ASME SA240 / ASTM A240 UNS S41500 Stainless Steel sheet

 

ASME SA240 / ASTM A240 UNS S41500 Stainless Steel Sheet,plate,strip supplier

 

For applications requiring high strength, excellent corrosion resistance, and good weldability in corrosive environments, ASME SA240/ASTM A240 UNS S41500 Stainless Steel Sheet (commonly known as F6NM or 13Cr-4Ni) is a superior choice.

As a leading uns stainless supplier, Gangsteel specializes in providing high-quality sa 240/a 240 uns s41500 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 manufacturing capabilities, Gangsteel ensures rapid delivery and tailored solutions for clients worldwide.

This comprehensive guide explores the ASME SA240/ASTM A240 UNS S41500 chemical composition, density, mechanical properties, corrosion resistance, weldability, stainless steel surface finishes, equivalent materials, specifications, applications, and competitive ASME SA240/ASTM A240 UNS S41500 price per kg.

 

Whether you're an engineer designing components for marine or oil and gas applications or a procurement specialist sourcing for high-strength corrosive environments, this article will clarify why F6NM stainless steel (UNS S41500) is a trusted option.

 

 

Explore our sa 240/a 240 uns stainless grades portfolio for related grades like sa 240/a 240 uns s30615, sa 240/a 240 uns s30815, sa 240/a 240 uns s30909, sa 240/a 240 uns s30940, sa 240/a 240 uns s30941, sa 240/a 240 uns s31040, sa 240/a 240 uns s31041, sa 240/a 240 uns s31050, sa 240/a 240 uns s31060, sa 240/a 240 uns s31254, sa 240/a 240 uns s31266, sa 240/a 240 uns s31635, sa 240/a 240 uns s31640, sa 240/a 240 uns s31651, sa 240/a 240 uns s31653, and sa 240/a 240 uns s41008.

Why Choose ASME SA240/ASTM A240 UNS S41500 Stainless Steel Sheet?

 

ASME SA240/ASTM A240 UNS S41500, known as F6NM or 13Cr-4Ni, is a martensitic stainless steel with 11.5-14.0% chromium, 3.5-5.5% nickel, and 0.5-1.0% molybdenum. It is designed for applications requiring high strength, excellent corrosion resistance, and good weldability, making it ideal for industries such as oil and gas, marine, and power generation. The martensitic structure, combined with nickel and molybdenum, provides superior toughness and corrosion resistance compared to standard martensitic grades like UNS S41000, while its low carbon content (≤ 0.05%) ensures good weldability. It offers excellent resistance to pitting and crevice corrosion in chloride environments, with a pitting resistance equivalent number (PREN) of ~13-16.

The ASME SA240/ASTM A240 UNS S41500 stainless steel sheet offers higher strength and toughness compared to sa 240/a 240 uns s41008 and better corrosion resistance in chloride environments than sa 240/a 240 uns s31635 due to its optimized composition. While it is less corrosion-resistant than super-austenitic grades like sa 240/a 240 uns s31254, its combination of strength, toughness, and corrosion resistance makes it a preferred choice for demanding applications like valve components and offshore equipment.

Key benefits of ASME SA240/ASTM A240 UNS S41500 stainless steel sheet include:

 

• High Strength and Toughness: Martensitic structure with nickel addition provides exceptional mechanical properties, outperforming sa 240/a 240 uns s41008.
• Excellent Corrosion Resistance: Molybdenum (0.5-1.0%) enhances pitting resistance in chloride environments, surpassing sa 240/a 240 uns s31651 in certain conditions.
• Good Weldability: Low carbon content (≤ 0.05%) minimizes carbide precipitation, improving weldability compared to standard martensitic grades.
• Versatility: Ideal for high-strength components in corrosive environments, such as marine and oil and gas applications.

