ASTM A240/ASME SA240 UNS S31254 Stainless Steel 254smo

 

ASTM A240/ASME SA240 UNS S31254 Stainless Steel 254SMO Sheet for sale

 

For applications requiring exceptional corrosion resistance in highly aggressive environments, ASTM A240/ASME SA240 UNS S31254 Stainless Steel 254SMO Sheet is a premier choice. As a leading uns stainless supplier, Gangsteel offers high-quality sa 240/a 240 uns s31254 sheets, plates, coils, bars, and custom components, all compliant with sa 240/a 240 uns stainless grades standards, including ASTM A240 and ASME SA240. With an inventory exceeding 600 tons and advanced processing capabilities, we ensure rapid delivery and tailored solutions for clients worldwide.

This comprehensive guide explores the ASTM A240/ASME SA240 UNS S31254 chemical composition, mechanical properties, equivalent materials, specifications, applications, and competitive ASTM A240/ASME SA240 UNS S31254 price per kg. Whether you're an engineer designing marine equipment or a procurement specialist sourcing for chemical processing systems, this article will clarify why 254SMO stainless steel is a trusted option. Explore our sa 240/a 240 uns stainless grades portfolio for related grades like sa 240/a 240 uns n08904, sa 240/a 240 uns s31603, and sa 240/a 240 uns s31703.

Why Choose ASTM A240/ASME SA240 UNS S31254 Stainless Steel 254SMO Sheet?

 

ASTM A240/ASME SA240 UNS S31254, commonly known as 254SMO stainless steel, is a high-alloy austenitic stainless steel with 19.5-20.5% chromium, 17.5-18.5% nickel, 6.0-6.5% molybdenum, and 0.5-1.0% copper. The high molybdenum and nitrogen content provide exceptional resistance to pitting, crevice corrosion, and stress corrosion cracking in chloride-rich and acidic environments, making it ideal for marine, chemical, and pulp and paper applications. The low carbon content enhances weldability, ensuring suitability for heavy welding without post-weld annealing.

The high alloy content gives ASTM A240/ASME SA240 UNS S31254 stainless steel 254SMO sheet a significant advantage over sa 240/a 240 uns n08904 in extremely corrosive environments, with a pitting resistance equivalent number (PREN) of ~42-44. Its robust properties make it a preferred choice for critical applications.

Key benefits of ASTM A240/ASME SA240 UNS S31254 stainless steel 254SMO sheet include:

• Exceptional Corrosion Resistance: High molybdenum (6.0-6.5%) and nitrogen (0.18-0.22%) provide superior resistance to chlorides and acids, outperforming sa 240/a 240 uns n08904 in chloride-rich environments.
• Enhanced Weldability: Low carbon content (≤ 0.02%) minimizes intergranular corrosion during welding, ideal for heavy welding applications.
• High Strength: Offers higher strength than standard austenitic grades like sa 240/a 240 uns s31603, suitable for structural applications.
• Versatility: Ideal for marine, chemical, and pulp and paper applications requiring extreme corrosion resistance.

Case Study: A desalination plant in the UAE used sa 240/a 240 uns s31254 sheets for seawater piping, achieving a 50% longer service life due to its superior chloride resistance compared to sa 240/a 240 uns n08904.

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ASTM A240/ASME SA240 UNS S31254 Chemical Composition

 

The ASTM A240/ASME SA240 UNS S31254 chemical composition is optimized for exceptional corrosion resistance, weldability, and strength, compliant with sa 240/a 240 uns stainless grades standards.

The high molybdenum (6.0-6.5%) and nitrogen (0.18-0.22%) content provide a PREN of ~42-44, making ASTM A240/ASME SA240 UNS S31254 superior to sa 240/a 240 uns n08904 and sa 240/a 240 uns s31703 for chloride and acid resistance. The low carbon content (≤ 0.02%) ensures excellent weldability, minimizing intergranular corrosion.

Element	Percentage (%)
Chromium (Cr)	19.5 – 20.5
Nickel (Ni)	17.5 – 18.5
Molybdenum (Mo)	6.0 – 6.5
Copper (Cu)	0.5 – 1.0
Nitrogen (N)	0.18 – 0.22
Carbon (C)	≤ 0.02
Manganese (Mn)	≤ 1.0
Silicon (Si)	≤ 0.80
Phosphorus (P)	≤ 0.030
Sulfur (S)	≤ 0.010
Iron (Fe)	Balance (~55%)

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ASTM A240/ASME SA240 UNS S31254 Mechanical Properties

 

The ASTM A240/ASME SA240 UNS S31254 mechanical properties offer a balance of high strength, ductility, and corrosion resistance, suitable for demanding applications.

