2507 Duplex Stainless Steel Bar
2507 super duplex stainless steel bar (UNS S32750) adopts high-alloy dual-phase microstructure, delivering ultra-high tensile strength and top-tier chloride & deep seawater corrosion resistance, outperforming regular 2205 duplex grade. It serves critical structural parts for deep-sea facilities and high-pressure chemical equipment, the priority material selected by premium global engineering procurement teams.
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Product Description
Product   Name 2507 Duplex Stainless Steel Bar
Standard ASTM A276, UNS S32750, EN 1.4410
Material

2507 duplex

TechniqueCold drawn, Hot rolled, Cold   rolled and Others.
Common Size Specs

Shapes: Round, square, hexagonal, flat solid bar

Diameter/width: 4mm–300mm

Hot-selling sizes: 16mm, 30mm, 50mm, 80mm, 120mm

Standard length: 3m / 6m, custom cutting & end machining available

Surface Treatment

Pickled passivated industrial finish, bright cold drawn, centerless ground polished, anti-rust sealed export packaging

Available Material Tempers

Solution annealed (standard uniform dual-phase metallurgical state for max strength & corrosion resistance)

OriginChina
Price TermsEXW, FOB, CIF, CRF, CNF or   others
Payment TermTT, LC, Cash, Paypal, DP, DA,   Western Union or Others.
PackagingBundle, PVC Bag, Nylon Belt,   Cable Tie, Standard export seaworthy package or as Request.
Processing ServiceBending, Welding, Decoiling,   Punching, Cutting and Others.
Tolerance±1%
MOQ5 tons
Exported to 

Norway, Germany, USA (European & American offshore engineering); 

Saudi Arabia, UAE, Qatar (Middle East desalination & petrochemical projects); Australia (coastal heavy industry)

Core Strengths

25Cr-7Ni-4Mo high-alloy super duplex structure, PREN>41, blocks seawater pitting & crevice corrosion

Double yield strength vs 300-series stainless, supports lightweight high-load structural design

Superior anti-stress corrosion cracking performance under sour fluid & high pressure

Stable mechanical toughness under long-term deep-water & chemical cyclic operation

Longer service lifespan to cut maintenance cost for top-tier industrial projects

Main Applications

Deep-sea offshore mechanical components, high-pressure chemical reaction equipment, seawater desalination hardware, acid medium heat exchanger fittings, offshore platform fasteners, oilfield sour service structural blanks


Looking for professional stainless steel bar manufacturers for long-term business cooperation? Haiwo steel as steel factory is your best choice!


Composition of Stainless Steel


Steel is an alloy of iron and carbon. Stainless steels are steels containing at least 10.5% chromium, less than 1.2% carbon and other alloying elements. Stainless steel’s corrosion resistance and

mechanical properties can be further enhanced by adding other elements, such as nickel, molybdenum, titanium, niobium, manganese, etc.


GradeCSiMnPSCrNiMoNCu
201≤0.15≤0.755.5~7.5≤0.060≤0.0316.00~18.003.5~5.5--0.08
202≤0.15≤1.007.5~10.00≤0.060≤0.0317.00~19.004.0~6.0-≤0.25
301≤0.15≤1.00≤2.00≤0.045≤0.0316.00~18.006.00~8.00-

302≤0.15≤1.00≤2.00≤0.035≤0.0317.00~19.008.00~10.00-

304≤0.07≤1.00≤2.00≤0.045≤0.0318.00~20.008.00~10.50-

304L≤0.030≤1.00≤2.00≤0.045≤0.0318.00~20.009.00~13.00-

310S≤0.08≤1.00≤2.00≤0.045≤0.0324.00~26.0019.00~22.00-

316≤0.08≤1.00≤2.00≤0.045≤0.0316.00~18.0010.00~14.002.00~3.00

316L≤0.03≤1.00≤2.00≤0.045≤0.0316.00~18.0012.00~15.002.00~3.00

321≤0.08≤1.00≤2.00≤0.045≤0.0317.00~19.009.00~13.00-

430≤0.12≤0.75≤1.00≤0.040≤0.0316.00~18.00
-

2205≤0.03≤1.00≤2.00≤0.030≤0.01522.00~23.004.5~6.52.5~3.5

2507≤0.03≤0.08≤1.20≤0.035≤0.01524.00~26.006.00~8.003.0~5.0

904L≤0.02≤1.00≤2.00≤0.045≤0.03519.00~23.0023.00~28.004.0~5.0
1.0~2.0
INCONEL028≤0.03≤1.00≤2.50≤0.030≤0.030≤28.0≤34.0≤4.0
≤1.4
MONEL400≤0.30≤0.5≤2.00-≤0.024-≥63.0-
≤34.0
INCONEL800≤0.10≤1.00≤1.50-≤0.015≤23.0≤354.0~5.0-≤0.75


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2507 Duplex Stainless Steel Bar

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2507 Duplex Stainless Steel Bar

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