Super Duplex Steel UNS S32750 Tubes Manufacturer and Supplier in Thailand

Name: Super Duplex Steel UNS S32750 Tubes
Brand: Thaida Stainless Steel Manufacturing (Thailand) Co., Ltd.

Super Duplex Steel SAF 2507 Seamless Tubes is solid-drawn tube manufactured from a super duplex alloy with a balanced ferritic-austenitic structure.Thaida, a trusted manufacturer based in Thailand, offers premium-quality UNS S32750 seamless tubes designed for superior strength and corrosion resistance in harsh industrial environments. These tubes are ideal for use in chemical processing, offshore platforms, and marine applications. With a wide range of sizes, thicknesses, and lengths available, we ensure reliable performance, strict quality control, and global shipping support. Our super duplex steel tubes are known for their reliability, precise manufacturing, and compliance with ASTM A789 international standards, backed by thorough testing and documentation.

Other Related Products

Product Overview: Super Duplex UNS S32750 Seamless Tubes

Super duplex 1.4410 tubes are built for use in highly corrosive conditions. Made with a mix of chromium, molybdenum, nickel, and nitrogen, these tubes offer outstanding strength and corrosion resistance. UNS S32750 tubes are known for their easy weldability, excellent pressure resistance, and long-lasting performance. These tubes are ideal for harsh environments like offshore, marine, and chemical industries and are tested as per ASTM A789 standards to ensure proper heat treatment and mechanical strength. They are available in round, hydraulic, etc forms.

Key Features of UNS S32750 Seamless Tubes

Below are some key features of UNS S32750 seamless tubes such as mechanical strength, resistance, weldability etc which makes it reliable and high-performing:

UNS S32750 seamless tubes exhibit excellent resistance to pitting and crevice corrosion. Their high chromium, molybdenum, and nitrogen content enhances durability in corrosive environments.

These tubes offer significantly higher tensile and yield strength compared to standard stainless steels. This allows for strong and stable performance under pressure and mechanical load.

The balanced austenitic-ferritic microstructure provides an ideal combination of strength and corrosion resistance. It also contributes to better toughness and structural stability.

UNS S32750 demonstrates strong resistance to cracking under stress in corrosive conditions. This feature ensures long service life and reduced risk of failure in demanding conditions.

These seamless tubes retain their mechanical properties and structural integrity over a wide temperature range. They are stable under both high and fluctuating thermal conditions.

UNS S32750 tubes can be easily welded and fabricated using conventional techniques. Their good formability supports efficient manufacturing and assembly processes.

Why Choose Our Super Duplex S32750 Seamless Tubes

Thaida Stainless Steel Manufacturing (Thailand) Co., Ltd. is a leading manufacturer and supplier of ASTM A789 UNS S32750 seamless tubes, known for delivering unmatched quality and reliability. With advanced manufacturing processes, stringent quality controls, and a commitment to customer satisfaction, we ensure superior performance, durability, and corrosion resistance in every tube. Our competitive pricing and timely delivery further set us apart, making us the preferred choice for businesses worldwide.

Get the best price on super duplex S32750 seamless tubes

Send Us an Enquiry

UNS S32750 Super Duplex Steel Seamless Tubes Specification

This specification of SAF 2507 seamless tubes includes size range, wall thickness, type, length, and applicable standards.

Standard	ASTM A789, ASME SA789
Size	1/2″ NB to 12″ NB IN
Schedule	SCH20, SCH30, SCH40, STD, SCH80
Type	Seamless
Length	Single Random, Double Random, Cut Length
End	Plain End, Beveled End, Threaded

Super Duplex 2507 Seamless Tubing Gauge Thickness

The tubing gauge thickness specification for Super duplex 2507 tubes includes details for gauge and thickness range.

GAUGE	THICKNESS RANGE (INCH)	TYPICAL VALUE (INCH)
22	0.025 - 0.029	0.028
20	0.031 - 0.035	0.035
19	0.038 - 0.042	0.042
18	0.044 - 0.049	0.049
17	0.053 - 0.058	0.058
16	0.060 - 0.065	0.065
15	0.066 - 0.074	0.072
14	0.075 - 0.085	0.083
13	0.087 - 0.097	0.095
12	0.101 - 0.111	0.109
11	0.112 - 0.122	0.12
10	0.126 - 0.136	0.134
9	0.140 - 0.150	0.148
8	0.157 - 0.167	0.165
7	0.175 - 0.185	0.18

ASTM A789 UNS S32750 Seamless Tubes Standard Tolerances

This standard tolerance for ASTM A789 UNS S32750 tubes includes form , tolerance size range of tubes

