ASME SA240 ASTM A240 UNS S31200 Stainless Steel Sheet: Premium Supplier from Gangsteel

Elevate your duplex performance with ASME SA240 ASTM A240 UNS S31200 stainless steel sheet, a balanced austenitic-ferritic alloy optimized for superior corrosion resistance and strength.

 As Gangsteel, your trusted manufacturer, supplier, and exporter, we produce this versatile grade in advanced Chinese facilities, fully compliant with ASME and ASTM standards for global structural and corrosive applications. UNS S31200, a lean duplex stainless steel with molybdenum and nitrogen enhancements, excels in pitting and stress corrosion cracking resistance, making it essential for chemical tanks, pulp digesters, and offshore piping in oil and gas, paper production, and marine environments.

Our ASME SA240 ASTM A240 UNS S31200 stainless steel sheets provide the ideal blend of high yield strength, good weldability, and cost-effective durability.

Gangsteel's ISO 9001 and PED certifications ensure seamless worldwide supply. Integrate our sa240/a240 uns s31200 for robust designs—contact us today for customized pricing and prompt delivery. Explore similar duplex options like sa240/a240 uns s31260, sa240/a240 uns s32001, or sa240/a240 uns s32003.

Content Summary: UNS S31200 Stainless Steel Sheet Properties and Applications

Gangsteel Comprehensive Guide to ASME SA240 ASTM A240 UNS S31200 stainless steel sheets, a lean duplex grade offering enhanced pitting resistance and high strength in corrosive media. Covering chemical composition, mechanical properties, international equivalents, specifications, applications, advantages, and pricing from Gangsteel, it highlights why this material is ideal for chemical processing tanks, pulp and paper digesters, and offshore oil platforms. With detailed tables and FAQs, discover how Gangsteel's expertise ensures quality and global delivery.

What is ASME SA240 ASTM A240 UNS S31200 Stainless Steel Sheet?

ASME SA240 ASTM A240 UNS S31200 stainless steel sheetis a hot-rolled or cold-rolled plate from the lean duplex stainless steel family, combining austenitic and ferritic phases with molybdenum and nitrogen for outstanding 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 moderately aggressive environments. The duplex microstructure provides twice the yield strength of standard austenitics, with a PREN around 25 for good pitting resistance in chlorides.

Unlike fully austenitic 304 or 316 stainless steels, UNS S31200 stainless steel sheets offer superior stress corrosion cracking resistance and higher strength, allowing thinner walls for cost savings without sacrificing durability. With a product density of 7.8 g/cm³, these sheets balance lightweight design with robustness, suitable for fabricating bridges, storage tanks, and structural components. Gangsteel has exported thousands of tons of ASME SA240 ASTM A240 UNS S31200 stainless steel sheets to clients in Europe, North America, and Asia, supported by ISO 9001 and PED certifications for seamless integration into your supply chain. Our expertise extends to related duplex grades like sa240/a240 uns s32101 and sa240/a240 uns s32900.

Key Chemical Composition of UNS S31200 Stainless Steel Sheet

The precise alloying elements in ASME SA240 ASTM A240 UNS S31200 stainless steel sheet define its balanced duplex properties. Here's a breakdown of the typical chemical composition per ASTM A240/SA240 standards:

This composition ensures UNS S31200 stainless steel sheets perform exceptionally in chloride and acidic conditions, such as brackish water or mild acids. 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.

Mechanical Properties of UNS S31200 Stainless Steel Sheet

ASME SA240 ASTM A240 UNS S31200 stainless steel sheetsare renowned for their high strength and toughness, making them ideal for structural applications. Key properties include:

Table 1

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.

Equivalent Materials for UNS S31200 Stainless Steel Sheet

For projects requiring alternatives or equivalents to UNS S31200, Gangsteel supplies a range of comparable grades across international standards. Below is a table of equivalent materials:

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.

Available Specifications and Sizes for UNS S31200 Stainless Steel Sheet

Gangsteel offers flexible specifications to meet diverse project needs. Our ASME SA240 ASTM A240 UNS S31200 stainless steel sheets can be customized as follows:

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.

Applications of UNS S31200 Stainless Steel Sheet

The versatility of UNS S31200 stainless steel sheets shines across industries requiring corrosion-resistant materials with high strength. Common applications include:

• Chemical Processing: Tanks, reactors, and piping for handling acids like phosphoric and hydrochloric.
• Oil and Gas: Offshore platforms and desalination plants where chloride stress is prevalent.
• Pulp and Paper: Digesters and bleach washers exposed to alkaline and sulfurous environments.
• Pharmaceuticals: Sterile equipment and vessels demanding high purity and cleanability.
• Power Generation: Flue gas desulfurization systems for scrubbers and ducts.

