AISI S32750 Pipe

1. Standard: ASTM A312, ASME SA 312
2. Size: 1/2''~48''
3. Thickness: SCH5~SCHXXS
4. Service: Cutting, Welding, Fabricated, Customized

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Product Introduction

S32750 super duplex stainless steel pipe achieves a revolutionary balance between corrosion resistance and mechanical strength with its duplex microstructure (50% austenite + 50% ferrite) and high alloy composition ratio (24-26% chromium, 3-5% molybdenum, 6-8% nickel, 0.24-0.32% nitrogen). Our manufacturers can produce S32750 seamless and welded pipes to meet industry requirements. Contact us market@htpipe.com for more information and a free quote!

AISI S32750 pipe specification

Specification	Astm A790 and Asme Sa790
Standard	ASTM, AISI, EN, GB, DIN, JIS, ASME
Seamless Pipe OD	6.00MM Outer Diameter upto 250MM Outer Diameter, Sizes upto 12Inch NB
Welded Pipe size	5.0 MM To 1219.2 MM
Thickness	0.3 To 50 MM
Schedule	5, 10, 40, 80, 80S, 160, XXS, XS ASTM A790 Uns S32750 Pipe Supplier
Pipe Finish	NO.1, Polished, 2B, Annealed and Pickled, BA, HL, 8K, Mirror finish etc
UNS S32750 Welded Pipe Form	Round, Square, Hollow, Hydraulic, Coiled, Straight Pipes
ASTM A790 UNS S32750 Tube Length	Double Random, Single Random, Standard and Cut length
Equivalent Materials	X2CrNiMoN25-7-4, 1.4410, SAF2507, F53

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Why choose S32750 Pipe in the industrial field?

2507 pipe Corrosion resistance

Pitting and crevice corrosion protection: High chromium and molybdenum content forms a dense oxide film, and the critical pitting temperature exceeds 50°C in a chlorine-containing environment (such as seawater and brine injection), which is significantly better than ordinary duplex steel.
Stress corrosion cracking (SCC) resistance: The duplex structure blocks the crack propagation path, and the service life in the H₂S environment of the oil and gas industry and offshore platforms is increased by more than 3 times.

SS 2507 pipe mechanical properties

Tensile strength ≥750 MPa, yield strength ≥550 MPa, elongation ≥25% (solution annealing state), suitable for load-bearing components such as high-pressure pipelines and deep-sea risers. Excellent low-temperature toughness (notch ductility is maintained at -50°C), covering the needs of cold oil and gas fields and liquefied natural gas (LNG) equipment.

S32750 stainless steel Physical properties

Low thermal expansion coefficient + high thermal conductivity (14 W/m·K), reducing the risk of deformation of the heat exchange system.

Magnetic properties facilitate non-destructive testing and improve equipment monitoring efficiency.

Material Testing of 2507 pipe

Hardness Test
Chemical Analysis – Spectro Analysis
Positive Material Identification – PMI Testing
Flattening Test
Micro and MacroTest
Pitting Resistance Test
Flaring Test
Intergranular Corrosion (IGC) Test

Super stainless steel 2507 pipe application

Heat treatment industry: furnace rollers, muffles, radiation tubes, baskets, fan blades, air guide plates, quenching fixtures.
Chemical and petrochemical: high-temperature cracking furnace tubes (specific environments), converter components, catalyst support grids, high-temperature valve flange gaskets, heat exchangers (high-temperature sections).
Aerospace: combustion chamber components (flame tubes, transition sections), thrust reverser insulation structures, high-temperature fasteners.
Energy and power: gas turbine combustion chamber liners, thermal barrier coating substrates, boiler key high-temperature components, and certain auxiliary systems for nuclear power.
Glass and ceramic manufacturing: furnace rollers, furnace doors, burners, and hot end conveying components.
Environmental engineering: high-temperature areas of flue gas desulfurization (FGD) systems, and waste incinerator components.
Industrial furnace manufacturing: as the core material of high-performance furnace heat-resistant steel.

2507 Super Duplex Stainless Steel Welded Tube Tolerances

O.D. INCHES	WALL THICKNESS INCHES	O.D. +/- INCHES
1/2" to 1" incl.	.025 to .065	0.005
1/2" to 1" incl.	Over .065 to .134	0.01
1 to 1-1/2" incl.	.025 to .065	0.008
1 to 1-1/2" incl.	Over .065 to .134	0.01
1-1/2" to 2" incl.	.025 to .049	0.01
	Over .049 to .083	0.011
	Over .083 to .148	0.012
2" to 2-1/2" incl.	.032 to .065	0.012
	Over .065 to .109	0.013
	Over .109 to .165	0.014
2-1/2" to 3-1/2" incl.	.032 to .165	0.014
2-1/2" to 3-1/2" incl.	Over .165 to .220	0.02
3-1/2" to 5" incl.	.083 to .165	0.02
3-1/2" to 5" incl.	Over .165 to .220	0.025