S32707 Duplex Stainless Steel Pipe

S32707 / 1.4658 Duplex Stainless Steel Pipe is a high-strength duplex stainless steel pipe combining excellent mechanical performance with outstanding corrosion resistance. With its balanced austenitic–ferritic microstructure, it offers superior resistance to pitting, crevice corrosion, and stress corrosion cracking, especially in chloride-rich and harsh environments. S32707 duplex pipes are widely used in oil & gas, offshore engineering, chemical processing, and seawater systems where reliability and long service life are critical.

Specifications of S32707 Duplex Stainless Steel Pipe:

Specifications	ASTM A790, A928, A789, Welded Pipe, Seamless Pipe
Grade	2707,S32707
Type	Seamless pipe / Welded pipe
Outer Diameter	6 mm - 219 mm (custom sizes available)
Wall Thickness	0.5 mm - 20 mm (custom thickness on request)
Length	Up to 6000 mm (custom lengths available)
Surface	Black, Bright, Polished
Condition	Annealed / Hard / As Drawn

 

Chemical Composition UNS S32707 pipe:

Grade	C	Mn	Si	P	S	Mo	Ni
UNS S32707(2707 HD)	0.03	1.5	0.5	0.035	0.010	4.8	6.5
UNS: S33207 (3207 HD)	0.03	1.5	0.8	0.035	0.010	3.5	7

 

Properties Duples S32707 pipe:

The following figures apply to solution annealed seamless tubes with wall thicknesses up to 4 mm.

At 20°C (68°F)

Metric units

Proof strength, MPa		Tensile strength, MPa	Elongation, %		Hardness, HRC
Rp0.2a)	Rp1.0a)	Rm	Ab)	A2"
≥700	≥800	920-1100	≥25	≥25	≤34

 

Key Features of 1.4658 Duplex Stainless Steel Pipe :

• High yield and tensile strength, offering superior pressure resistance

• Excellent resistance to pitting and crevice corrosion in chloride-rich environments

• Outstanding resistance to stress corrosion cracking (SCC)

• Good corrosion resistance in seawater and aggressive media

• Balanced austenitic–ferritic microstructure with stable mechanical properties

• Good weldability and formability

• Long service life with reduced maintenance and replacement costs

UNS S32707 duplex stainless steel pipe Applications:

• Oil and gas pipelines and processing systems

• Offshore platforms and subsea engineering

• Chemical processing and petrochemical equipment

• Seawater pipelines and desalination plants

• Heat exchangers and pressure vessels

• Marine engineering and shipbuilding

• Power generation and industrial piping systems

FAQ :

Q1: What is the difference between S32707 and 2205 duplex stainless steel pipe?
A1: S32707 offers higher corrosion resistance and strength than standard 2205 duplex stainless steel, especially in chloride-rich environments.

Q2: Is S32707 suitable for seawater applications?
A2: Yes, S32707 duplex stainless steel pipe shows excellent performance in seawater and offshore environments.

Q3: Can you supply S32707 seamless pipes with MTC?
A3: Yes, full EN 10204 3.1 mill test certificates are available.

Why Choose SAKYSTEEL :

Reliable Quality – Our stainless steel bars, pipes, coils, and flanges are manufactured to meet international standards such as ASTM, AISI, EN, and JIS. Strict Inspection – Every product undergoes ultrasonic testing, chemical analysis, and dimensional control to ensure high performance and traceability. Strong Stock & Fast Delivery – We maintain regular inventory of key products to support urgent orders and global shipping. Customized Solutions – From heat treatment to surface finish, SAKYSTEEL offers tailor-made options to match your exact requirements. Professional Team – With years of export experience, our sales and technical support team ensures smooth communication, quick quotations, and full documentation service.

SAKY STEEL'S Quality Assurance (including both Destructive and Non-Destructive) :

1. Visual Dimension Test 2. Mechanical examining like tensile, Elongation and reduction of area. 3. Impact analysis 4. Chemical examination analysis 5. Hardness test 6. Pitting protection test 7. Penetrant Test 8. Intergranular Corrosion Testing 9. Roughness Testing 10. Metallography Experimental Test

SAKY STEEL'S Packaging:

1. Packing is quite important especially in a case of international shipments in which consignment pass through various channels to reach the ultimate destination, so we put special concern regarding packaging. 2. Saky Steel's pack our goods in numerous ways based on the products. We pack our products in multiple ways, such as,