These properties ensure that ASTM A240/ASME SA240 UNS S31254 stainless steel 254SMO sheet can withstand mechanical stresses in highly corrosive environments. Solution annealing at 1150-1200°C (2102-2192°F) optimizes UNS S31254 mechanical properties for corrosion resistance and strength.

Property	Value at 20°C
Tensile Strength (MPa)	≥ 650 (94 ksi)
Yield Strength (MPa)	≥ 300 (44 ksi)
Elongation (%)	≥ 35
Hardness (HRB)	≤ 96
Density	8.0 g/cm³ (0.289 lb/in³)

At Gangsteel, we’ve seen clients use sa 240/a 240 uns s31254 sheets in marine piping systems, where its performance surpasses sa 240/a 240 uns n08904 in chloride-rich environments.

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ASTM A240/ASME SA240 UNS S31254 Specifications and Forms

 

As a trusted uns stainless supplier, Gangsteel supplies sa 240/a 240 uns s31254 sheets, plates, coils, bars, and custom components, compliant with sa 240/a 240 uns stainless grades standards:

Our advanced processing capabilities ensure precision and quality, meeting the diverse needs of global projects, from standard sizes to custom-cut components.

Sheet and Plate

• Thickness: 0.1 mm to 6 mm (sheet), 0.5 mm to 100 mm (plate)
• Width: Up to 4200 mm
• Length: 2000 mm to 12000 mm (or coiled for sheet)
• Surface Finish: Hot-rolled, cold-rolled, annealed, pickled, 2B, No.1, No.4, BA, or customized
• Standards: ASTM A240, ASME SA240
• Applications: sa 240/a 240 uns s31254 sheets for marine piping, UNS S31254 plates for chemical tanks

Coil

• Thickness: 0.1 mm to 6 mm
• Width: Up to 2000 mm
• Standards: ASTM A240, ASME SA240
• Applications: Continuous production for welded pipes and tubes

Bar

• Diameter: 6 mm to 500 mm
• Length: Up to 12000 mm
• Finish: Hot-rolled, cold-drawn, centerless ground
• Standards: ASTM A479, ASME SA-479
• Applications: ASTM A240/ASME SA240 UNS S31254 bars for fittings and fasteners

Custom Components

• Types: Flanges (ASME B16.5), fittings, CNC-machined parts, stainless cutting sheet part
• Tolerances: ±0.05 mm for precision components
• Applications: Tailored solutions for marine and chemical industries

Note: Need a specific size or finish? Gangsteel offers custom solutions, including precision cutting and heat treatments, to meet sa 240/a 240 uns stainless grades requirements. Contact us at admin@gangsteel.com for bespoke ASTM A240/ASME SA240 UNS S31254 material specifications.

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Applications of ASTM A240/ASME SA240 UNS S31254 Stainless Steel 254SMO Sheet

 

ASTM A240/ASME SA240 UNS S31254 stainless steel 254SMO sheetis tailored for industries requiring exceptional corrosion resistance in aggressive environments. Its high alloy content ensures superior performance in chloride-rich and acidic conditions.

Key ASTM A240/ASME SA240 UNS S31254 applications include:

• Marine: sa 240/a 240 uns s31254 sheets for seawater piping and fittings.
• Chemical Processing: UNS S31254 plates for reactors and tanks handling acids.
• Pulp and Paper: ASTM A240/ASME SA240 UNS S31254 bars for bleaching equipment.
• Oil and Gas: Components for sour gas and offshore environments.
• Desalination: Equipment requiring extreme chloride resistance.

Case Study: A pulp and paper mill in India used sa 240/a 240 uns s31254 sheets for bleaching equipment, reducing corrosion-related downtime by 45% compared to sa 240/a 240 uns n08904.

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ASTM A240/ASME SA240 UNS S31254 vs Related Grades

 

To aid in material selection, here’s a comparison of sa 240/a 240 uns s31254 with sa 240/a 240 uns n08904, sa 240/a 240 uns s31603, and sa 240/a 240 uns s31703:

This comparison highlights the unique advantages of each grade, helping you select the optimal material for your project requirements.