Case Study: An oil and gas company in India used sa 240/a 240 uns s41500 sheets for valve components in an offshore platform, achieving a 30% increase in component lifespan compared to sa 240/a 240 uns s31640 due to its superior strength and corrosion resistance.

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ASME SA240/ASTM A240 UNS S41500 Density

 

The density of ASME SA240/ASTM A240 UNS S41500 stainless steel sheet is approximately 7.80 g/cm³ (0.282 lb/in³). This density is typical for martensitic stainless steels, reflecting its composition with moderate chromium and nickel content. The consistent density ensures predictable performance in applications requiring precise weight calculations, such as valve components and offshore equipment. Compared to grades like sa 240/a 240 uns s41008 (7.70 g/cm³) and sa 240/a 240 uns s31635 (8.00 g/cm³), the density is slightly higher than ferritic grades but lower than austenitic grades, making UNS S41500 a balanced choice for high-strength, corrosion-resistant applications.

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ASME SA240/ASTM A240 UNS S41500 Corrosion Resistance

 

ASME SA240/ASTM A240 UNS S41500offers excellent corrosion resistance in chloride-containing and moderately corrosive environments, such as marine and oil and gas settings. Its 11.5-14.0% chromium, 3.5-5.5% nickel, and 0.5-1.0% molybdenum content provide a robust protective oxide layer and good pitting resistance, with a PREN of ~13-16. This makes it suitable for applications like valve components and offshore equipment, outperforming sa 240/a 240 uns s41008 in chloride environments due to molybdenum addition. For highly corrosive environments, such as severe chloride conditions, grades like sa 240/a 240 uns s31254 or sa 240/a 240 uns s31266 are recommended.

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ASME SA240/ASTM A240 UNS S41500 Weldability

 

The low carbon content (≤ 0.05%) of ASME SA240/ASTM A240 UNS S41500 ensures good weldability by minimizing carbide precipitation and reducing the risk of cracking during welding, making it more weldable than standard martensitic grades like UNS S41000. It can be welded using common techniques such as TIG, MIG, and shielded metal arc welding, with matching or austenitic filler materials (e.g., 309L or 316L) to maintain corrosion resistance and toughness. Compared to sa 240/a 240 uns s31653, UNS S41500 offers comparable weldability but higher strength due to its martensitic structure. Preheating and post-weld heat treatment may be required to prevent cracking in heavy sections. For applications requiring superior weldability and corrosion resistance, sa 240/a 240 uns s31254 is a viable alternative.

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ASME SA240/ASTM A240 UNS S41500 Stainless Steel Surface Finishes

 

The surface finish of ASME SA240/ASTM A240 UNS S41500 stainless steel sheet enhances its aesthetic appeal, functionality, and suitability for specific applications. Gangsteel offers a range of surface finishes tailored to meet diverse project requirements. Below is a modern, concise presentation format for improved readability:

