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Discover the pinnacle of corrosion-resistant engineering with ASME SA240 ASTM A240 UNS S32654 stainless steel sheet, a super austenitic powerhouse designed for the harshest industrial challenges. At Gangsteel, as a premier manufacturer and exporter, we deliver this elite grade to worldwide clients, leveraging cutting-edge production in China to meet ASME and ASTM standards. Dubbed 654SMO, UNS S32654 excels in ultra-aggressive environments with its high molybdenum and nitrogen alloying, offering unparalleled pitting resistance for sectors like desalination, chemical processing, and offshore energy. Our ASME SA240 ASTM A240 UNS S32654 stainless steel sheets ensure reliability where failure isn't an option.
At Gangsteel, quality is paramount—we adhere to ISO 9001 and PED certifications for seamless global supply. Dive into our sa240/a240 uns s32654 to transform your projects; inquire now for tailored quotes and swift shipping. Explore akin super alloys like sa240/a240 uns s32050, sa240/a240 uns s32615, or sa240/a240 uns s33228.
Gangsteel Comprehensive Guide to ASME SA240 ASTM A240 UNS S32654 stainless steel sheets, a super austenitic grade with exceptional pitting and crevice corrosion resistance in chloride-rich and acidic media. Covering chemical composition, mechanical properties, international equivalents, specifications, applications, advantages, and pricing from Gangsteel, it highlights why this material is ideal for desalination, chemical plants, and offshore platforms. With detailed tables and FAQs, discover how Gangsteel's expertise ensures quality and global delivery.
ASME SA240 ASTM A240 UNS S32654 stainless steel sheetis a hot-rolled or cold-rolled plate from the super austenitic family, fortified with high chromium, nickel, molybdenum, copper, and nitrogen for ultimate corrosion performance. Designated as UNS S32654 under ASME SA240 for pressure vessels and ASTM A240 for general applications, it's renowned as 654SMO for its PREN exceeding 50. This grade thrives in extreme chloride and acidic exposures, resisting pitting and stress cracking where lesser alloys degrade.
Surpassing standard 304 or 316 grades, UNS S32654 stainless steel sheets deliver fortified strength and ductility via nitrogen enhancement, ideal for fabricating critical components like tanks and heat exchangers. With a product density of 8.0 g/cm³, it balances robustness with efficiency. Gangsteel has supplied tons of ASME SA240 ASTM A240 UNS S32654 stainless steel sheets globally, backed by ISO 9001 and PED compliance. Our portfolio includes related super austenitics like sa240/a240 uns s33400 and sa240/a240 uns s34565.
The precise alloying in ASME SA240 ASTM A240 UNS S32654 stainless steel sheet underpins its elite corrosion profile. Per ASTM A240/SA240:
|
Element |
Composition Range (%) |
Role in Alloy |
|---|---|---|
|
Carbon (C) |
≤0.010 |
Minimizes sensitization for weldability |
|
Manganese (Mn) |
≤1.00 |
Boosts nitrogen solubility and toughness |
|
Phosphorus (P) |
≤0.030 |
Limits impurities for ductility |
|
Sulfur (S) |
≤0.010 |
Prevents cracking in hot working |
|
Silicon (Si) |
≤0.50 |
Aids deoxidation and minor scaling resistance |
|
Chromium (Cr) |
24.00-26.00 |
Core pitting and general corrosion barrier |
|
Nickel (Ni) |
21.00-23.00 |
Stabilizes austenite, enhances formability |
|
Molybdenum (Mo) |
7.00-7.50 |
Elevates resistance to localized corrosion |
|
Copper (Cu) |
0.30-0.70 |
Improves sulfuric acid resistance |
|
Nitrogen (N) |
0.45-0.55 |
Hardens without brittleness, boosts PREN |
This blend equips UNS S32654 stainless steel sheets for severe service like seawater or acids. Gangsteel's PMI testing verifies every batch. Comparable: sa240/a240 uns s34800 or sa240/a240 uns s34809.
ASME SA240 ASTM A240 UNS S32654 stainless steel sheetsboast superior mechanics for demanding loads:
|
Property |
Value (Minimum) |
Test Condition |
|---|---|---|
|
Tensile Strength |
690 MPa (100 ksi) |
Annealed |
|
Yield Strength |
310 MPa (45 ksi) |
0.2% Offset |
|
Elongation |
35% in 50mm |
Transverse |
|
Hardness |
≤220 HB (Brinell) |
Solution Annealed |
Supplied annealed and pickled, with tempering options. ASME SA240 suits vessels; ASTM A240 fits fittings. Gangsteel's cut-to-size minimizes waste. Related: sa240/a240 uns s35045 or sa240/a240 uns s35135.
