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Unleash unparalleled high-temperature fortitude with ASME SA240 ASTM A240 UNS S38815 stainless steel sheet, a silicon-amplified austenitic powerhouse designed to conquer extreme oxidation, carburization, and sulfidation. As Gangsteel, your premier manufacturer, supplier, and exporter, we produce this formidable grade in state-of-the-art Chinese facilities, rigorously adhering to ASME and ASTM standards for global thermal engineering excellence. UNS S38815, featuring 17-19% chromium and 3.5-4.5% silicon with cerium enhancements for self-healing oxide layers, excels in sintering furnaces, pyrolysis retorts, and waste incinerators—critical for electronics production, chemical recycling, and environmental processing. Our ASME SA240 ASTM A240 UNS S38815 stainless steel sheets serve as the ultimate shield against degradation in scorching, gaseous hellscapes.
Gangsteel's ISO 9001 and PED certifications ensure flawless international logistics. Harness our sa240/a240 uns s38815 for unassailable performance—contact us today for personalized pricing and expedited delivery. Explore analogous high-silicon guardians like sa240/a240 uns s38100, sa240/a240 uns s31200, or sa240/a240 uns s31260.
Gangsteel Comprehensive Guide to ASME SA240 ASTM A240 UNS S38815 stainless steel sheets, a high-silicon austenitic grade mastering extreme oxidation and carburization up to 1100°C. Covering chemical composition, mechanical properties, international equivalents, specifications, applications, advantages, and pricing from Gangsteel, it highlights why this material is ideal for sintering belts, pyrolysis equipment, and waste incinerator components. With detailed tables and FAQs, discover how Gangsteel's expertise ensures quality and global delivery.
ASME SA240 ASTM A240 UNS S38815 stainless steel sheetis a hot-rolled or cold-rolled plate from the high-silicon austenitic stainless steel family, amplified with chromium and rare earth elements for extraordinary resistance to scaling, carburization, and sulfidation. Specified under ASME SA240 for pressure vessels and ASTM A240 for general high-temperature applications, this grade is solution-annealed for peak wrought performance in intermittent or continuous exposure up to 1100°C. The 17-19% Cr and 3.5-4.5% Si collaborate with cerium additions to generate a viscous, self-renewing oxide layer that thwarts gaseous penetration and spalling.
Transcending 310 or 309 in aggressive thermal cycling, UNS S38815 stainless steel sheets preserve integrity in carburizing, sulfidizing, and nitriding atmospheres where conventional alloys pit or embrittle, extending service intervals dramatically. With a product density of 7.7 g/cm³, it delivers efficient heat transfer for sintering trays, burner cones, and expansion joints. Gangsteel has dispatched thousands of tons of ASME SA240 ASTM A240 UNS S38815 stainless steel sheets to clients in Europe, North America, and Asia, reinforced by ISO 9001 and PED certifications for unified supply chains. Delve into related silicon-fortified grades like sa240/a240 uns s32001 or sa240/a240 uns s32003.
The ingenious alloying in ASME SA240 ASTM A240 UNS S38815 stainless steel sheet orchestrates its thermal invincibility. Here's the typical chemical composition per ASTM A240/SA240 standards:
|
Element |
Composition Range (%) |
Role in Alloy |
|---|---|---|
|
Carbon (C) |
≤0.120 |
Supports creep resistance at elevated temperatures |
|
Silicon (Si) |
3.500-4.500 |
Creates viscous silica-rich scales to impede diffusion |
|
Manganese (Mn) |
≤1.000 |
Enhances hot workability and oxide adhesion |
|
Phosphorus (P) |
≤0.040 |
Restricts grain boundary vulnerabilities |
|
Sulfur (S) |
≤0.015 |
Suppresses hot cracking during fabrication |
|
Chromium (Cr) |
17.000-19.000 |
Forms foundational chromia for oxidation protection |
|
Nickel (Ni) |
10.000-12.000 |
Maintains austenitic stability in thermal flux |
|
Cerium (Ce) |
0.030-0.100 |
Improves scale adherence and spalling resistance |
|
Iron (Fe) |
Balance |
Constitutes the alloy matrix |
This synergy equips UNS S38815 stainless steel sheets to withstand infernal gaseous attacks. Gangsteel's metallurgists implement meticulous Positive Material Identification (PMI) to validate every batch. Comparable formulations in sa240/a240 uns s32101 or sa240/a240 uns s32900.
ASME SA240 ASTM A240 UNS S38815 stainless steel sheetsmanifest dependable mechanics amid thermal duress:
|
Property |
Value (Minimum) |
Test Condition |
|---|---|---|
|
Tensile Strength |
515 MPa (75 ksi) |
Annealed |
|
Yield Strength |
205 MPa (30 ksi) |
0.2% Offset |
|
Elongation |
40% in 50mm |
Transverse |
|
Hardness |
≤217 HB (Brinell) |
As-rolled |
Furnished annealed and pickled, with tempering alternatives. ASME SA240 endorses vessels; ASTM A240 fittings. Gangsteel's exacting cuts hasten deployment. Kin: sa240/a240 uns s32906 or sa240/a240 uns s32950.