Property	ASTM A240/ASME SA240 UNS S31254	ASME SA240 UNS N08904	ASME SA240 UNS S31603	ASME SA240 UNS S31703
UNS Number	S31254	N08904	S31603	S31703
Type	Austenitic	Austenitic	Austenitic	Austenitic
Chromium Content	19.5-20.5%	19.0-23.0%	16.0-18.0%	18.0-20.0%
Nickel Content	17.5-18.5%	23.0-28.0%	10.0-14.0%	11.0-15.0%
Molybdenum Content	6.0-6.5%	4.0-5.0%	2.0-3.0%	3.0-4.0%
Copper Content	0.5-1.0%	1.0-2.0%	-	-
Nitrogen Content	0.18-0.22%	-	-	-
Carbon Content	≤ 0.02%	≤ 0.02%	≤ 0.03%	≤ 0.03%
Corrosion Resistance	Exceptional in chlorides	Superior in acids, chlorides	Excellent, enhanced weldability	Superior in acids
Strength	High	Moderate	Moderate	Moderate
Temp Range	Up to 400°C (752°F)	Up to 400°C (752°F)	Up to 870°C (1598°F)	Up to 870°C (1598°F)
Cost (USD/kg)	12-25	10-20	6-12	8-15
Applications	Marine, chemical, pulp/paper	Chemical, marine	Welded marine, chemical	Welded chemical, pulp/paper

• ASTM A240/ASME SA240 UNS S31254 vs ASME SA240 UNS N08904: S31254 offers superior chloride resistance due to higher molybdenum and nitrogen, while sa 240/a 240 uns n08904 excels in sulfuric acid environments.
• ASTM A240/ASME SA240 UNS S31254 vs ASME SA240 UNS S31603: S31254 provides exceptional corrosion resistance in aggressive environments, while sa 240/a 240 uns s31603 is cost-effective for welded chloride-resistant applications.
• ASTM A240/ASME SA240 UNS S31254 vs ASME SA240 UNS S31703: S31254 outperforms in chloride-rich environments, while sa 240/a 240 uns s31703 is suitable for acidic environments with lower cost.

Conclusion: Choose sa 240/a 240 uns s31254 for exceptional chloride resistance, sa 240/a 240 uns n08904 for acid resistance, sa 240/a 240 uns s31603 for cost-effective welded applications, or sa 240/a 240 uns s31703 for acidic environments.

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ASTM A240/ASME SA240 UNS S31254 Equivalent Materials

 

ASTM A240/ASME SA240 UNS S31254aligns with international standards for global compatibility, ensuring seamless integration into projects worldwide.

The equivalent grades allow for flexibility in sourcing materials across different regions, making ASTM A240/ASME SA240 UNS S31254 a versatile choice for corrosion-resistant applications.

Standard	Grade
UNS	S31254
W.Nr.	1.4547
EN	X1CrNiMoCuN20-18-7
JIS	SUS 312L
ASTM	A240 254smo
ASME	SA240 254smo

Note: ASTM A240/ASME SA240 UNS S31254 equivalent grades comply with sa 240/a 240 uns stainless grades and EN standards, offering interchangeability with sa 240/a 240 uns n08904 for less aggressive environments.

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ASTM A240/ASME SA240 UNS S31254 Allowable Stress

 

The allowable stress values for ASTM A240/ASME SA240 UNS S31254, per ASME BPVC Section II, Part D, ensure reliable performance in corrosive environments.

These values reflect the material’s ability to withstand mechanical stresses while maintaining corrosion resistance in chloride-rich and acidic conditions.

Temperature (°C)	Allowable Stress (MPa)
100	200
200	185
300	175
400	165

Note: These values ensure sa 240/a 240 uns s31254 performs reliably in marine piping and chemical reactors.

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ASTM A240/ASME SA240 UNS S31254 Price

 

The ASTM A240/ASME SA240 UNS S31254 price per kg ranges from USD 12-25 per kg (FOB), influenced by several factors:

The superior corrosion resistance and high alloy content make ASTM A240/ASME SA240 UNS S31254 a premium choice for demanding applications in aggressive environments.

