ASME SA240 / ASTM A240 UNS S30415 Stainless Steel sheet

 

ASME SA240 / ASTM A240 UNS S30415 STAINLESS STEEL PLATE, SHEET, AND STRIP FOR PRESSURE VESSELS for sales

For applications requiring excellent high-temperature strength, superior corrosion resistance, and good weldability, ASME SA240/ASTM A240 UNS S30415 Stainless Steel Sheet is an exceptional choice.

 

As a leading uns stainless supplier, Gangsteel specializes in providing high-quality sa 240/a 240 uns s30415 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 S30415 chemical composition, mechanical properties, corrosion resistance, weldability, stainless steel surface finishes, equivalent materials, specifications, applications, and competitive ASME SA240/ASTM A240 UNS S30415 price per kg. Whether you're an engineer designing high-temperature equipment or a procurement specialist sourcing for chemical processing applications, this article will clarify why 304H stainless steel with nitrogen enhancement (UNS S30415) is a trusted option. Explore our sa 240/a 240 uns stainless grades portfolio for related grades like sa 240/a 240 uns s30451, sa 240/a 240 uns s30452, sa 240/a 240 uns s30453, sa 240/a 240 uns s30500, sa 240/a 240 uns s30600, sa 240/a 240 uns s30601, sa 240/a 240 uns s30615, and others.

Why Choose ASME SA240/ASTM A240 UNS S30415 Stainless Steel Sheet?

 

ASME SA240/ASTM A240 UNS S30415, often referred to as a nitrogen-enhanced variant of 304H stainless steel, is an austenitic stainless steel with 17.0-19.0% chromium, 9.0-11.0% nickel, 0.12-0.18% nitrogen, and a carbon content of 0.04-0.10%. It is engineered for high-temperature applications, offering excellent creep resistance, enhanced corrosion resistance, and good weldability. The nitrogen addition improves strength and pitting resistance compared to sa 240/a 240 uns s30400, making it suitable for industries such as power generation, chemical processing, and high-temperature equipment manufacturing.

The ASME SA240/ASTM A240 UNS S30415 stainless steel sheet provides superior high-temperature performance compared to sa 240/a 240 uns s30451 and sa 240/a 240 uns s30453, while offering better corrosion resistance than sa 240/a 240 uns s30500. Its balanced properties make it a versatile choice for demanding environments requiring both strength and corrosion resistance.

Key benefits of ASME SA240/ASTM A240 UNS S30415 stainless steel sheet include:

• High-Temperature Strength: Nitrogen (0.12-0.18%) and controlled carbon content enhance creep resistance, outperforming sa 240/a 240 uns s30409.
• Excellent Corrosion Resistance: High chromium and nickel content provide good resistance to oxidation and corrosion in mild to moderately aggressive environments.
• Good Weldability: Controlled carbon content minimizes carbide precipitation, ensuring reliable welded joints compared to sa 240/a 240 uns s30909.
• Versatility: Suitable for high-temperature applications in power generation and chemical processing, offering performance comparable to sa 240/a 240 uns s30815.

Case Study: A power generation plant in India used sa 240/a 240 uns s30415 sheets for boiler components, achieving a 25% longer service life compared to sa 240/a 240 uns s30400 due to its enhanced high-temperature strength and corrosion resistance.

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ASME SA240/ASTM A240 UNS S30415 Corrosion Resistance

 

ASME SA240/ASTM A240 UNS S30415offers excellent corrosion resistance in mild to moderately aggressive environments, particularly at elevated temperatures. Its 17.0-19.0% chromium and 9.0-11.0% nickel content, combined with 0.12-0.18% nitrogen, provide a robust oxide layer and enhanced pitting resistance, with a pitting resistance equivalent number (PREN) of ~18-20. This makes it suitable for applications like boiler tubes and chemical processing equipment, outperforming sa 240/a 240 uns s30500 and sa 240/a 240 uns s30451. For highly corrosive environments, such as chloride-rich conditions, grades like sa 240/a 240 uns s31254 or sa 240/a 240 uns s31635 are recommended.

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ASME SA240/ASTM A240 UNS S30415 Weldability

 

The controlled carbon content (0.04-0.10%) of ASME SA240/ASTM A240 UNS S30415 ensures good weldability by reducing the risk of carbide precipitation and intergranular corrosion during welding, making it suitable for welded structures in high-temperature applications. It can be welded using common techniques such as TIG, MIG, and resistance welding, with appropriate filler materials to maintain corrosion resistance and strength. Compared to sa 240/a 240 uns s30409, UNS S30415 offers improved weldability due to its nitrogen enhancement and controlled carbon content. For applications requiring superior weldability, sa 240/a 240 uns s30453 is a viable alternative.

