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Conquer severe corrosive challenges with ASME SA240 ASTM A240 UNS S31260 stainless steel sheet, a super duplex alloy blending high strength with exceptional pitting and crevice corrosion resistance. As Gangsteel, your leading manufacturer, supplier, and exporter, we produce this advanced grade in state-of-the-art Chinese facilities, strictly adhering to ASME and ASTM standards for global industrial reliability. UNS S31260, a molybdenum-enriched duplex stainless steel with copper and tungsten additions, excels in aggressive chloride and acidic environments, making it indispensable for offshore platforms, subsea equipment, and chemical processing vessels in oil and gas, desalination, and pulp industries. Our ASME SA240 ASTM A240 UNS S31260 stainless steel sheets deliver the ultimate combination of mechanical toughness, weldability, and longevity in harsh conditions.
Gangsteel's ISO 9001 and PED certifications ensure seamless worldwide supply. Integrate our sa240/a240 uns s31260 for robust performance—contact us today for customized pricing and prompt delivery. Explore similar super duplex options like sa240/a240 uns s31200, sa240/a240 uns s32001, or sa240/a240 uns s32003.
Gangsteel Comprehensive Guide to ASME SA240 ASTM A240 UNS S31260 stainless steel sheets, a super duplex grade offering superior pitting resistance (PREN >40) and high strength in chloride-rich media. Covering chemical composition, mechanical properties, international equivalents, specifications, applications, advantages, and pricing from Gangsteel, it highlights why this material is ideal for subsea piping, desalination evaporators, and chemical reactors. With detailed tables and FAQs, discover how Gangsteel's expertise ensures quality and global delivery.
ASME SA240 ASTM A240 UNS S31260 stainless steel sheetis a hot-rolled or cold-rolled plate from the super duplex stainless steel family, combining austenitic and ferritic phases with molybdenum, copper, and tungsten for elite corrosion resistance and mechanical strength. Specified under ASME SA240 for pressure vessels and ASTM A240 for general corrosion-resistant applications, this grade is annealed for optimal wrought performance in highly aggressive environments. The balanced microstructure provides nearly double the yield strength of austenitic grades, with a PREN exceeding 40 for exceptional resistance to pitting, crevice corrosion, and stress cracking.
Unlike standard duplex like 2205, UNS S31260 stainless steel sheets incorporate copper (0.50-1.00%) for improved sulfuric acid resistance and tungsten for enhanced pitting in hot chlorides, making it superior in seawater and acidic conditions. With a product density of 7.8 g/cm³, these sheets offer an optimal balance of lightweight design and robustness, versatile for fabrication into heat exchangers, umbilicals, and structural components. As Gangsteel, we've exported thousands of tons of ASME SA240 ASTM A240 UNS S31260 stainless steel sheets to clients in Europe, North America, and Asia, ensuring compliance with ISO 9001 and PED certifications for seamless integration into your supply chain. Our expertise extends to related super duplex grades like sa240/a240 uns s32101 and sa240/a240 uns s32900.
The precise alloying elements in ASME SA240 ASTM A240 UNS S31260 stainless steel sheet define its superior corrosion resistance. Here's a breakdown of the typical chemical composition per ASTM A240/SA240 standards:
Element |
Composition Range (%) |
Role in Alloy |
---|---|---|
Carbon (C) |
≤0.030 |
Minimizes carbide precipitation for better weldability |
Manganese (Mn) |
≤1.00 |
Enhances nitrogen solubility and phase balance |
Phosphorus (P) |
≤0.030 |
Controls impurities for improved toughness |
Sulfur (S) |
≤0.010 |
Low levels prevent hot shortness during rolling |
Silicon (Si) |
≤0.75 |
Aids in deoxidation and scaling resistance |
Chromium (Cr) |
24.00-26.00 |
Primary corrosion resistance element in both phases |
Nickel (Ni) |
5.50-7.50 |
Stabilizes austenite and boosts ductility |
Molybdenum (Mo) |
2.50-3.50 |
Dramatically improves resistance to pitting and crevice corrosion |
Copper (Cu) |
0.50-1.00 |
Enhances resistance to sulfuric acid and reducing environments |
Tungsten (W) |
0.10-0.50 |
Further boosts pitting resistance in chlorides |
Nitrogen (N) |
0.10-0.30 |
Increases yield strength and stabilizes duplex structure |
Iron (Fe) |
Balance |
Base metal |
This composition ensures UNS S31260 stainless steel sheets perform exceptionally in harsh conditions, such as seawater exposure or acidic solutions. At Gangsteel, our metallurgical experts conduct rigorous PMI (Positive Material Identification) testing to guarantee these specs on every batch. For comparable compositions, see our sa240/a240 uns s32906 or sa240/a240 uns s32950.