For substitutions, Gangsteel offers international equivalents:
|
Country/Region |
Designation |
Standards |
Key Notes |
|---|---|---|---|
|
USA |
UNS S32654 |
ASTM A240, ASME SA240 |
Base super austenitic |
|
Europe |
X1CrNiMoCuN24-22-8 (1.4652) |
EN 10088, DIN |
High Mo for pitting resistance |
|
Sweden |
654 SMO |
Outokumpu |
Commercial name, similar composition |
|
Japan |
SUS 32654 equiv. (approx. N08904 variant) |
JIS |
Adapted for local standards |
|
China |
00Cr25Ni22Mo7CuN (S32654 equiv.) |
GB/T |
Domestic high-alloy analog |
These align on corrosion and strength. Details on sa240/a240 uns s35315 or sa240/a240 uns s38100.
Gangsteel's ASME SA240 ASTM A240 UNS S32654 stainless steel sheets customize easily:
|
Specification |
Range/Details |
|---|---|
|
Thickness |
0.5 mm to 200 mm |
|
Width |
Up to 3000 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: 8.0 g/cm³ for efficient use. Machining for sa240/a240 uns s38815.
UNS S32654 stainless steel sheetsexcel in extreme corrosion scenarios:
Gangsteel's sheets power global projects, with PREN >50 slashing costs 40% vs. 316L. Pair with sa240/a240 uns s31200.
Gangsteel's ASME SA240 ASTM A240 UNS S32654 stainless steel sheets advantages:
Opt Gangsteel for premium support. More in sa240/a240 uns s31260.
ASME SA240 ASTM A240 UNS S32654 stainless steel sheetsdominate aggressives: 7-7.5% Mo + N yield CPT >90°C in FeCl3, vs. 316L's 35°C. Ideal for seawater, acids. NACE tests affirm weld integrity.
Gangsteel's passivation readies sheets. Compare sa240/a240 uns s32001.
Gangsteel's UNS S32654 pricing, volume-tiered:
Min 1 ton; bulk discounts 15%. Quote: admin@gangsteel.com. Updates at https://gangsteel.net. See sa240/a240 uns s32003.
UNS S32654(654SMO) suits extreme corrosion like desalination evaporators, chemical reactors, and offshore subsea gear. High Mo/N resist pitting in chlorides/acids. Gangsteel supplies ASME/ASTM-compliant for vessels/piping. Similar: sa240/a240 uns s32101.
UNS S32654edges 254SMO with higher Mo (7-7.5% vs. 6%), Cr (24-26% vs. 19-21%), yielding PREN 54 vs. 43 for superior pitting in hot chlorides. S32654 yield 310 MPa vs. 220 MPa. Gangsteel favors S32654 for seawater. Equiv: sa240/a240 uns s32900.
Yes, via GTAW/SMAW with ERNiCrMo-14 fillers. Low C avoids sensitization; anneal post-weld. Gangsteel certs welds. Guides: sa240/a240 uns s32906.
ASME SA240 ASTM A240 UNS S32654density: 8.0 g/cm³ (0.289 lb/in³), austenitic norm. Gangsteel optimizes shipping.
Gangsteel: ~$3.25-$4.90/kg standard (FOB). Varies by spec. Email admin@gangsteel.com. Compare sa240/a240 uns s32950.
Solution-annealed (1170-1205°C, quench) standard. No precipitation hardening; stress-relieve 400-700°C. Gangsteel handles: sa240/a240 uns s32803.
EN 10204/3.1 MTCs, PMI, UT; third-party (SGS/BV); ASME/ASTM/PED. ISO 9001 traceability. More: sa240/a240 uns s32900.
Source elite ASME SA240 ASTM A240 UNS S32654 stainless steel sheets via Gangsteel. https://gangsteel.net or admin@gangsteel.com for samples/quotes. Shanghai/Rotterdam warehouses ship globally—elevate with us! See sa240/a240 uns s31260.
Keywords: ASME SA240 UNS S32654, 654SMO stainless steel sheet, Gangsteel exporter
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