe, Hydraulic pipe, Gas pipe, Fluid pipe, Boiler pipe,Conduit pipe, Scaffolding pipe pharmaceutical and ship building etc.
Tolerance	±1%
Processing Service	Bending, Welding, Decoiling, Cutting, Punching
Delivery Time	15-20 days
Material	TP 304/304L, 316/316L, 321/321H, 310S/317H/410/409 S31803/S32205/S31500/S32750
End	Bevel end(>2"), Plain (≤2"),with plastic cap, with screwed and socket
Surface	Black Painted, Galvanized, Natural, Anticorrosive 3PE coated,polyurethane foam Insulation
Packing	Standard Sea-worthy Packing
Delivery Term	CFR CIF FOB

 

SUS 304TB	0.08 max.	1.00 max.	2.00max.	0.040 max.	0.030 max.	8.00~11.00	18.00~20.00	-
SUS 304HTB	0.04~0.10	0.75 max.	2.00max.	0.040 max.	0.030 max.	8.00~11.00	18.00~20.00	-
SUS 304LTB	0.030 max.	1.00 max.	2.00max.	0.040 max.	0.030 max.	9.00~13.00	18.00~20.00	-
SUS 309STB	0.15 max.	1.00 max.	2.00max.	0.040 max.	0.030 max.	12.00~15.00	22.00~24.00	-
SUS 310TB	0.08 max	1.00 max.	2.00max.	0.040 max.	0.030 max.	12.00~15.00	22.00~24.00	-
SUS 310STB	0.15 max.	1.50 max.	2.00max.	0.040 max.	0.030 max.	19.00~22.00	24.00~26.00	-
SUS 316TB	0.08 max.	1.50 max.	2.00max.	0.040 max.	0.030 max.	19.00~22.00	24.00~26.00	-
SUS 316HTB	0.08 max.	1.00 max.	2.00max.	0.040 max.	0.030 max.	10.00~14.00	16.00~18.00	2.00~3.00
SUS 316LTB	0.04~0.10	0.75 max.	2.00max.	0.040 max.	0.030 max.	11.00~14.00	16.00~18.00	2.00~3.00
SUS 316TiTB	0.030 max.	1.00 max.	2.00max.	0.040 max.	0.030 max.	12.00~16.00	16.00~18.00	2.00~3.00

 

Product Details:

1. Product Overview

Our ASTM A790 UNS S31803 (00Cr17Ni11Nb) duplex stainless steel pipes are engineered for high-corrosion resistance and superior strength in aggressive fluid transport applications. These pipes are ideal for chemical processing, oil & gas, seawater cooling, and high-pressure HVAC systems, offering twice the yield strength of standard 304/316 stainless steel with excellent weldability.

2. Key Features & Benefits

 Superior Corrosion Resistance - Resists pitting, chloride stress corrosion cracking (SCC), and acidic/alkaline fluids.
 High Mechanical Strength - 2X stronger than austenitic stainless steels (Grade 304/316), reducing material thickness needs.
 Fluid Transport Optimized - Smooth inner surface minimizes friction and buildup in liquid/gas applications.
 Dual Certification - Complies with ASTM A790 (U.S. standard) and GB13296-91 (Chinese standard) for global compatibility.
 Temperature Resilience - Performs in -50°C to 300°C (-58°F to 572°F) ranges.

3. Specifications

• Standard: ASTM A790 / GB13296-91

• Grade: UNS S31803 (00Cr17Ni11Nb)

• Size: 1" NB (Nominal Bore), Schedule 40

• Type: Seamless (S) or Welded (W) - Specify when ordering

• Wall Thickness: ~3.38mm (per ASME B36.10)

• Pressure Rating: Suitable for PN20/Class 150 systems

4. Applications

• Oil & Gas: Subsea pipelines, risers, hydraulic systems.

• Chemical Plants: Acid/alkali fluid transfer, heat exchangers.

• HVAC & Power: Cooling water systems, condenser tubes.

• Desalination & Marine: Seawater intake/discharge pipes.

5. Why Choose Our Pipes?

• Third-party tested for chemical composition and mechanical properties.

• Custom lengths (6m, 12m), beveled ends, and NDE (RT/UT) available.

• Competitive pricing with bulk order discounts.

 

Detailed Photos

 

 

Packaging & Shipping

Our Advantages

Certifications

 

 

FAQ

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.

Q: Can I have a trial order?
A: Of course, it is an honor for us to have the opportunity to show our quality and service. 
 

Company Profile

	Business Type:	Manufacturer/Factory
	Main Products:	Carbon Steel Pipe , Stainless Steel Pipe , Copper Nickel Tube , Heat Exchanger Tube , Boiler ...
	Registered Capital:	2000000 RMB
	Plant Area:	>2000 square meters
	Management System Certification:	ISO 9001, ISO 14001, OHSAS/ OHSMS 18001, ANSI/ESD
	Average Lead Time:	Peak Season Lead Time: 1-3 months Off Season Lead Time: within 15 workdays

SGS Serial NO. :

QIP-ASI199413Report Verification

EZ STEEL INDUSTRIAL Co., Ltd, together with LONG-RUN METALS Co., Ltd, is the export division and window company of EZ STEEL GROUP, which was founded in 1996 and has been committed to the development and manufacturing of industrial tubes in the past 20 years. It is one of the largest steel tube manufacturing enterprise groups in China. The group possess fixed assets over 200million and more than 800 employees with annual production capacity over 300 thousand tons.

The company has continuously introduced the world advanced manufacturing equipment and now is able to produce welded and seamless steel tube, copper tube and nickle alloy tube. We also have our own coating facilities and workshops for further processing. After years of development, EZ STEEL GROUP and the affiliated enterprises have obtained many kinds of domestic and international certifications including ISO 9001 Quality Management System Certification, ISO14000 Environment Management System Certification, CE, License for Manufacture of Pressure Piping in China, etc. The company has obtained good domestic achievements and is the nominated supplier of CNPC and CNOOC. The product are exported to Southeast Asia, the Middle East and Africa, Europe, Australia, North and Latin Americas via trade companies, and are widely used in pipeline works, foundation works, steel structure works, boiler and condenser fabrication, oil refinery plant, power plant, sugar-making plant, ship-building and offshore construction projects etc.

Holding the concept of First-class Brand, First-class Service, First-class Value, EZ STEEL GROUP is aiming to build up a win-win enterprise platform for both our customers and employees.

CONTACT US
Contact: Rosy Xu
EZ STEEL INDUSTRIAL CO., LTD
Add: No.199,  Xiangfu
Road, Yuhua Industrial zone, Changsha City , P.R China 

Pls. do not hesitate to contact me if you have any questions!

You are warm welcomed to visit our factory!!!

Thank you for visiting our products & Looking forward to hearing from you!