Gangsteel's ASME SA240 ASTM A240 UNS S31200 stainless steel sheets have been instrumental in major projects, from European refineries to Middle Eastern desalination facilities. Their PREN (Pitting Resistance Equivalent Number) of around 25 ensures longevity, reducing maintenance costs by up to 30% compared to 316L grades. Pair with sa240/a240 uns s32101 for high-temperature apps.

Advantages of Choosing Gangsteel for Your UNS S31200 Stainless Steel Needs

As a premier exporter of ASME SA240 ASTM A240 UNS S31200 stainless steel sheets, Gangsteel offers unmatched advantages:

• Global Export Expertise: With over 20 years in the industry, we ship to 50+ countries, handling customs, logistics, and certifications like CE, ABS, and DNV.
• Quality Assurance: Mill test certificates (EN 10204/3.1), ultrasonic testing, and third-party inspections ensure defect-free delivery.
• Customization: From surface finishes to edge conditioning, we tailor to your specs.
• Sustainability: Our eco-friendly melting processes use recycled scrap, aligning with global green standards.

Why settle for generic suppliers when Gangsteel guarantees premium UNS S31200 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.

Why UNS S31200 Excels in Corrosion Resistance

In aggressive environments, ASME SA240 ASTM A240 UNS S31200 stainless steel sheets outperform competitors. The molybdenum and nitrogen content elevates its Critical Pitting Temperature (CPT) to over 50°C in 6% FeCl3, far surpassing 316L's 35°C. This makes it perfect for urea plants, acetic acid production, and marine applications. 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 S31200 sheets arrive ready for immediate use. Compare with sa240/a240 uns s32906.

Pricing for ASME SA240 ASTM A240 UNS S31200 Stainless Steel Sheet

Gangsteel's pricing for UNS S31200 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:

• Standard Sheet (1-5mm thick, 1500x6000mm): Starting at $4,000-$5,500 per ton (FOB Shanghai).
• Thick Plate (10-50mm): $4,500-$6,000 per ton, depending on quantity.
• Custom Cuts: Add 10-15% for precision processing.

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.

FAQ: Common Questions About ASME SA240 ASTM A240 UNS S31200 Stainless Steel Sheet

What is UNS S31200 stainless steel used for?

UNS S31200is a lean duplex stainless steel used in applications requiring high strength and corrosion resistance, such as chemical processing tanks, pulp digesters, and offshore oil piping. Its duplex structure provides twice the yield strength of 316L (450 MPa vs. 205 MPa) with good pitting resistance (PREN ~25), making it suitable for chloride environments like seawater up to 40°C. Gangsteel supplies ASME/ASTM sheets for pressure vessels and structural components, with use in fertilizer plants reducing thickness 30% for cost savings. For higher PREN, see sa240/a240 uns s32101.

What are the differences between UNS S31200 and 2205 stainless steel?

UNS S31200is leaner than 2205 (S31803/S32205) with lower Mo (1.2-2% vs. 2.5-3.5%) and N (0.14-0.2% vs. 0.08-0.2%), yielding PREN 25 vs. 35 for moderate chlorides vs. 2205's severe. Yield 450 MPa similar, but S31200 costs 15-20% less for less aggressive apps. 2205 for high pitting; S31200 structural. Gangsteel advises for pulp upgrades. Equiv: sa240/a240 uns s32900.

Is UNS S31200 stainless steel weldable?

Yes, UNS S31200 welds well with GTAW/SMAW using ER2209 fillers; duplex phase balance requires post-weld anneal 1050°C for full PREN, preheat 100°C, interpass <150°C to avoid ferrite excess. ASTM A923 confirms no intergranular in welds. Gangsteel certs for cyclic, thick-plate with 10% less heat input than austenitics. Protocols: sa240/a240 uns s32906.

What is the density of UNS S31200 stainless steel?

The density of ASME SA240 ASTM A240 UNS S31200 stainless steel sheet is 7.8 g/cm³ (0.282 lb/in³), slightly lower than austenitics due to ferrite, aiding 10% lighter designs in offshore without strength loss. Gangsteel factors in shipping.

How much does UNS S31200 stainless steel cost per kg?

Gangsteel offers UNS S31200 at approximately $2.00-$2.75 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.

Can UNS S31200 be heat treated?

UNS S31200anneals at 1020-1100°C (quench) for phase balance; no hardening, stress-relieve 400-600°C post-form. Avoid 350-900°C sigma. Gangsteel treats with A923 verification. Consult for sa240/a240 uns s32803.

What certifications are available for Gangsteel UNS S31200 sheets?

Gangsteel's UNS S31200 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.

Contact Gangsteel Today for ASME SA240 ASTM A240 UNS S31200 Stainless Steel Sheets

Ready to source high-quality ASME SA240 ASTM A240 UNS S31200 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 s31260 for duplex alternatives.

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