	Size Range		Standard Tolerances
Pressure & Corrosion Tubing Meets or exceeds requirements for welded Specification: ASTM-A789	1/16" (1.59 mm) - 4" (101.6 mm) Metric sizes also available	0.010" (0.25 mm) - 0.220" (5.59 mm)	Random or cut lengths up - 40' (12.2 m) Coils to 1-1/2" OD	Super Duplex 2507	<1-1/2" (38.1 mm) ±0.005" (0.13 mm) 1-1/2" (38.1 mm) to 3" (76.2 mm) ±0.010" (0.25 mm) 3-1/2" (88.9 mm) to 4" (101.6 mm) ±0.015" (0.38 mm)	±10%	Randoms up to +2" (50.8 mm) Cuts +1/8" (3 mm) -0" Coils to 80,000' (24,384 m)
Subsea Umbilical Tubing Specifications: ASTM-A789 and ASTM-A790	3/8" (9.53 mm) to 1-1/2" (38.1 mm)	0.039" (0.99 mm) to 0.125" (3.18 mm)	Cut lengths to 60' (18.3 m) Coils to 1-1/2" OD*	Super Duplex 2507	±0.005" (0.127 mm)	±10%	Coils to 80,000' (24,384 m)

Size Range

Standard Tolerances

Form

Wall

Lengths and/or coils

Grades

Wall

Lengths

Pressure & Corrosion Tubing

Meets or exceeds requirements for welded

Specification: ASTM-A789

1/16" (1.59 mm) - 4" (101.6 mm)

Metric sizes also available

0.010" (0.25 mm) - 0.220" (5.59 mm)

Random or cut lengths up - 40' (12.2 m)

Coils to 1-1/2" OD

Super Duplex 2507

<1-1/2" (38.1 mm) ±0.005" (0.13 mm)

1-1/2" (38.1 mm) to 3" (76.2 mm) ±0.010" (0.25 mm)

3-1/2" (88.9 mm) to 4" (101.6 mm) ±0.015" (0.38 mm)

±10%

Randoms up to +2" (50.8 mm)

Cuts +1/8" (3 mm) -0"

Coils to 80,000' (24,384 m)

Subsea Umbilical Tubing

Specifications: ASTM-A789 and ASTM-A790

3/8" (9.53 mm) to 1-1/2" (38.1 mm)

0.039" (0.99 mm) to 0.125" (3.18 mm)

Cut lengths to 60' (18.3 m)

Coils to 1-1/2" OD*

Super Duplex 2507

±0.005" (0.127 mm)

±10%

Coils to 80,000' (24,384 m)

Equivalent Grades of S32750 Seamless Tubes

SAF 2507 seamless tubes equivalent table includes international material codes, DIN numbers, specifications and UNS Designation.

Alloy	UNS Designation	Werkstoff NR.	Specifications	AFNOR	1.4410
2507	S32750	1.4410	A/SA789	Z3 CN 25.06 Az	X2 Cr Ni MoN 25.7.4

Chemical Composition of ASTM A789 UNS S32750 Seamless Tubes

A detailed chemical composition of ASTM A789 UNS S32750 seamless tubes combining elements, ensures durability and resistance to corrosion in challenging environments.

Grade	C	Mn	P	S	Si	Ni	Cr	Mo	N	Cu
S32750	≤0.03	≤1.20	≤0.035	≤0.002	≤0.80	6.00–8.00	24.00–26.00	3.00–5.00	0.24–0.32	≤0.50

Mechanical Properties S32750 Super Duplex Stainless Steel Seamless Tubes

The mechanical properties of S32750 Super Duplex stainless steel tubes table include tensile strength, yield strength, and hardness levels.

		Tensile Strength			Yield Strength
Alloy	UNS Designation	Spec.	psi	MPa	ksi	psi	MPa	ksi	Elongation in 2 in. (min.) %	Grain Size Req.	Max. Hardness	Modulus of Elasticity (x106psi)	Mean Coefficient of Thermal Expansion (IN./IN./°F x 10-6)	Thermal Conductivity (BTU-in/ ft2-h-°F)
2507	S32750	A789, A790	116,000	800	116	80,000	550	80	15	-	32 Rc	27.5	7.2	98

UNS S32750 Super Duplex SAF 2507 Seamless Tubes Size Chart

This UNS S32750 tube size chart provides available tube sizes, thickness, and outer diameter.

