ASTM A790 S32205 Seamless Stainless Steel Pipe for Heat Exchanger

• Customization: Available
• Application: Chemical Industry, Construction Industry, Oil and Gas Industry, Water Treatment Plants, Marine and Offshore Applications
• Certification: CE, ISO9001, SGS, TUV
• Model NO.: Seamless tube
• Elongation: ≥35
• Length: Custom Length
• Outer Diameter: DN6 ~ DN500
• Schedule: ASTM A790 /SA790m
• tensile strength: ≥415MPa
• Wall Thickness: Sch5s-Sch160, Xs,Xxs/Custom
• Size: 1/8"-20", DN6-DN500
• Grade: Uns31803/32750/32250, etc.
• Thickness: Sch5-Sch160
• Shape: Round/Customized
• Process: Cold Drawn
• Tolerance: +/-5%
• End: Plain End/Bevel End
• Usage: Heat Exchangers, Condensers, and Similar Heat Tran
• Test: BV, SGS Is Available
• Stock: Size Can Customized
• Processing: Cold Drawn
• Packing: Standard Export Packing
• Delivery Time: 7-30 Days
• MOQ: 1 Ton
• Transport Package: Woven Bag/Wooden Case
• Specification: SCH 5S-SCH160
• Trademark: EZS
• Origin: China
• HS Code: 730441
• Production Capacity: 10000 Ton/Year

Product Description

ASTM A790/A790M-24:Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe

Application for Boiler, Superheater, Heat-Exchanger, and Condenser Tubes Standard Specification for Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes

Economic Advantages of ASTM A790/A790M Products: Lower Total Cost of Ownership (TCO)
 The economic benefits of ASTM A790/A790M duplex stainless steel pipes are not limited to the initial procurement stage. Instead, they achieve a significantly lower Total Cost of Ownership (TCO) compared to conventional stainless steel (e.g., 316L) and carbon steel pipes by extending service life, simplifying installation, and eliminating additional treatments.

Specification

Main Grades

Ferritic/Austenitic Duplex Stainless Steel

-Standard Duplex Grades
1. UNS S31803 (2205 / 1.4462)
2. UNS S32205 (2205 Improved / 1.4462)
3. UNS S31500 (3RE60 / 1.4424)
4. UNS S32550 (Ferralium 255)
5. UNS S31200 (AISI 312 / 1.4460)

-Super Duplex Grades
1. UNS S32750 (2507 / 1.4410)
2. UNS S32760 (Zeron 100 / 1.4501)
3. UNS S32906
4. UNS S39277

-Lean Duplex Grades
1. UNS S32304 (2304 / 1.4362)
2. UNS S32101 (LDX 2101 / 1.4162)
3. UNS S32003 (Alloy 2003)

-The other material
1. UNS S31260 (Uranus 52)
2. UNS S32900
3. UNS S32950
4. UNS S32520

Ordering Information

Purchasers must specify:  
- Quantity (length, number of pieces)  
- Material grade (e.g., UNS31803, UNS32750, UNS32250, etc.)  
- Dimensions (OD, wall thickness)  
- Condition (e.g., annealed, cold-worked)  
- Test requirements (hydrostatic/nondestructive testing)  
- Certification or inspection needs  
- Any additional requirements (e.g., special tolerances)

Inspection

Package

Loading and delivery

Technical Specifications

Manufacturing & Heat Treatment
- Tubes are seamless, made by hot-working or cold-working.  
- Heat treatment (e.g., austenitic grades are solution-annealed; ferritic grades are normalized and tempered).