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ASME SA240/ASTM A240 UNS S30415 Stainless Steel Surface

 

The surface finish of ASME SA240/ASTM A240 UNS S30415 stainless steel sheet significantly impacts its aesthetic appeal, functionality, and application suitability. Gangsteel offers a variety of surface finishes to meet diverse project requirements, as detailed below:

Surface Finish	Definition/Feature	Summary of Manufacturing Method	Application/Use
NO.1	Silver white, matte	Hot rolled to specified thickness, followed by heat treatment and pickling	Chemical tank, pipe, no need for surface gloss purposes
2B	Stronger gloss than NO.2D	Cold rolled, heat treated, pickled, and lightly cold rolled by polishing rollers	Medical equipment, food industry, construction material, kitchen utensils, general materials
NO.2D/2BB	Silver white	Heat treatment and pickling after cold rolling	General materials, deep drawing materials
NO.3	Rough grinding	Polished with No.100 to No.120 abrasives (JIS R6001) or 100~200# grinding belt	Kitchen utensils, building construction, building materials
NO.4 (4K)	Intermediate grinding	Polished with No.150 to No.180 abrasives (JIS R6001) or 150~180# stone abrasive belt	Kitchen utensils, building construction, medical equipment, building materials
NO.240	Fine grinding	Grinding with 240# stone abrasive belt	Kitchenware
NO.320	Very fine grinding	Grinding with 320# abrasive belt	Kitchenware
NO.400	Gloss close to BA	Grinding with 400# polishing wheel	General timber, construction timber, kitchen utensils
HL	Hairline grinding, continuous polishing streaks	Polished with suitable grain size abrasive (150~240#) for hairline grinding	Building construction, buildings, construction materials
BA (No.6/BA1/BA0)	Bright as a mirror	Bright heat treatment after cold rolling, high surface reflectivity	Kitchen utensils, electric equipment, building construction, building materials
NO.7	Close to mirror polishing	Grinding with 600# rotary polishing wheel	For art and decoration
NO.8 (Mirror/8K)	Shining like a mirror	Grinding mirrors with polishing wheels	Building construction, reflector, for decoration

These surface finishes allow sa 240/a 240 uns s30415 to be tailored for aesthetic or functional requirements, such as the NO.1 finish for high-temperature equipment or the BA finish for decorative applications.

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ASME SA240/ASTM A240 UNS S30415 Chemical Composition

 

The ASME SA240/ASTM A240 UNS S30415 chemical composition is optimized for high-temperature strength, corrosion resistance, and weldability, compliant with sa 240/a 240 uns stainless grades standards.

The high chromium (17.0-19.0%) and nickel (9.0-11.0%) content, combined with nitrogen (0.12-0.18%) and controlled carbon (0.04-0.10%), provide excellent corrosion resistance and creep strength compared to sa 240/a 240 uns s30451 and sa 240/a 240 uns s30453.

Element	Percentage (%)
Chromium (Cr)	17.0 – 19.0
Nickel (Ni)	9.0 – 11.0
Nitrogen (N)	0.12 – 0.18
Carbon (C)	0.04 – 0.10
Manganese (Mn)	≤ 2.0
Silicon (Si)	≤ 1.0
Phosphorus (P)	≤ 0.045
Sulfur (S)	≤ 0.030
Iron (Fe)	Balance (~60%)

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ASME SA240/ASTM A240 UNS S30415 Mechanical Properties

 

The ASME SA240/ASTM A240 UNS S30415 mechanical properties offer a balance of high-temperature strength, good ductility, and excellent corrosion resistance, suitable for high-temperature applications.

These properties ensure that ASME SA240/ASTM A240 UNS S30415 stainless steel sheet can withstand elevated temperatures and mechanical stresses in aggressive environments. Solution annealing at 1040-1120°C (1904-2048°F) optimizes UNS S30415 mechanical properties for strength and corrosion resistance.

Property	Value at 20°C
Tensile Strength (MPa)	≥ 515 (75 ksi)
Yield Strength (MPa)	≥ 205 (30 ksi)
Elongation (%)	≥ 40
Hardness (HBW)	≤ 217
Density	7.93 g/cm³ (0.286 lb/in³)

At Gangsteel, we’ve seen clients use sa 240/a 240 uns s30415 sheets in chemical processing equipment, where its high-temperature strength and corrosion resistance provide advantages over sa 240/a 240 uns s30500.

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ASME SA240/ASTM A240 UNS S30415 Specifications and Forms

 

As a trusted uns stainless supplier, Gangsteel supplies sa 240/a 240 uns s30415 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 section)
• Standards: ASTM A240, ASME SA240
• Applications: sa 240/a 240 uns s30415 sheets for boiler tubes, UNS S30415 plates for chemical processing 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 tubes

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 S30415 bars for high-temperature 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 power generation 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 ASME SA240/ASTM A240 UNS S30415 material specifications.

