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JIS G3446-1994 JIS G3448-1997 JIS G3459-1997 JIS G3463-1994,ect.
GB13296-1991 GB14975-2002 GB14976-2002,ect.
Size:
ND5 - DN400
Length:
6m length or cutting any length as request
Applications:
fluid and gas transport, structure , boiler, heat exchanger, super heater
UNS S32750, also known as Alloy 2507, is a super duplex stainless steel pipe/tube renowned for its exceptional combination of strength, corrosion resistance, and toughness. This material is classified as a duplex stainless steel, meaning it has a microstructure consisting of approximately 50% austenite and 50% ferrite, which gives it advantages over both austenitic and ferritic stainless steels. Specifically designed to perform under high-pressure and aggressive environments, 2507 duplex stainless steel pipes are widely used in industries where reliability and durability under extreme conditions are critical.
Chemical Composition (Weight %) of Duplex 2507 Stainless Steel Pipe
Element
Content Range
Chromium (Cr)
24.0 - 26.0
Nickel (Ni)
6.0 - 8.0
Molybdenum (Mo)
3.0 - 5.0
Nitrogen (N)
0.14 - 0.20
Iron (Fe)
Balance
Carbon (C)
≤ 0.03
Manganese (Mn)
≤ 2.0
Silicon (Si)
≤ 1.0
Phosphorus (P)
≤ 0.035
Sulfur (S)
≤ 0.02
Mechanical Properties of Duplex 2507 Stainless Steel Pipe
Property
Value
Tensile Strength
≥ 800 MPa
Yield Strength (0.2% offset)
≥ 550 MPa
Elongation
≥ 15%
Hardness (Rockwell C)
≤ 31
Impact Strength (Charpy V-notch, -40°C)
≥ 40 J
Key Features of Duplex 2507 Stainless Steel Pipe
Excellent Corrosion Resistance: Resistant to pitting, crevice corrosion, and stress corrosion cracking, especially in chloride-rich environments (e.g., seawater, brines).
High Strength: Twice the yield strength of austenitic stainless steels (e.g., 316L), allowing for thinner wall designs and reduced weight in high-pressure applications.
Good Toughness: Maintains ductility and impact resistance even at low temperatures.
Weldability: Can be welded using standard methods (e.g., TIG, MIG) with proper procedure control to preserve duplex microstructure.
Cost-Effective: Offers a balance of performance and cost compared to higher-nickel alloys (e.g., super austenitic stainless steels).
Standards of Duplex 2507 Stainless Steel Pipe
2507 duplex stainless steel pipes/tubes are manufactured in compliance with various international standards, including:
ASTM A789 / A789M (Seamless and Welded Ferritic/Austenitic Duplex Stainless Steel Tubing for General Service)
ASTM A790 / A790M (Seamless and Welded Ferritic/Austenitic Duplex Stainless Steel Pipe for General Service)
ASME SA789 / SA790
EN 10216-5 (Welded duplex stainless steel tubes for pressure purposes)
DIN 17458 (Duplex stainless steel pipes)
Equivalent Grades of Duplex 2507 Stainless Steel Pipe
UNS S32750
EN 1.4410
DIN X2CrNiMoN25-7-4
JIS SUS 2507
Applications of Duplex 2507 Stainless Steel Pipe
Due to its high strength and corrosion resistance under pressure, 2507 duplex stainless steel pipes are ideal for:
Oil and gas industry: Offshore drilling equipment, subsea pipelines, and high-pressure wellhead components.
Chemical processing: Reactors, heat exchangers, and piping handling corrosive chemicals (e.g., acids, chlorides).
Desalination plants: Seawater intake and reverse osmosis systems.
Pulp and paper industry: Bleaching systems and processing equipment.
Power generation: High-pressure boilers and flue gas desulfurization systems.
Marine engineering: Ship hulls, ballast tanks, and offshore structures.
Export Packaging & Transportation
Packaging:
Pipes are typically bundled with steel straps, wrapped in waterproof plastic film or Hessian cloth to prevent moisture and scratches.
For small-diameter tubes, they may be packed in wooden crates or pallets with foam inserts for added protection.
Each bundle or crate is labeled with details such as material grade, size, quantity, heat number, and certification (e.g., Mill Test Report).
Transportation:
Shipped by sea in containers (20ft or 40ft) for long-distance international transport.
For land transport, trucks or railcars are used, with proper securing to avoid movement during transit.
Special handling is provided for large-diameter or heavy-wall pipes to ensure structural integrity.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter
Total Annual:
>1000000
Employee Number:
>100
Ecer Certification：
Verified Supplier
Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative... Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative...