Chemical Composition & Mechanical Properties   - ASTM A790 / ASME SA790 Duplex Stainless Steel Pipe
1. Chemical Composition (wt%, max. unless range is given)
UNS Grade	C	Mn	P	S	Si	Cr	Ni	Mo	N
S31200	0.03	2.0	0.045	0.030	1.0	24.0–26.0	5.5–6.5	1.2–2.0	0.14–0.20
S31260	0.03	1.0	0.030	0.030	0.75	24.0–26.0	5.5–7.5	2.5–3.5	0.10–0.30
S31500	0.03	1.2–2.0	0.030	0.030	1.0	18.0–20.0	4.0–6.0	2.5–3.0	0.05–0.20
S31803	0.03	2.0	0.030	0.020	1.0	21.0–23.0	4.5–6.5	2.5–3.5	0.08–0.20
S32205	0.03	2.0	0.030	0.020	1.0	22.0–23.0	4.5–6.5	3.0–3.5	0.14–0.20
S32304	0.03	2.5	0.045	0.030	1.0	21.5–24.5	3.0–5.5	0.05–0.60	0.05–0.20
S32550	0.04	1.5	0.030	0.030	1.0	24.0–27.0	4.5–6.5	2.9–3.9	0.10–0.25
S32750	0.03	1.2	0.035	0.020	0.8	24.0–26.0	6.0–8.0	3.0–5.0	0.24–0.32
S32760	0.03	1.0	0.030	0.010	1.0	24.0–26.0	6.0–8.0	3.0–4.0	0.20–0.30
S32900	0.08	1.0	0.030	0.030	0.75	23.0–28.0	2.0–5.0	1.0–3.0	0.02–0.20
S32906	0.03	1.0	0.030	0.020	0.8	27.0–29.0	4.5–6.5	3.5–4.5	0.20–0.30
2. Mechanical Properties (Solution Annealed Condition, min. required)
UNS Grade	Tensile Strength (MPa)		Yield Strength (MPa)	Hardness (HRB max)
S31200	690		450	100
S31260	690		450	100
S31500	655		415	96
S31803	620		450	100
S32205	655		485	100
S32304	690		450	100
S32550	760		550	103
S32750	800		550	105
S32760	750		550	105
S32900	620		450	100
S32906	790		580	105
3. Delivery Condition (per ASTM A790) Condition: Solution Annealed (SA) at 1020–1150°C & rapidly cooled (water quenched), pickled and passivated in accordance with ASTM A790 Table 1.
Inspection & Testing Requirements - Hydrostatic testing (mandatory, unless replaced by nondestructive testing).   - Nondestructive testing (NDT) (eddy current, ultrasonic, or pneumatic).   - Flattening, flare, or bend tests (if specified).   - Grain size verification for H-grades.   - Intergranular corrosion test (for austenitic grades, if required).

Typical Applications

Usage: Suitable for

Anti-Corrosion for Marine Desulfurization System

Corrosion-resistant piping systems 
Chemical processing and petrochemical plants 
Food and beverage processing equipment 
Marine and offshore applications 
Water treatment and seawater piping 
Heat exchangers and boilers 
General process piping 

Product usage photos as below:

After Sales Service

Standard Warranty: 36 months.
Extended Warranty: Optional coverage up to 12 months.
Global Support: 24/7 technical assistance and spare parts supply.

Company Profile

EZ Steel Industrial Co., Ltd

EZ Steel Industrial Co.,Ltd is a leading manufacturer of high-performance industrial metal pipelines, specializing in alloy steel, carbon steel, stainless steel, and copper-nickel-based alloy products. With strategically located facilities in Cangzhou, Yangzhou, and Lishui, we deliver globally trusted piping solutions that combine cutting-edge technology, rigorous quality control, and unmatched expertise.

EZ Steel & Metal- Your Tubing Expert for a Wise Solution

First-class brand, First-calss service, First-class value

Why Choose Us?

Other Products

Full-Cycle Manufacturing Expertise

Our in-house steel pipe production facilities enable strict quality control from raw material selection to finished products.

Comprehensive Inventory Management

We maintain a strategic stock of carbon steel, alloy steel, and stainless-steel pipes across common grades (ASTM A106, A53, A312, etc.)

Project-Centric Package Solutions

Beyond standalone pipe supply, we provide turnkey material packages including valves, flanges, fittings, and specialty alloys. 

Technical Excellence Across the Value Chain

Quality Assurance: ISO 9001-certified laboratories conduct rigorous mechanical tests (hydrostatic, ultrasonic, PMI) and issue mill test certificates.

Carbon and carbon alloy steel:

 pressure tubes, pipeline works, structure works

Stainless steel pipes and fittings:

pressure tubes, pipeline works, structure works

Copper and Nickel alloy pipe:

for petrochemical facilities, Marin and ship-building and power plant & aerospace

Heat Efficiency tubes: U bend tube and Finned tube

Pipe fittings: BW fittings, SW fittings, Threaded fittings
Pipe Flanges: Steel flanges and copper Nickel flanges

Gasket, Stud Bolt & Nut
Industrial Valves

FAQ

Q: What's the lead time for orders?
A: Standard models ship in 7–30 days; customized units require 30–45 days.

Q: Can I request a customized products size?
A: Absolutely! We offer tailored attachments.

Q: What documents do you provide for export?
A: Full export package (Commercial Invoice, Packing List, Bill of Lading, COC, Form A/E, FTA, LPSR, TUV & SGS certificate, etc.).

Q: How do I place an order?
A: Contact us via email/phone for a quote, then confirm with a PO.

 
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