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For applications demanding exceptional high-temperature strength, oxidation resistance, and corrosion resistance, ASME SA240/ASTM A240 UNS S30815 Stainless Steel Sheet (commonly known as 253MA) is a premier choice. As a leading uns stainless supplier, Gangsteel specializes in providing high-quality sa 240/a 240 uns s30815 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 S30815 chemical composition, density, mechanical properties, corrosion resistance, weldability, stainless steel surface finishes, equivalent materials, specifications, applications, and competitive ASME SA240/ASTM A240 UNS S30815 price per kg. Whether you're an engineer designing furnace components or a procurement specialist sourcing for petrochemical applications, this article will clarify why 253MA stainless steel (UNS S30815) 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 s30909, sa 240/a 240 uns s30940, sa 240/a 240 uns s31040, sa 240/a 240 uns s31041, sa 240/a 240 uns s31050, and sa 240/a 240 uns s31060.
ASME SA240/ASTM A240 UNS S30815, known as 253MA, is an austenitic stainless steel with 20.0-22.0% chromium, 10.0-12.0% nickel, 0.05-0.10% carbon, and 0.14-0.20% nitrogen, enhanced with cerium for improved oxidation resistance. It is designed for high-temperature applications requiring exceptional creep strength, oxidation resistance, and good corrosion resistance, making it ideal for industries such as power generation, petrochemical, and furnace manufacturing. The nitrogen and cerium additions enhance high-temperature strength and oxidation resistance compared to sa 240/a 240 uns s30615, while the controlled carbon content ensures good weldability.
The ASME SA240/ASTM A240 UNS S30815 stainless steel sheet offers superior high-temperature performance compared to sa 240/a 240 uns s30909 and better oxidation resistance than sa 240/a 240 uns s31040 due to its cerium content. While it is less corrosion-resistant in highly aggressive environments than grades like sa 240/a 240 uns s31050, its exceptional high-temperature properties make it a preferred choice for furnace and heat exchanger applications.
Key benefits of ASME SA240/ASTM A240 UNS S30815 stainless steel sheet include:
Case Study: A petrochemical plant in India used sa 240/a 240 uns s30815 sheets for furnace tubes, achieving a 35% longer service life compared to sa 240/a 240 uns s30909 due to its superior oxidation resistance and creep strength.
Keywords: ASME SA240/ASTM A240 UNS S30815 stainless steel sheet, UNS S30815 sheet, 253MA stainless steel, high-temperature stainless steel sheet
The density of ASME SA240/ASTM A240 UNS S30815 stainless steel sheet is approximately 7.80 g/cm³ (0.282 lb/in³). This slightly lower density compared to standard austenitic stainless steels (e.g., 7.93 g/cm³ for sa 240/a 240 uns s30400) reflects its unique composition, including cerium and nitrogen. The consistent density ensures predictable performance in applications requiring precise weight calculations, such as furnace components and heat exchangers. Compared to grades like sa 240/a 240 uns s30615 and sa 240/a 240 uns s31050, the density is slightly lower, making UNS S30815 a favorable choice for weight-sensitive high-temperature applications.
Keywords: ASME SA240/ASTM A240 UNS S30815 density, UNS S30815 density, 253MA density
ASME SA240/ASTM A240 UNS S30815offers excellent corrosion resistance in high-temperature and moderately corrosive environments, such as petrochemical and power generation settings. Its 20.0-22.0% chromium, 10.0-12.0% nickel, and 0.14-0.20% nitrogen content, enhanced with cerium, provide a robust protective oxide layer and improved pitting resistance, with a pitting resistance equivalent number (PREN) of ~21-24. This makes it suitable for applications like furnace tubes and heat exchangers, outperforming sa 240/a 240 uns s30909 and sa 240/a 240 uns s31040. For highly corrosive environments, such as chloride-rich conditions, grades like sa 240/a 240 uns s31050 or sa 240/a 240 uns s31254 are recommended.
Keywords: ASME SA240/ASTM A240 UNS S30815 corrosion resistance, UNS S30815 corrosion properties, 253MA corrosion resistance
The controlled carbon content (0.05-0.10%) of ASME SA240/ASTM A240 UNS S30815 ensures good weldability by reducing the risk of carbide precipitation and intergranular corrosion during welding, making it suitable for high-temperature welded structures. It can be welded using common techniques such as TIG, MIG, and shielded metal arc welding, with appropriate filler materials (e.g., 253MA-specific fillers) to maintain corrosion resistance and high-temperature strength. Compared to sa 240/a 240 uns s30615, UNS S30815 offers comparable weldability but is optimized for higher-temperature applications. For applications requiring superior weldability, sa 240/a 240 uns s31050 with its lower carbon content is a viable alternative.