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Applications of ASME SA240/ASTM A240 UNS S30415 Stainless Steel Sheet

 

ASME SA240/ASTM A240 UNS S30415 stainless steel sheetis tailored for industries requiring high-temperature strength and corrosion resistance in demanding environments. Its nitrogen-enhanced austenitic structure ensures durability and performance in various applications.

Key ASME SA240/ASTM A240 UNS S30415 applications include:

• Power Generation: sa 240/a 240 uns s30415 sheets for boiler tubes and heat exchangers.
• Chemical Processing: UNS S30415 plates for reactors and storage tanks handling moderately aggressive chemicals.
• High-Temperature Equipment: ASME SA240/ASTM A240 UNS S30415 bars for furnace components and exhaust systems.
• Petrochemical: Piping and fittings for high-temperature environments.
• General-Purpose: Components requiring corrosion resistance and creep strength at elevated temperatures.

Case Study: A chemical processing plant in India used sa 240/a 240 uns s30415 sheets for reactor vessels, achieving a 30% longer service life compared to sa 240/a 240 uns s30451 due to its enhanced creep resistance and corrosion properties.

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ASME SA240/ASTM A240 UNS S30415 vs Related Grades

 

To aid in material selection, here’s a comparison of sa 240/a 240 uns s30415 with sa 240/a 240 uns s30451, sa 240/a 240 uns s30452, sa 240/a 240 uns s30453, sa 240/a 240 uns s30500, sa 240/a 240 uns s30600, sa 240/a 240 uns s30601, and sa 240/a 240 uns s30615:

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 S30415	ASME SA240 UNS S30451	ASME SA240 UNS S30452	ASME SA240 UNS S30453	ASME SA240 UNS S30500	ASME SA240 UNS S30600	ASME SA240 UNS S30601	ASME SA240 UNS S30615
UNS Number	S30415	S30451	S30452	S30453	S30500	S30600	S30601	S30615
Type	Austenitic	Austenitic	Austenitic	Austenitic	Austenitic	Austenitic	Austenitic	Austenitic
Chromium Content	17.0-19.0%	18.0-20.0%	18.0-20.0%	18.0-20.0%	17.0-19.0%	17.0-18.5%	17.0-18.5%	18.0-19.5%
Nickel Content	9.0-11.0%	8.0-10.5%	8.0-10.5%	8.0-10.5%	10.5-13.0%	14.0-15.5%	14.0-15.5%	13.5-15.0%
Manganese Content	≤ 2.0%	≤ 2.0%	≤ 2.0%	≤ 2.0%	≤ 2.0%	≤ 2.0%	≤ 2.0%	≤ 2.0%
Molybdenum Content	-	-	-	-	-	0.10-0.35%	0.10-0.35%	0.80-1.20%
Nitrogen Content	0.12-0.18%	0.10-0.16%	0.16-0.30%	0.10-0.16%	-	≤ 0.05%	≤ 0.05%	0.15-0.25%
Carbon Content	0.04-0.10%	≤ 0.08%	≤ 0.08%	≤ 0.03%	≤ 0.12%	≤ 0.018%	≤ 0.018%	≤ 0.05%
Corrosion Resistance	Excellent in mild environments	Good in mild environments	Good in mild environments	Good in mild environments	Good in mild environments	Good in mild environments	Good in mild environments	Excellent in high-temperature environments
Strength	High (High-temperature)	Moderate	Moderate	Moderate	Moderate	Low	Low	High (High-temperature)
Temp Range	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 870°C (1598°F)	Up to 870°C (1598°F)	Up to 870°C (1598°F)	Up to 950°C (1742°F)
Cost (USD/kg)	4-7	4-7	4-7	4-7	4-7	5-8	5-8	6-9
Applications	Power generation, chemical processing	General-purpose, structural	General-purpose, structural	Welded structures	Kitchenware, architectural	Chemical, food processing	Chemical, food processing	High-temperature equipment

• ASME SA240/ASTM A240 UNS S30415 vs ASME SA240 UNS S30451: S30415 offers superior high-temperature strength and creep resistance due to nitrogen and controlled carbon, while sa 240/a 240 uns s30451 is suited for general-purpose applications.
• ASME SA240/ASTM A240 UNS S30415 vs ASME SA240 UNS S30452: S30415 provides better high-temperature performance, while sa 240/a 240 uns s30452 offers higher nitrogen for improved strength at room temperature.
• ASME SA240/ASTM A240 UNS S30415 vs ASME SA240 UNS S30453: S30415 excels in high-temperature applications, while sa 240/a 240 uns s30453 offers superior weldability due to lower carbon content.
• ASME SA240/ASTM A240 UNS S30415 vs ASME SA240 UNS S30500: S30415 provides better high-temperature strength, while sa 240/a 240 uns s30500 is more formable for kitchenware applications.
• ASME SA240/ASTM A240 UNS S30415 vs ASME SA240 UNS S30600/S30601: S30415 is optimized for high-temperature environments, while sa 240/a 240 uns s30600 and sa 240/a 240 uns s30601 are suited for low-carbon, corrosion-resistant applications.
• ASME SA240/ASTM A240 UNS S30415 vs ASME SA240 UNS S30615: S30415 offers balanced properties for high-temperature applications, while sa 240/a 240 uns s30615 provides superior oxidation resistance at higher temperatures.