Surface Finish Options

• NO.1
  Appearance: Matte, silver-white
  Process: Hot-rolled, annealed, and pickled
  Uses: Industrial tanks, pipes, non-decorative applications
  Benefit: Cost-effective for functional components
• 2B
  Appearance: Smooth, glossy finish
  Process: Cold-rolled, annealed, pickled, and lightly polished
  Uses: Marine components, oil and gas equipment, industrial parts
  Benefit: Balanced aesthetics and corrosion resistance
• NO.2D/2BB
  Appearance: Smooth, non-reflective
  Process: Cold-rolled, annealed, and pickled
  Uses: Deep-drawn components, general-purpose materials
  Benefit: Ideal for forming processes
• NO.3
  Appearance: Coarsely polished
  Process: Polished with 100-120 grit abrasives (JIS R6001)
  Uses: Industrial panels, structural components
  Benefit: Enhanced surface texture for aesthetics
• NO.4 (4K)
  Appearance: Finely polished, satin-like
  Process: Polished with 150-180 grit abrasives (JIS R6001)
  Uses: Architectural panels, marine fittings
  Benefit: Attractive finish with good cleanability
• NO.240
  Appearance: Fine, uniform texture
  Process: Ground with 240 grit abrasive belt
  Uses: Precision components, industrial equipment
  Benefit: Consistent, smooth surface
• NO.320
  Appearance: Very fine texture
  Process: Ground with 320 grit abrasive belt
  Uses: High-end industrial components
  Benefit: Enhanced smoothness and aesthetics
• NO.400
  Appearance: High gloss, near-mirror
  Process: Polished with 400 grit polishing wheel
  Uses: Decorative trim, valve components
  Benefit: Polished look for semi-decorative applications
• HL
  Appearance: Linear, hairline pattern
  Process: Polished with 150-240 grit abrasives for continuous streaks
  Uses: Architectural cladding, structural components
  Benefit: Elegant, directional aesthetic
• BA (No.6/BA1/BA0)
  Appearance: Mirror-like, highly reflective
  Process: Cold-rolled with bright annealing
  Uses: Decorative surfaces, high-end fittings
  Benefit: Maximum reflectivity for premium aesthetics
• NO.7
  Appearance: Near-mirror polish
  Process: Polished with 600 grit polishing wheel
  Uses: Art installations, high-end decor
  Benefit: Close to mirror finish with less processing
• NO.8 (Mirror/8K)
  Appearance: True mirror finish
  Process: Polished with fine polishing wheels
  Uses: Reflectors, architectural accents
  Benefit: Ultimate reflective surface for luxury applications

 

These surface finishes allow sa 240/a 240 uns s41500 to be customized for aesthetic or functional requirements, such as the 2B finish for oil and gas components or the NO.4 finish for marine applications.

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ASME SA240/ASTM A240 UNS S41500 Chemical Composition

 

The ASME SA240/ASTM A240 UNS S41500 chemical composition is optimized for high strength, corrosion resistance, and weldability, compliant with sa 240/a 240 uns stainless grades standards.

The high chromium (11.5-14.0%), nickel (3.5-5.5%), and molybdenum (0.5-1.0%) content, combined with low carbon (≤ 0.05%), provide excellent corrosion resistance and toughness compared to sa 240/a 240 uns s41008.

Element	Percentage (%)
Chromium (Cr)	11.5 – 14.0
Nickel (Ni)	3.5 – 5.5
Molybdenum (Mo)	0.5 – 1.0
Carbon (C)	≤ 0.05
Manganese (Mn)	≤ 1.0
Silicon (Si)	≤ 0.60
Phosphorus (P)	≤ 0.030
Sulfur (S)	≤ 0.030
Iron (Fe)	Balance (~80%)

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ASME SA240/ASTM A240 UNS S41500 Mechanical Properties

 

The ASME SA240/ASTM A240 UNS S41500 mechanical properties offer a balance of high strength, excellent toughness, and good corrosion resistance, suitable for demanding applications.

These properties ensure that ASME SA240/ASTM A240 UNS S41500 stainless steel sheet can withstand significant mechanical stresses in corrosive environments. Heat treatment (e.g., quenching and tempering at 600-700°C) optimizes UNS S41500 mechanical properties for strength and toughness.

Property	Value at 20°C
Tensile Strength (MPa)	≥ 690 (100 ksi)
Yield Strength (MPa)	≥ 415 (60 ksi)
Elongation (%)	≥ 15
Hardness (HBW)	≤ 277
Density	7.80 g/cm³ (0.282 lb/in³)

At Gangsteel, we’ve seen clients use sa 240/a 240 uns s41500 sheets in offshore valve components, where its strength and corrosion resistance provide advantages over sa 240/a 240 uns s31651.

