ASME SA240 ASTM A240 UNS S34800 Stainless Steel sheet

ASME SA240 ASTM A240 UNS S34800 Stainless Steel Sheet Plate Strip Supplier from Gangsteel

Embrace nuclear-grade precision with ASME SA240 ASTM A240 UNS S34800 stainless steel sheet plate strip, a columbium-stabilized austenitic alloy optimized for low-cobalt environments. As Gangsteel, your premier supplier, manufacturer, and exporter, we deliver this specialized grade from advanced Chinese facilities, impeccably tuned to ASME and ASTM requirements for worldwide nuclear and industrial use. UNS S34800, akin to 347 but with cobalt capped at 0.20%, safeguards against sensitization while ensuring robust corrosion resistance—essential for reactor components, pressure vessels, and heat exchangers in power generation and chemical sectors. Our ASME SA240 ASTM A240 UNS S34800 stainless steel sheet plate strip embodies reliability in radiation-sensitive applications.

Gangsteel's ISO 9001 and PED accreditations guarantee seamless global fulfillment. Incorporate our sa240/a240 uns s34800 for mission-critical builds—query for volume pricing and prompt shipment. Analogous stabilizers: sa240/a240 uns s34565, sa240/a240 uns s34809, or sa240/a240 uns s35045.

Content Summary

Gangsteel Comprehensive Guide to ASME SA240 ASTM A240 UNS S34800 stainless steel sheet plate strip, a low-cobalt, Nb-stabilized austenitic grade for nuclear and corrosion-prone settings. Covering chemical composition, mechanical properties, international equivalents, specifications, applications, advantages, and pricing from Gangsteel, it highlights why this material is ideal for reactor internals, pressure vessels, and general high-purity service. With detailed tables and FAQs, discover how Gangsteel's expertise ensures quality and global delivery.

What is ASME SA240 ASTM A240 UNS S34800 Stainless Steel Sheet Plate Strip?

ASME SA240 ASTM A240 UNS S34800 stainless steel sheet plate stripis a hot-rolled, cold-rolled, or strip form from the austenitic family, stabilized with columbium (niobium) and limited cobalt for sensitization resistance in nuclear contexts. Under ASME SA240 for pressure vessels and ASTM A240 for general applications, it's annealed for optimal wrought performance. The low Co (≤0.20%) minimizes activation under neutron flux, while Nb binds carbon to prevent intergranular attack.

Outshining 304/316 in weldability and radiation stability, UNS S34800 stainless steel sheet plate strip resists corrosion in mildly aggressive media up to 800°C. Density: 8.0 g/cm³ for versatile fabrication into reactor tubing, valve trim, and structural elements. Gangsteel exports volumes with ISO 9001/PED compliance. Related: sa240/a240 uns s35135 or sa240/a240 uns s35315.

Key Chemical Composition of UNS S34800 Stainless Steel Sheet Plate Strip

ASME SA240 ASTM A240 UNS S34800 stainless steel sheet plate strip's balance ensures nuclear viability. Per ASTM A240/SA240:

Fortifies UNS S34800 stainless steel sheet plate strip for reactors. Gangsteel's PMI validates. Like: sa240/a240 uns s38100 or sa240/a240 uns s38815.

Mechanical Properties and Specifications

ASME SA240 ASTM A240 UNS S34800 stainless steel sheet plate stripyields solid annealed metrics:

Annealed/pickled; temper available. ASME SA240 vessels; ASTM A240 fittings. Gangsteel's precision cuts. Kin: sa240/a240 uns s31200 or sa240/a240 uns s31260.

Equivalent Materials for UNS S34800 Stainless Steel Sheet Plate Strip

Gangsteel's cross-border options:

Harmonize on stability. Details: sa240/a240 uns s32001 or sa240/a240 uns s32003.

Available Specifications and Sizes for UNS S34800 Stainless Steel Sheet Plate Strip

Gangsteel's ASME SA240 ASTM A240 UNS S34800 stainless steel sheet plate strip:

Density: 8.0 g/cm³. Custom for sa240/a240 uns s32101.

Applications of ASME SA240 ASTM A240 UNS S34800 Stainless Steel Sheet Plate Strip

UNS S34800 stainless steel sheet plate stripfor specialized corrosion:

• Nuclear Power: Reactor internals, coolant piping (low Co activation).
• Pressure Vessels: Welded components in mildly corrosive media.
• Chemical Processing: Heat exchangers, tanks for organics.
• Power Generation: Steam lines, turbine parts.
• Aerospace: Structural elements in low-Co needs.

Gangsteel's minimize activation risks. Pair: sa240/a240 uns s32900.

Advantages of Choosing Gangsteel for Your UNS S34800 Stainless Steel Needs

Gangsteel's ASME SA240 ASTM A240 UNS S34800 stainless steel sheet plate strip:

• Nuclear Expertise: 20+ years, 50+ countries, CE/ABS/DNV low-Co compliant.
• Verification: EN 10204/3.1, UT, third-party nuclear quals.
• Adaptation: Finishes, strip widths tailored.
• Sustainable Sourcing: Recycled with traceability.

Trusted support. More: sa240/a240 uns s32906.

Why UNS S34800 Excels in Corrosion Resistance

ASME SA240 ASTM A240 UNS S34800 stainless steel sheet plate stripthwarts sensitization via Nb (10xC-1.1%), maintaining integrity post-weld up to 800°C in mildly aggressive. Low Co curtails neutron-induced activity. Matches 347 but safer for nuclear (Co <0.2%). NACE endorses welds.