Keywords: ASME SA240/ASTM A240 UNS S30815 weldability, UNS S30815 welding properties, 253MA weldability
The surface finish of ASME SA240/ASTM A240 UNS S30815 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 s30815 to be tailored for aesthetic or functional requirements, such as the NO.1 finish for furnace components or the 2B finish for petrochemical applications.
Keywords: ASME SA240/ASTM A240 UNS S30815 surface finish, UNS S30815 stainless steel surface, 253MA surface finishes
The ASME SA240/ASTM A240 UNS S30815 chemical composition is optimized for high-temperature strength, oxidation resistance, and corrosion resistance, compliant with sa 240/a 240 uns stainless grades standards.
The high chromium (20.0-22.0%) and nitrogen (0.14-0.20%) content, along with cerium, provide exceptional high-temperature performance, while the nickel (10.0-12.0%) ensures good corrosion resistance.
|
Element |
Percentage (%) |
|---|---|
|
Chromium (Cr) |
20.0 – 22.0 |
|
Nickel (Ni) |
10.0 – 12.0 |
|
Nitrogen (N) |
0.14 – 0.20 |
|
Carbon (C) |
0.05 – 0.10 |
|
Manganese (Mn) |
≤ 0.80 |
|
Silicon (Si) |
1.40 – 2.00 |
|
Phosphorus (P) |
≤ 0.040 |
|
Sulfur (S) |
≤ 0.030 |
|
Cerium (Ce) |
0.03 – 0.08 |
|
Iron (Fe) |
Balance (~65%) |
Keywords: ASME SA240/ASTM A240 UNS S30815 chemical composition, UNS S30815 composition, 253MA chemistry, ASME SA240 Gr S30815 composition
The ASME SA240/ASTM A240 UNS S30815 mechanical properties offer a balance of high strength at elevated temperatures, good ductility, and excellent corrosion resistance, suitable for high-temperature applications.
These properties ensure that ASME SA240/ASTM A240 UNS S30815 stainless steel sheet can withstand significant mechanical stresses in extreme environments. Solution annealing at 1040-1150°C (1904-2102°F) optimizes UNS S30815 mechanical properties for high-temperature performance.
|
Property |
Value at 20°C |
|---|---|
|
Tensile Strength (MPa) |
≥ 650 (94 ksi) |
|
Yield Strength (MPa) |
≥ 310 (45 ksi) |
|
Elongation (%) |
≥ 40 |
|
Hardness (HBW) |
≤ 217 |
|
Density |
7.80 g/cm³ (0.282 lb/in³) |
At Gangsteel, we’ve seen clients use sa 240/a 240 uns s30815 sheets in petrochemical furnaces, where its high-temperature strength and oxidation resistance provide significant advantages over sa 240/a 240 uns s30909.
Keywords: ASME SA240/ASTM A240 UNS S30815 mechanical properties, UNS S30815 strength, 253MA mechanical properties, ASME SA240 Gr S30815 mechanical properties
As a trusted uns stainless supplier, Gangsteel supplies sa 240/a 240 uns s30815 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.
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 S30815 material specifications.
Keywords: ASME SA240/ASTM A240 UNS S30815 stainless steel sheet specifications, UNS S30815 sheet specifications, ASME SA 240 Gr S30815 coil, ASME SA 240 Gr S30815 bar
ASME SA240/ASTM A240 UNS S30815 stainless steel sheetis tailored for industries requiring exceptional high-temperature strength and oxidation resistance. Its austenitic structure with cerium and nitrogen enhancements ensures durability in extreme environments.
Key ASME SA240/ASTM A240 UNS S30815 applications include:
Case Study: A power generation facility in India used sa 240/a 240 uns s30815 sheets for boiler components, achieving a 30% increase in component lifespan compared to sa 240/a 240 uns s31040 due to its superior oxidation resistance.