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ASME SA240/ASTM A240 UNS S41500 Specifications and Forms

 

As a trusted uns stainless supplier, Gangsteel supplies sa 240/a 240 uns s41500 sheets, plates, coils, bars, and custom components, compliant with sa 240/a 240 uns stainless grades standards:

Our advanced manufacturing facilities 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 50 mm (plate)
• Width: Up to 2000 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 (see Stainless Steel Surface Finishes section)
• Standards: ASTM A240, ASME SA240
• Applications: sa 240/a 240 uns s41500 sheets for valve components, UNS S41500 plates for offshore equipment

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 marine components

Bar

• Diameter: 6 mm to 300 mm
• Length: Up to 12000 mm
• Finish: Hot-rolled, cold-drawn, centerless ground
• Standards: ASTM A479, ASME SA-479
• Applications: ASME SA240/ASTM A240 UNS S41500 bars for high-strength structural components

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 oil and gas and marine 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 ASME SA240/ASTM A240 UNS S41500 material specifications.

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Applications of ASME SA240/ASTM A240 UNS S41500 Stainless Steel Sheet

 

ASME SA240/ASTM A240 UNS S41500 stainless steel sheetis tailored for industries requiring high strength, excellent corrosion resistance, and good weldability in corrosive environments. Its martensitic structure ensures durability in demanding applications.

Key ASME SA240/ASTM A240 UNS S41500 applications include:

• Oil and Gas: sa 240/a 240 uns s41500 sheets for valve components and offshore platform fittings.
• Marine: UNS S41500 plates for structural components in chloride-rich environments.
• Power Generation: ASME SA240/ASTM A240 UNS S41500 bars for turbine blades and high-strength fittings.
• Chemical Processing: Piping and equipment requiring strength and corrosion resistance.
• General-Purpose: High-strength components in moderately corrosive environments.

Case Study: A marine engineering firm in India used sa 240/a 240 uns s41500 sheets for structural components in a coastal facility, achieving a 25% increase in durability compared to sa 240/a 240 uns s31653 due to its high strength and toughness.

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ASME SA240/ASTM A240 UNS S41500 vs Related Grades

 

To aid in material selection, here’s a comparison of sa 240/a 240 uns s41500 with six related grades: sa 240/a 240 uns s41008, sa 240/a 240 uns s31635, sa 240/a 240 uns s31640, sa 240/a 240 uns s31651, sa 240/a 240 uns s31653, and sa 240/a 240 uns s31254. This comparison is limited to seven grades to ensure display compatibility, focusing on grades relevant to corrosion resistance and high-strength applications.

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

Property	ASME SA240/ASTM A240 UNS S41500	ASME SA240 UNS S41008	ASME SA240 UNS S31635	ASME SA240 UNS S31640	ASME SA240 UNS S31651	ASME SA240 UNS S31653	ASME SA240 UNS S31254
UNS Number	S41500	S41008	S31635	S31640	S31651	S31653	S31254
Type	Martensitic	Ferritic	Austenitic	Austenitic	Austenitic	Austenitic	Austenitic
Chromium Content	11.5-14.0%	11.5-13.5%	16.0-18.0%	16.0-18.0%	16.0-18.0%	16.0-18.0%	19.5-20.5%
Nickel Content	3.5-5.5%	≤ 0.60%	10.0-14.0%	10.0-14.0%	10.0-14.0%	10.0-14.0%	17.5-18.5%
Manganese Content	≤ 1.0	≤ 1.0	≤ 2.0	≤ 2.0	≤ 2.0	≤ 2.0	≤ 1.0
Molybdenum Content	0.5-1.0%	-	2.0-3.0%	2.0-3.0%	2.0-3.0%	2.0-3.0%	6.0-6.5%
Nitrogen Content	-	-	-	-	0.10-0.16%	0.10-0.16%	0.18-0.22%
Carbon Content	≤ 0.05%	≤ 0.08%	≤ 0.08%	≤ 0.08%	≤ 0.08%	≤ 0.030%	≤ 0.020%
Corrosion Resistance	Excellent in chloride environments	Good in mild environments	Good in chloride environments	Good in chloride environments	Good in chloride environments	Good in chloride environments	Exceptional in chloride environments
Strength	High (Martensitic)	High (Ferritic)	Moderate	Moderate	High (Nitrogen-enhanced)	Moderate	High (Corrosion resistance)
Temp Range	Up to 650°C (1202°F)	Up to 650°C (1202°F)	Up to 870°C (1598°F)	Up to 870°C (1598°F)	Up to 870°C (1598°F)	Up to 870°C (1598°F)	Up to 400°C (752°F)
Cost (USD/kg)	4-7	3-5	5-8	5-8	5-8	5-8	8-12
Applications	Oil and gas, marine, power generation	Automotive, industrial	Chemical, pharmaceutical	Chemical, pharmaceutical	Chemical, structural	Chemical, pharmaceutical	Marine, chemical processing