ASME SA240 ASTM A240 UNS S31260 stainless steel sheetsare renowned for their balanced mechanical properties, making them ideal for high-stress environments. Key properties include:
Property |
Value (Minimum) |
Test Condition |
---|---|---|
Tensile Strength |
690 MPa (100 ksi) |
Annealed |
Yield Strength |
450 MPa (65 ksi) |
0.2% Offset |
Elongation |
25% in 50mm |
Transverse |
Hardness |
≤290 HB (Brinell) |
As-rolled |
These sheets are available in annealed and pickled conditions, with options for custom tempering. Under ASME SA240, they qualify for boiler and pressure vessel codes (Section II), while ASTM A240 covers broader uses like flanges and fittings. Gangsteel produces these in standard sizes but offers cut-to-size services to minimize waste and accelerate your production timelines. Explore related grades such as sa240/a240 uns s32803 or sa240/a240 uns s31200.
For projects requiring alternatives or equivalents to UNS S31260, Gangsteel supplies a range of comparable grades across international standards. Below is a table of equivalent materials:
Country/Region |
Designation |
Standards |
Key Notes |
---|---|---|---|
USA |
UNS S31260 |
ASTM A240, ASME SA240 |
Super duplex base with Cu/W |
Europe |
1.4466 |
EN 10088 |
High Mo/N for pitting |
Germany |
X2CrNiMoCuN25-6-3 |
DIN 17460 |
Balanced super duplex |
Japan |
DP3 or SUS 329J4L |
JIS G 4303 |
Seawater resistant adapted |
China |
00Cr25Ni7Mo3CuN (equiv.) |
GB/T 1220 |
Domestic super duplex analog |
These equivalents maintain similar corrosion resistance and mechanical profiles, ideal for seamless substitutions. View details on sa240/a240 uns s31260 or sa240/a240 uns s32001 for more options.
Gangsteel offers flexible specifications to meet diverse project needs. Our ASME SA240 ASTM A240 UNS S31260 stainless steel sheets can be customized as follows:
Specification |
Range/Details |
---|---|
Thickness |
0.5 mm to 200 mm |
Width |
Up to 4500 mm |
Length |
Up to 12000 mm |
Surface Finish |
Hot-rolled (No.1), Cold-rolled (2B, BA), Annealed & Pickled |
Forms |
Sheets, Plates, Coils, Cut-to-Size |
Cutting Options |
Plasma, Laser, Waterjet |
With a product density of 7.8 g/cm³, these sheets are lightweight yet durable, supporting efficient shipping and installation. We handle precision machining for sa240/a240 uns s32003 and similar grades.
The versatility of UNS S31260 stainless steel sheets shines across industries requiring corrosion-resistant materials with high strength. Common applications include:
Gangsteel's ASME SA240 ASTM A240 UNS S31260 stainless steel sheets have been instrumental in major projects, from North Sea oil rigs to Australian desalination facilities. Their PREN (Pitting Resistance Equivalent Number) of over 40 ensures longevity, reducing maintenance costs by up to 35% compared to 316L grades. Pair with sa240/a240 uns s32101 for high-temperature apps.
As a premier exporter of ASME SA240 ASTM A240 UNS S31260 stainless steel sheets, Gangsteel offers unmatched advantages:
Why settle for generic suppliers when Gangsteel guarantees premium UNS S31260 stainless steel sheets backed by responsive support? Our clients rave about our on-time deliveries and after-sales service. Discover more in our sa240/a240 uns s32900 range.