• Alloy Content: High molybdenum (6.0-6.5%) and nitrogen (0.18-0.22%) increase costs compared to sa 240/a 240 uns n08904.
• Market Demand: High demand in marine and chemical industries drives UNS S31254 price.
• Product Form: ASTM A240/ASME SA240 UNS S31254 plates may cost more than sheets due to processing complexity.
• Global Supply Chain: Freight and raw material availability impact ASTM A240/ASME SA240 UNS S31254 cost.

For a precise ASTM A240/ASME SA240 UNS S31254 price per kg or bulk discounts, contact Gangsteel at admin@gangsteel.com.

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Related Stainless Steel Grades

 

As a leading uns stainless supplier, Gangsteel offers a wide range of sa 240/a 240 uns stainless grades to complement sa 240/a 240 uns s31254 for various applications:

This diverse portfolio ensures clients can find the ideal material for their specific project needs, from corrosion resistance to high-temperature performance.

• sa 240/a 240 uns s30400: General-purpose austenitic stainless steel.
• sa 240/a 240 uns s30403: Low-carbon for enhanced weldability.
• sa 240/a 240 uns s30409: High-carbon for high-temperature strength.
• sa 240/a 240 uns s30908: Low-carbon for moderate high-temperature applications.
• sa 240/a 240 uns s31000: High-carbon for extreme high-temperature strength.
• sa 240/a 240 uns s31008: Low-carbon for enhanced weldability in high-temperature applications.
• sa 240/a 240 uns s31009: High-carbon for enhanced creep resistance.
• sa 240/a 240 uns s31600: Molybdenum-alloyed for chloride resistance.
• sa 240/a 240 uns s31603: Low-carbon for enhanced weldability in chloride environments.
• sa 240/a 240 uns s31700: High corrosion resistance for chemical processing.
• sa 240/a 240 uns s31703: Low-carbon for acidic environments.
• sa 240/a 240 uns s32100: Titanium-stabilized for high-temperature applications.
• sa 240/a 240 uns s32109: High-carbon for enhanced creep resistance.
• sa 240/a 240 uns s34700: Stabilized for high-temperature corrosion resistance.
• sa 240/a 240 uns s34709: Enhanced creep resistance for high-temperature applications.
• sa 240/a 240 uns s30815: High-temperature corrosion resistance.
• sa 240/a 240 uns n08904: Superior sulfuric acid resistance for chemical applications.
• sa 240/a 240 uns s43932: Ferritic for automotive exhaust systems.
• sa 240/a 240 uns s44400: Ferritic with high corrosion resistance for water tanks.
• sa 240/a 240 uns s2304: Lean duplex for structural applications.
• sa 240/a 240 uns s31803: Duplex for marine applications.
• sa 240/a 240 uns s32205: Duplex for enhanced corrosion resistance.
• sa 240/a 240 uns s32750: Super-duplex for aggressive environments.
• sa 240/a 240 uns s32760: Super-duplex for extreme corrosion resistance.
• sa 240/a 240 uns s32520: Duplex for high-strength applications.
• sa 240/a 240 uns s32550: Enhanced sulfuric acid resistance.

Note: These grades complement sa 240/a 240 uns s31254 in marine, chemical, and pulp and paper applications. Contact Gangsteel for a full catalog to find the perfect material for your project.

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FAQ

 

Q: What is the main difference between ASTM A240/ASME SA240 UNS S31254 and ASME SA240 UNS N08904?

A: ASTM A240/ASME SA240 UNS S31254 offers superior chloride resistance due to higher molybdenum and nitrogen content, while sa 240/a 240 uns n08904 excels in sulfuric acid environments.

Q: Is ASTM A240/ASME SA240 UNS S31254 suitable for marine applications?

A: Yes, its high molybdenum and nitrogen content ensure exceptional resistance to chloride corrosion, making it ideal for seawater systems compared to sa 240/a 240 uns s31603.

Q: How does the price of ASTM A240/ASME SA240 UNS S31254 compare to ASME SA240 UNS N08904?

A: ASTM A240/ASME SA240 UNS S31254 is typically 20-30% more expensive than sa 240/a 240 uns n08904 due to higher molybdenum content, offering superior performance in chloride-rich environments.

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Contact Us

 

For sa 240/a 240 uns s31254 quotes, technical data sheets, or custom solutions, contact Gangsteel at admin@gangsteel.com. Explore our sa 240/a 240 uns stainless grades portfolio for more options.

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