• ASME SA240/ASTM A240 UNS S41500 vs ASME SA240 UNS S41008: S41500 offers higher strength and better corrosion resistance due to nickel and molybdenum, while sa 240/a 240 uns s41008 is more cost-effective for mild environments.
• ASME SA240/ASTM A240 UNS S41500 vs ASME SA240 UNS S31635: S41500 provides higher strength and toughness, while sa 240/a 240 uns s31635 offers better high-temperature corrosion resistance.
• ASME SA240/ASTM A240 UNS S41500 vs ASME SA240 UNS S31640: S41500 excels in high-strength applications, while sa 240/a 240 uns s31640 provides better weldability for chloride environments.
• ASME SA240/ASTM A240 UNS S41500 vs ASME SA240 UNS S31651: S41500 offers superior strength and toughness, while sa 240/a 240 uns s31651 provides higher strength due to nitrogen but lower toughness.
• ASME SA240/ASTM A240 UNS S41500 vs ASME SA240 UNS S31653: S41500 is stronger and tougher, while sa 240/a 240 uns s31653 offers superior weldability due to lower carbon content.
• ASME SA240/ASTM A240 UNS S41500 vs ASME SA240 UNS S31254: S41500 is more cost-effective and stronger, while sa 240/a 240 uns s31254 provides exceptional corrosion resistance in severe chloride environments.

Conclusion: Choose sa 240/a 240 uns s41500 for high-strength, corrosion-resistant applications in chloride environments, sa 240/a 240 uns s41008 for cost-effective mild environments, sa 240/a 240 uns s31635 or sa 240/a 240 uns s31640 for high-temperature chemical applications, sa 240/a 240 uns s31651 for high-strength structural needs, sa 240/a 240 uns s31653 for weldable chemical applications, or sa 240/a 240 uns s31254 for severe corrosive environments.

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ASME SA240/ASTM A240 UNS S41500 Equivalent Materials

 

ASME SA240/ASTM A240 UNS S41500aligns 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 ASME SA240/ASTM A240 UNS S41500 a versatile choice for high-strength, corrosion-resistant applications.

Standard	Grade
UNS	S41500
W.Nr.	1.4313
EN	X3CrNiMo13-4
ASTM	A240
ASME	SA240

Note: ASME SA240/ASTM A240 UNS S41500 equivalent grades comply with sa 240/a 240 uns stainless grades standards, offering interchangeability with other martensitic grades for similar applications.

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ASME SA240/ASTM A240 UNS S41500 Allowable Stress

 

The allowable stress values for ASME SA240/ASTM A240 UNS S41500, per ASME BPVC Section II, Part D, ensure reliable performance in chloride-containing and moderately corrosive environments.

These values reflect the material’s ability to withstand high mechanical stresses while maintaining corrosion resistance and toughness.

Temperature (°C)	Allowable Stress (MPa)
100	180
200	165
300	150
400	140
500	130

Note: These values ensure sa 240/a 240 uns s41500 performs reliably in oil and gas and marine applications.