In aggressive environments, ASME SA240 ASTM A240 UNS S31260 stainless steel sheets outperform competitors. The molybdenum, copper, and tungsten content elevates its Critical Pitting Temperature (CPT) to over 70°C in 6% FeCl3, far surpassing 316L's 35°C. This makes it perfect for subsea applications, phosphoric acid production, and marine structures. Independent tests by NACE (National Association of Corrosion Engineers) confirm its resistance to intergranular corrosion post-welding, thanks to the low carbon design.
At Gangsteel, we leverage advanced pickling lines to enhance surface passivation, ensuring your UNS S31260 sheets arrive ready for immediate use. Compare with sa240/a240 uns s32906.
Gangsteel's pricing for UNS S31260 stainless steel sheets is competitive and volume-based, reflecting current market conditions and alloy premiums. For reference only; due to fluctuations in raw materials and market conditions, specific quotes shall prevail. As of our latest updates:
Factors influencing price include thickness, surface finish, and order volume (minimum 1 ton). Bulk orders qualify for discounts up to 15%. For an exact quote tailored to your specs, email us at admin@gangsteel.com. Prices are subject to change; visit https://gangsteel.net for real-time inquiries. Related pricing available for sa240/a240 uns s32950.
UNS S31260is a super duplex stainless steel used in applications demanding high strength and corrosion resistance, such as subsea umbilicals, desalination evaporators, and chemical reactors handling phosphoric or sulfuric acids. Its duplex structure with Mo (2.5-3.5%), Cu (0.5-1%), and W (0.1-0.5%) provides PREN >40 for pitting in hot chlorides up to 80°C, outperforming 2205 in reducing environments. Gangsteel supplies ASME/ASTM sheets for pressure vessels and piping, with use in offshore flowlines reducing weight 40% vs. austenitics. For leaner duplex, see sa240/a240 uns s32101.
UNS S31260is similar to 2507 (S32750) in PREN ~40 and yield 450 MPa, but adds Cu (0.5-1%) for sulfuric acid resistance and W (0.1-0.5%) for pitting in hot chlorides, while 2507 has higher N (0.24-0.32% vs. 0.1-0.3%) for better toughness. S31260 suits reducing acids; 2507 oxidizing chlorides. Cost: S31260 10% higher for Cu/W. Gangsteel selects for desalination. Equiv: sa240/a240 uns s32900.
Yes, UNS S31260 welds effectively with GTAW/SMAW using ER2594 fillers; super duplex balance requires post-weld anneal 1050-1120°C for full PREN, preheat 100°C, interpass <150°C to retain 40-60% ferrite. ASTM A923 confirms no detrimental phases. Gangsteel certs for cyclic, thick-plate with 15% less heat input than austenitics. Protocols: sa240/a240 uns s32906.
The density of ASME SA240 ASTM A240 UNS S31260 stainless steel sheet is 7.8 g/cm³ (0.282 lb/in³), typical for duplex, enabling 25% thinner walls vs. austenitics for weight savings in offshore without strength loss. Gangsteel factors in logistics.
Gangsteel offers UNS S31260 at approximately $2.50-$3.50 per kg for standard sheets (FOB basis). Thicker or custom adds 10-15%. Contact admin@gangsteel.com for rates, influenced by duplex surcharges. Bulk 15% off. Compare sa240/a240 uns s32950.
UNS S31260anneals at 1025-1125°C (quench) for phase balance; no hardening, stress-relieve 350-550°C post-form. Avoid 475°C embrittlement. Gangsteel treats with A923 verification. Consult for sa240/a240 uns s32803.
Gangsteel's UNS S31260 sheets include EN 10204/3.1 MTCs, PMI/UT, third-party (SGS/BV) for ASME/ASTM/PED. ISO 9001 traceability; optional NACE MR0175, A923 duplex. More: sa240/a240 uns s31200.
Ready to source high-quality ASME SA240 ASTM A240 UNS S31260 stainless steel sheets? Gangsteel is your trusted partner for manufacturing and exporting this elite grade. Visit our website at https://gangsteel.net or email admin@gangsteel.com for a free sample, detailed datasheet, or personalized quote. With warehouses in Shanghai and Rotterdam, we deliver worldwide—empower your projects with Gangsteel's excellence today! Check out sa240/a240 uns s31200 for lean duplex alternatives.
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