Gangsteel's stabilizes. Vs. sa240/a240 uns s32950.

Pricing for ASME SA240 ASTM A240 UNS S34800 Stainless Steel Sheet Plate Strip

Gangsteel's UNS S34800:

• Standard Sheet/Strip (1-5mm): $4,200-$6,000/ton (FOB Shanghai).
• Plate (10-50mm): $4,700-$6,500/ton.
• Custom: +10-15%.

1 ton min; 15% bulk. admin@gangsteel.com. https://gangsteel.net. Cf. sa240/a240 uns s32803.

FAQ: Common Questions About ASME SA240 ASTM A240 UNS S34800 Stainless Steel Sheet Plate Strip

What is UNS S34800 stainless steel used for?

UNS S34800(Type 348) is a low-cobalt variant of 347 stainless steel, primarily for nuclear reactor components like coolant piping, control rod drives, and pressure vessels where minimal cobalt activation under neutron bombardment is critical (Co ≤0.20%). It resists sensitization in weld heat-affected zones thanks to Nb stabilization, suitable for temperatures up to 800°C in mildly corrosive or oxidizing media. Gangsteel supplies ASME/ASTM-compliant sheet plate strip for vessels and general nuclear fabrication, with proven deployment in PWR/BWR internals reducing radiation buildup 50% vs. standard 347. For non-nuclear, see sa240/a240 uns s31200.

What are the differences between UNS S34800 and 347 stainless steel?

UNS S34800mirrors 347 (S34700) in Cr (17-19%), Ni (9-13%), and Nb stabilization but caps Co at 0.20% max (vs. no limit in 347) to limit neutron activation in nuclear settings, with slightly tighter C (≤0.08%) for purity. Both yield 205 MPa min, but S34800's low Co cuts long-term radioactivity by 40-60%, ideal for reactor cores; 347 suits general heat/corrosion. Cost: S34800 10-15% higher due to Co control. Gangsteel certifies S34800 for nuclear quals like ASME NCA-3800. Equiv: sa240/a240 uns s31260.

Is UNS S34800 stainless steel weldable?

Yes, UNS S34800 offers excellent weldability akin to 347, using GTAW/SMAW with ER347 fillers; Nb (8xC-1.0%) prevents carbide precipitation in 425-900°C zones, eliminating need for PWHT in most cases, though optional 1050-1120°C anneal restores full ductility. Preheat 100-150°C for thick sections (>10mm) to curb cracking; interpass <200°C. ASTM A262 Practice E tests confirm no intergranular attack post-weld. Gangsteel includes weld procedure specs and certs for nuclear code compliance, supporting multi-pass fabrication with minimal distortion. Guides: sa240/a240 uns s32001.

What is the density of UNS S34800 stainless steel?

ASME SA240 ASTM A240 UNS S34800 stainless steel sheet plate stripdensity is 8.0 g/cm³ (0.289 lb/in³), standard for 300-series austenitics, allowing compact nuclear designs without compromising impact toughness or thermal conductivity. This equates to ~15% lighter than ferritics, easing handling in reactor assembly. Gangsteel leverages it for optimized logistics and cost modeling.

How much does UNS S34800 stainless steel cost per kg?

Gangsteel prices UNS S34800 at ~$2.10-$2.90/kg for standard sheet/strip (FOB Shanghai), reflecting Nb/Co controls; plate/custom adds 8-12%. Minimum 1 ton order qualifies for 15% volume discount. Prices vary with Ni/Cr markets; latest quotes via admin@gangsteel.com include nuclear adders if certified. Compared to 347: 5-10% premium for low Co. Reference: sa240/a240 uns s32003.

Can UNS S34800 be heat treated?

UNS S34800undergoes solution annealing at 1050-1120°C followed by rapid water quenching to dissolve carbides and restore corrosion resistance; Nb stabilization obviates stabilization anneal, but stress relief at 900-955°C (2 hours) suits formed parts to minimize distortion. Avoid 425-900°C sensitization range >1 hour. Gangsteel performs certified treatments with microstructure verification (ASTM A262 E) for nuclear-grade uniformity, ensuring creep resistance up to 650°C. Detailed protocols: sa240/a240 uns s32101.

What certifications are available for Gangsteel UNS S34800 sheets?

Gangsteel's UNS S34800 sheet plate strip comes with EN 10204/3.1 MTCs covering full chemistry, tensile/impact tests, and heat analysis; includes PMI, UT per ASTM A578, and third-party inspections (SGS/BV/TUV) for nuclear readiness. Complies with ASME Section II/IX, ASTM A240, and PED 2014/68/EU; optional NQA-1 for nuclear quality assurance and low Co verification per EPRI guidelines. ISO 9001 ensures end-to-end traceability from melt to shipment. Explore: sa240/a240 uns s32900.

Contact Gangsteel Today for ASME SA240 ASTM A240 UNS S34800 Stainless Steel Sheet Plate Strip

Obtain certified ASME SA240 ASTM A240 UNS S34800 stainless steel sheet plate strip via Gangsteel. https://gangsteel.net or admin@gangsteel.com for samples/MTCs/quotes. Shanghai/Rotterdam warehouses expedite worldwide—partner for excellence! Check sa240/a240 uns s32906.

Keywords: ASME SA240 UNS S34800, Type 348 stainless steel sheet plate strip, Gangsteel supplier