Conclusion: Choose sa 240/a 240 uns s30415 for high-temperature, corrosion-resistant applications, sa 240/a 240 uns s30451 or sa 240/a 240 uns s30452 for general-purpose strength, sa 240/a 240 uns s30453 for weldable structures, sa 240/a 240 uns s30500 for formable applications, or sa 240/a 240 uns s30600, sa 240/a 240 uns s30601, or sa 240/a 240 uns s30615 for specific corrosion-resistant or high-temperature needs.

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ASME SA240/ASTM A240 UNS S30415 Equivalent Materials

 

ASME SA240/ASTM A240 UNS S30415aligns 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 S30415 a versatile choice for high-temperature applications.

Standard	Grade
UNS	S30415
W.Nr.	1.4818
EN	X6CrNiSiNCe19-10
ASTM	A240
ASME	SA240

Note: ASME SA240/ASTM A240 UNS S30415 equivalent grades comply with sa 240/a 240 uns stainless grades standards, offering interchangeability with sa 240/a 240 uns s30409 for similar high-temperature applications.

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ASME SA240/ASTM A240 UNS S30415 Allowable Stress

 

The allowable stress values for ASME SA240/ASTM A240 UNS S30415, per ASME BPVC Section II, Part D, ensure reliable performance in high-temperature environments.

These values reflect the material’s ability to withstand mechanical stresses at elevated temperatures while maintaining corrosion resistance.

Temperature (°C)	Allowable Stress (MPa)
100	135
200	125
300	115
400	105
500	95

Note: These values ensure sa 240/a 240 uns s30415 performs reliably in boiler and chemical processing applications.

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ASME SA240/ASTM A240 UNS S30415 Price

 

The ASME SA240/ASTM A240 UNS S30415 price per kg ranges from USD 4-7 per kg (FOB), influenced by several factors:

The high-temperature strength and corrosion resistance of ASME SA240/ASTM A240 UNS S30415 make it a valuable choice for power generation and chemical processing applications.

• Alloy Content: Nitrogen and higher nickel content increase costs slightly compared to sa 240/a 240 uns s30451 but reduce costs compared to sa 240/a 240 uns s30815.
• Market Demand: High demand in power generation and chemical industries drives UNS S30415 price.
• Product Form: ASME SA240/ASTM A240 UNS S30415 sheets may cost more than coils due to processing complexity.
• Global Supply Chain: Freight and raw material availability impact ASME SA240/ASTM A240 UNS S30415 cost.

For a precise ASME SA240/ASTM A240 UNS S30415 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 s30415 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 s30451: Nitrogen-enhanced austenitic stainless steel for improved strength.
• sa 240/a 240 uns s30452: High-nitrogen austenitic stainless steel for enhanced strength.
• sa 240/a 240 uns s30453: Low-carbon austenitic stainless steel for enhanced weldability.
• sa 240/a 240 uns s30500: Austenitic stainless steel for formable applications.
• sa 240/a 240 uns s30600: Low-carbon austenitic stainless steel for corrosion resistance.
• sa 240/a 240 uns s30601: Low-carbon austenitic stainless steel for chemical processing.
• 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.

Note: These grades complement sa 240/a 240 uns s30415 in high-temperature, chemical, and corrosion-resistant 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 S30415 and ASME SA240 UNS S30409?

A: ASME SA240/ASTM A240 UNS S30415 offers enhanced high-temperature strength and pitting resistance due to nitrogen addition, while sa 240/a 240 uns s30409 is a standard high-carbon grade for high-temperature applications.

Q: Is ASME SA240/ASTM A240 UNS S30415 suitable for high-temperature applications?

A: Yes, its nitrogen-enhanced composition and controlled carbon content make it ideal for boiler tubes and chemical reactors compared to sa 240/a 240 uns s30451.

Q: How does the price of ASME SA240/ASTM A240 UNS S30415 compare to ASME SA240 UNS S30815?

A: ASME SA240/ASTM A240 UNS S30415 is typically 20-30% less expensive than sa 240/a 240 uns s30815 due to lower alloy content, offering cost-effective performance for high-temperature applications.

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Contact Us

 

For sa 240/a 240 uns s30415 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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