Gauge	Outside Diameter Tolerance mm	Regular Wall (RW) mm	Thin Wall (TW) mm	Extra Thin Wall (XTW) mm	Ultra Thin Wall (UTW) mm
30	0.304 - 0.317	0.064 - 0.089
29	0.330 - 0.342	0.064 - 0.089
28	0.355 - 0.368	0.076 - 0.102
27	0.406 - 0.419	0.089 - 0.115	0.064 - 0.089
26	0.457 - 0.469	0.089 - 0.114
25	0.508 - 0.520	0.115 - 0.140	0.089 - 0.114
24	0.558 - 0.571	0.114 - 0.140	0.089 - 0.114		0.051 - 0.102
23	0.635 - 0.647	0.140 - 0.165	0.089 - 0.114		0.051 - 0.102
22	0.711 - 0.723	0.140 - 0.165	0.096 - 0.121	0.077 - 0.102	0.051 - 0.102
21	0.812 - 0.825	0.140 - 0.165	0.102 - 0.127		0.051 - 0.102
20	0.901 - 0.914	0.108 - 0.165	0.108 - 0.134
19	1.054 - 1.079	0.166 - 0.216	0.102 - 0.140	0.070 - 0.108
18	1.257 - 1.282	0.191 - 0.241	0.127 - 0.165	0.083 - 0.121	0.051 - 0.102
17	1.460 - 1.485	0.177 - 0.229	0.115 - 0.152	0.083 - 0.127	0.057 - 0.102
16	1.638 - 1.663	0.204 - 0.254	0.127 - 0.165	0.096 - 0.133	0.070 - 0.121
15	1.816 - 1.841	0.204 - 0.254	0.127 - 0.165	0.096 - 0.134	0.070 - 0.121
14	2.082 - 2.133	0.216 - 0.292	0.165 - 0.229	0.114 - 0.165	0.076 - 0.134
13	2.387 - 2.438	0.267 - 0.343	0.191 - 0.267
12	2.743 - 2.749	0.267 - 0.321
11	3.023 - 3.073	0.293 - 0.368	0.216 - 0.292

Super Duplex Steel S32750 Seamless Tubes Manufacturing Process

The process of manufacturing DIN 1.4410 seamless tubes is divided into five stages which is outlined below

1. Raw Material Selection
High-quality super duplex steel billets and strips are carefully selected for superior strength and corrosion resistance.

2. Tubes Formation
The selected raw material is formed into tubes using seamless extrusion methods, depending on the application.

3. Heat Treatment
Tube undergoes required controlled heat treatment to enhance mechanical properties and relieve internal stresses.

4. Cold Working and Finishing
After heat treatment, tubes are cold-worked for better surface finish, dimensional accuracy and improved strength.

5. Quality Control and Testing
Every tube is thoroughly inspected and tested to ensure it meets international quality standards for performance and reliability.

Applications of Super Duplex Stainless Steel S32750 Seamless Tubes

Super Duplex Steel S32750 Seamless Tubes are primarily used in the offshore oil and gas industry for subsea piping systems and topside processing equipment. They are also utilized in desalination plants, chemical processing units, and marine environments where high mechanical strength is essential.

Oil and Gas Industry

Marine Applications

Chemical Industry

Petrochemical Industry

Power Plants

Aerospace & Defense

Automotive and Transportation

Desalination Plants

Pulp and Paper Industry

Enquire Now

FAQ

What industries use UNS S32750 Seamless Tubes?

UNS S32750 tubes are widely used in offshore oil and gas, chemical plants, desalination, and power generation. They are also common in pulp and paper mills, marine systems, and pressure piping where high corrosion resistance is required.

What material is UNS S32750?

UNS S32750 is a super duplex stainless steel. It has high chromium, molybdenum, and nitrogen content for excellent strength and corrosion resistance. Its dual-phase structure makes it ideal for harsh chemical and seawater applications.

What is UNS S32750 cast equivalent?

The cast equivalent of UNS S32750 is generally known as ASTM A890 Grade 6A. It offers similar corrosion resistance and strength for cast components in chemical and marine service.

What makes UNS S32750 better than standard duplex or austenitic stainless steel?

It has higher strength and superior resistance to pitting, crevice, and stress corrosion. It outperforms 316 and standard duplex in seawater, chemicals, and high-pressure systems.

What is the difference between UNS S32750 and UNS S32760?

S32760 has slightly more chromium, molybdenum, and nitrogen than S32750, giving slightly higher corrosion resistance. Both are super duplex steels, but S32760 handles very aggressive environments better.

What is the chemical composition of S32750?

S32750 typically contains 24–26% chromium, 6–7% molybdenum, 3–5% nickel, 0.2% nitrogen, and small amounts of manganese, silicon, and iron balance. This mix ensures high strength and excellent resistance to pitting and crevice corrosion.