Super Duplex 2507 Pipe Stainless Steel Tube For Extreme Corrosive Environments

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Shanxi Zhongcheng Metal Co., Ltd.

Province/State:Shaanxi

Country/Region:china

Tel:Yin-86-13309215766

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Super Duplex 2507 Pipe Stainless Steel Tube For Extreme Corrosive Environments

Brand Name	Baosteel，TISCO
Model Number	201 / 202 / 301 / 302 / 303 / 304 / 304L / 305 / 309S / 310S / 316 / 316L / 317 / 317L / 321 / 347 / 409L / 410 / 420 / 430 / 440C / 2205 / 2507
Certification	EN 10204 Type 3.1 / 3.2 available
Place of Origin	MADE IN CHAINA
Minimum Order Quantity	100kg
Price	Negotiable (Request a Quote)
Payment Terms	T/T，D/P，D/A，Western Union，PayPal
Supply Ability	10000tons
Delivery Time	15-25days
Packaging Details	Wooden pallets, wooden crates, woven bags, etc.
Country of Origin	MADE IN CHAINA
Brand	Baosteel，TISCO
Certifications	ISO/EN 10204 Type 3.1 / 3.2 available
Grade	201 / 202 / 301 / 302 / 303 / 304 / 304L / 305 / 309S / 310S / 316 / 316L / 317 / 317L / 321 / 347 / 409L / 410 / 420 / 430 / 440C / 2205 / 2507 / 630 (17-4PH)
MOQ	100kg
Packaging	Wooden Case / Wooden Pallet / Steel Frame / Carton / Woven Bag
Supply Capacity	10000tons

Detailed Product Description

Duplex 2507 pipe is a super duplex stainless steel designed for applications requiring exceptional strength and outstanding corrosion resistance. With a duplex microstructure (approximately 50% austenite / 50% ferrite), it offers nearly twice the yield strength of common austenitic stainless steels like 316L or 317L.

This grade is the material of choice for offshore platforms, chemical processing, desalination plants, and oil & gas exploration, where chloride pitting, crevice corrosion, and stress corrosion cracking (SCC) are major concerns.

Product Specifications

Feature	Description
Standard	ASTM A789 / A790, ASME SA789 / SA790
Grade	Duplex 2507
Type	Seamless pipe/tube
Microstructure	50% austenite / 50% ferrite
Yield Strength	≥550 MPa (≈ 2× 316L)
PREN	≥42 (excellent pitting resistance)

Chemical Composition

Element	Min %	Max %
Chromium (Cr)	24.0	26.0
Nickel (Ni)	6.0	8.0
Molybdenum (Mo)	3.0	5.0
Nitrogen (N)	0.24	0.32
Carbon (C)	--	0.030
Manganese (Mn)	--	1.20
Silicon (Si)	--	0.80
Phosphorus (P)	--	0.035
Sulfur (S)	--	0.020
Copper (Cu)	--	0.50
Iron (Fe)	Balance	Balance

Physical Properties

Property	Value
Density	7.80 g/cm³ (0.282 lb/in³)
Melting Range	1350 - 1400 °C (2460 - 2550 °F)
Coefficient of Thermal Expansion	13.0 μm/mK (7.2 μin/in°F)
Modulus of Elasticity	200 kN/mm² (29,000 ksi)

Typical Tensile Properties (Annealed Condition)

Property	Value
Tensile Strength, min	800 MPa (116 ksi)
Yield Strength (0.2% offset), min	550 MPa (80 ksi)
Elongation, min	15%
Hardness (Brinell), max	310 HB

Specifications & Size Range

Parameter	Range
Outer Diameter (OD)	6.0 mm – 610 mm (1/4" – 24")
Wall Thickness (WT)	0.5 mm – 30 mm (SCH 5S – SCH 160)
Length	6.0 m random length; custom lengths available
End Finish	Plain ends, beveled ends, threaded

Common stock sizes

OD: 25.4 mm × WT: 2.77 mm × L: 6.0 m
OD: 50.8 mm × WT: 3.05 mm × L: 6.0 m
OD: 88.9 mm × WT: 4.0 mm × L: 6.0 m
OD: 168.3 mm × WT: 5.0 mm × L: 6.0 m

Applications

Duplex 2507 seamless pipe is widely specified for extremely corrosive environments:

Industry	Specific Applications
Oil & Gas	Subsea pipelines, flow lines, risers, downhole tubing
Offshore Platforms	Firewater systems, hydraulic lines, structural components
Chemical Processing	Heat exchangers, pressure vessels, reactors
Desalination	High-pressure brine piping, evaporators
Pulp & Paper	Bleaching plants, digester vessels
Marine Engineering	Seawater cooling systems, propeller shafts
Flue Gas Desulfurization (FGD)	Absorber towers, ductwork

Corrosion Resistance Highlights

Corrosion Type	Performance
Pitting / Crevice	PREN ≥42 → excellent resistance in chloride-rich environments
Stress Corrosion Cracking (SCC)	Resistant to SCC in chloride and H₂S environments (NACE MR0175 compliant)
General Corrosion	Superior to 316L and 2205 in acids (sulfuric, formic, acetic)
Intergranular	Low carbon content prevents sensitization

Get a fast, accurate quote for Duplex 2507 pipe tailored to your project requirements.

Product Tags: Super Duplex 2507 Pipe 2507 Duplex Stainless Steel Tube Super Duplex Stainless Steel Tube

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