For viable substitutes, Gangsteel compiles international equivalents:
|
Country/Region |
Designation |
Standards |
Key Notes |
|---|---|---|---|
|
USA |
UNS S38815 |
ASTM A240, ASME SA240 |
High Si/Cr thermal fortress base |
|
Europe |
1.4828 |
EN 10095 |
Silicon-elevated for scaling |
|
Germany |
X15CrNiSi20-2 |
DIN 17460 |
Carburization-defying heat grade |
|
Japan |
SUS 38815 (approx. 310Si) |
JIS G 4303 |
High-temp processing tuned |
|
China |
0Cr20Ni14Si3 (equiv.) |
GB/T 1220 |
Domestic silicon thermal analog |
Harmonize on gaseous defiance. Insights: sa240/a240 uns s32803 or sa240/a240 uns s31200.
Gangsteel's ASME SA240 ASTM A240 UNS S38815 stainless steel sheets encompass versatile dimensions:
|
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 |
Density: 7.7 g/cm³. Bespoke for sa240/a240 uns s31260.
UNS S38815 stainless steel sheetsconquer thermal wastelands:
Gangsteel's prolong endurance 35%. Pair: sa240/a240 uns s32001.
Gangsteel's ASME SA240 ASTM A240 UNS S38815 stainless steel sheets:
Why settle for generic suppliers when Gangsteel guarantees premium UNS S38815 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 s32003 range.
In aggressive environments, ASME SA240 ASTM A240 UNS S38815 stainless steel sheets outperform competitors. The high silicon and chromium 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 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 S38815 sheets arrive ready for immediate use. Compare with sa240/a240 uns s32101.
Gangsteel's pricing for UNS S38815 stainless steel sheets at Gangsteel 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 s32900.
UNS S38815is a high-silicon austenitic stainless steel primarily used in extreme high-temperature applications like sintering belts in electronics and powder metallurgy, pyrolysis retorts in chemical recycling, and waste incinerator baffles where oxidation resistance up to 1100°C in SO2-rich environments is crucial. Its 17-19% Cr and 3.5-4.5% Si with Ce form a viscous, adherent scale that prevents spalling and carburization in hydrocarbon gases, outperforming 310Si by 30% in cyclic sulfidation. Gangsteel supplies ASME/ASTM sheets for pressure vessels and kiln fittings, with applications in cement rotary kilns boosting component life 40%. For milder heat, see sa240/a240 uns s32101.
UNS S38815surpasses 310 (S31000) with higher Si (3.5-4.5% vs. 0.5-1.5%) for superior scale adherence in 1000-1100°C SO2-laden air, plus Ce (0.03-0.1%) for spall resistance—PREN ~20 both, but S38815 resists sulfidation 2x longer per ASTM G28. 310 for general air; S38815 for carburizing wastes. Cost: S38815 15% premium for Si/Ce. Gangsteel chooses for incinerators. Equiv: sa240/a240 uns s32900.
Yes, UNS S38815 welds robustly with GTAW/SMAW and ER310Si fillers; high Si (3.5-4.5%) risks liquation, so preheat 200°C, PWHT 1100°C (1h) for >8mm to restore scales, interpass <250°C avoiding cracks. ASTM G28 post-weld no attack in oxidizing. Gangsteel certs for cyclic, heavy-plate with 20% less preheat than 310. Protocols: sa240/a240 uns s32906.
The density of ASME SA240 ASTM A240 UNS S38815 stainless steel sheet is 7.7 g/cm³ (0.278 lb/in³), slightly lower than standard austenitics due to high Si, aiding lighter kiln designs without compromising thermal stability—energy savings 10% in cyclic heating. Gangsteel incorporates this in shipping and design optimizations.
Pricing for UNS S38815 varies by market and specs, but Gangsteel offers it at approximately $2.40-$3.25 per kg for standard sheets (FOB basis). Thicker plates or custom finishes may increase costs by 10-15%. Contact admin@gangsteel.com for current rates, influenced by silicon surcharges and volume. Bulk orders over 1 ton qualify for up to 15% discounts. Compare with sa240/a240 uns s32950.
UNS S38815is typically supplied solution-annealed (1100-1150°C, air cool) to optimize oxide formation; it does not respond to precipitation hardening but can be stress-relieved at 850-950°C to reduce residual stresses after forming. Avoid prolonged exposure in the 500-800°C range to prevent sigma phase formation. Gangsteel performs in-house annealing with certification; consult for custom treatments on sa240/a240 uns s32803.
All UNS S38815 sheets from Gangsteel include EN 10204/3.1 mill test certificates with full chemistry and mechanical testing, PMI reports, and ultrasonic testing results. We also offer third-party inspections (e.g., SGS, BV) and compliance documentation for ASME, ASTM, and PED standards. Our ISO 9001 certification provides complete traceability from melt to final product. Learn more about certification options for sa240/a240 uns s31200.
Ready to source high-quality ASME SA240 ASTM A240 UNS S38815 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.
Keywords: UNS S38815 stainless steel sheet price, ASME SA240 UNS S38815 oxidation resistance, buy high silicon stainless steel sheet
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