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ASME SA240/ASTM A240 UNS S41500 Price

 

The ASME SA240/ASTM A240 UNS S41500 price per kg ranges from USD 4-7 per kg (FOB), influenced by several factors:

The high strength, excellent corrosion resistance, and good weldability of ASME SA240/ASTM A240 UNS S41500 make it a valuable choice for oil and gas and marine applications.

• Alloy Content: Nickel and molybdenum content increase costs compared to sa 240/a 240 uns s41008 but reduce costs compared to sa 240/a 240 uns s31254.
• Market Demand: High demand in oil and gas and marine industries drives UNS S41500 price.
• Product Form: ASME SA240/ASTM A240 UNS S41500 sheets may cost more than coils due to processing complexity.
• Global Supply Chain: Freight and raw material availability impact ASME SA240/ASTM A240 UNS S41500 cost.

For a precise ASME SA240/ASTM A240 UNS S41500 price per kg or bulk discounts, contact Gangsteel at admin@gangsteel.com.

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Related Stainless Steel Grades

 

As a trusted uns stainless supplier, Gangsteel offers a wide range of sa 240/a 240 uns stainless grades to complement sa 240/a 240 uns s41500 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 s30615: Austenitic stainless steel for high-temperature oxidation resistance.
• sa 240/a 240 uns s30815: Austenitic stainless steel for extreme high-temperature applications.
• sa 240/a 240 uns s30909: High-carbon austenitic stainless steel for high-temperature strength.
• sa 240/a 240 uns s30940: Niobium-stabilized austenitic stainless steel for high-temperature applications.
• sa 240/a 240 uns s30941: High-carbon, niobium-stabilized austenitic stainless steel for creep resistance.
• sa 240/a 240 uns s31040: Niobium-stabilized austenitic stainless steel for high-temperature applications.
• sa 240/a 240 uns s31041: High-carbon, niobium-stabilized austenitic stainless steel for creep resistance.
• sa 240/a 240 uns s31050: Low-carbon, molybdenum-enhanced austenitic stainless steel for chemical processing.
• sa 240/a 240 uns s31060: Austenitic stainless steel for high-temperature applications.
• sa 240/a 240 uns s31254: High-molybdenum austenitic stainless steel for aggressive environments.
• sa 240/a 240 uns s31266: High-alloy austenitic stainless steel for extreme corrosion resistance.
• sa 240/a 240 uns s31635: Titanium-stabilized austenitic stainless steel for high-temperature applications.
• sa 240/a 240 uns s31640: Niobium-stabilized austenitic stainless steel for corrosion resistance.
• sa 240/a 240 uns s31651: Nitrogen-enhanced austenitic stainless steel for improved strength.
• sa 240/a 240 uns s31653: Low-carbon, nitrogen-enhanced austenitic stainless steel for weldability.
• sa 240/a 240 uns s41008: Ferritic stainless steel for mild environments and high strength.

Note: These grades complement sa 240/a 240 uns s41500 in corrosion-resistant and high-strength 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 ASME SA240/ASTM A240 UNS S41500 and ASME SA240 UNS S41008?

A: ASME SA240/ASTM A240 UNS S41500 offers higher strength and better corrosion resistance due to nickel and molybdenum additions, while sa 240/a 240 uns s41008 is more cost-effective for mild environments.

Q: Is ASME SA240/ASTM A240 UNS S41500 suitable for marine applications?

A: Yes, its excellent corrosion resistance and high strength make it ideal for marine components compared to sa 240/a 240 uns s31653.

Q: How does the price of ASME SA240/ASTM A240 UNS S41500 compare to ASME SA240 UNS S31254?

A: ASME SA240/ASTM A240 UNS S41500 is typically 40-50% less expensive than sa 240/a 240 uns s31254 due to lower alloy content, offering cost-effective performance for chloride-containing environments.

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Contact Us

 

For sa 240/a 240 uns s41500 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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Long-Tail Keywords

 

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