Keywords: ASME SA240/ASTM A240 UNS S30815 applications, UNS S30815 uses, 253MA applications, ASME SA240 Gr S30815 applications
To aid in material selection, here’s a comparison of sa 240/a 240 uns s30815 with sa 240/a 240 uns s30615, sa 240/a 240 uns s30909, sa 240/a 240 uns s30940, sa 240/a 240 uns s31040, sa 240/a 240 uns s31041, sa 240/a 240 uns s31050, and sa 240/a 240 uns s31060:
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 S30815 |
ASME SA240 UNS S30615 |
ASME SA240 UNS S30909 |
ASME SA240 UNS S30940 |
ASME SA240 UNS S31040 |
ASME SA240 UNS S31041 |
ASME SA240 UNS S31050 |
ASME SA240 UNS S31060 |
|---|---|---|---|---|---|---|---|---|
|
UNS Number |
S30815 |
S30615 |
S30909 |
S30940 |
S31040 |
S31041 |
S31050 |
S31060 |
|
Type |
Austenitic |
Austenitic |
Austenitic |
Austenitic |
Austenitic |
Austenitic |
Austenitic |
Austenitic |
|
Chromium Content |
20.0-22.0% |
18.0-19.5% |
22.0-24.0% |
22.0-24.0% |
24.0-26.0% |
24.0-26.0% |
24.0-26.0% |
24.0-26.0% |
|
Nickel Content |
10.0-12.0% |
13.5-15.0% |
12.0-15.0% |
12.0-15.0% |
19.0-22.0% |
19.0-22.0% |
21.0-23.0% |
19.0-22.0% |
|
Manganese Content |
≤ 0.80 |
≤ 2.0 |
≤ 2.0 |
≤ 2.0 |
≤ 2.0 |
≤ 2.0 |
≤ 2.0 |
≤ 2.0 |
|
Molybdenum Content |
- |
0.80-1.20% |
- |
- |
- |
- |
2.0-3.0% |
- |
|
Nitrogen Content |
0.14-0.20% |
0.15-0.25% |
- |
- |
- |
- |
0.10-0.16% |
- |
|
Carbon Content |
0.05-0.10% |
≤ 0.05% |
0.04-0.10% |
≤ 0.08% |
≤ 0.08% |
0.04-0.10% |
≤ 0.030% |
≤ 0.08% |
|
Corrosion Resistance |
Excellent in high-temperature environments |
Excellent in high-temperature environments |
Good in high-temperature environments |
Good in high-temperature environments |
Good in high-temperature environments |
Good in high-temperature environments |
Excellent in chemical environments |
Good in high-temperature environments |
|
Strength |
High (High-temperature) |
High (High-temperature) |
High (High-temperature) |
Moderate |
Moderate |
High (High-temperature) |
High (Chemical resistance) |
Moderate |
|
Temp Range |
Up to 1150°C (2102°F) |
Up to 950°C (1742°F) |
Up to 1000°C (1832°F) |
Up to 1000°C (1832°F) |
Up to 1100°C (2012°F) |
Up to 1100°C (2012°F) |
Up to 1100°C (2012°F) |
Up to 1100°C (2012°F) |
|
Cost (USD/kg) |
6-9 |
6-9 |
5-8 |
5-8 |
6-9 |
6-9 |
7-10 |
6-9 |
|
Applications |
Furnace components, petrochemical |
High-temperature equipment, chemical processing |
High-temperature equipment |
High-temperature welded structures |
High-temperature welded structures |
High-temperature equipment |
Chemical processing, high-temperature |
High-temperature equipment |
Conclusion: Choose sa 240/a 240 uns s30815 for high-temperature, oxidation-resistant applications, sa 240/a 240 uns s30615 for corrosion resistance in moderately corrosive environments, sa 240/a 240 uns s30909 for cost-effective high-temperature performance, sa 240/a 240 uns s30940 or sa 240/a 240 uns s31040 for weldable high-temperature structures, sa 240/a 240 uns s31041 for extreme high-temperature strength, or sa 240/a 240 uns s31050 or sa 240/a 240 uns s31060 for specific high-temperature or chemical applications.
Keywords: ASME SA240/ASTM A240 UNS S30815 vs ASME SA240 UNS S30615, ASME SA240/ASTM A240 UNS S30815 vs ASME SA240 UNS S30909, ASME SA240/ASTM A240 UNS S30815 vs ASME SA240 UNS S30940, ASME SA240/ASTM A240 UNS S30815 vs ASME SA240 UNS S31040, ASME SA240/ASTM A240 UNS S30815 vs ASME SA240 UNS S31041, ASME SA240/ASTM A240 UNS S30815 vs ASME SA240 UNS S31050, ASME SA240/ASTM A240 UNS S30815 vs ASME SA240 UNS S31060, 253MA comparison
ASME SA240/ASTM A240 UNS S30815aligns 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 S30815 a versatile choice for high-temperature applications.
|
Standard |
Grade |
|---|---|
|
UNS |
S30815 |
|
W.Nr. |
1.4835 |
|
EN |
X9CrNiSiNCe21-11-2 |
|
ASTM |
A240 |
|
ASME |
SA240 |
Note: ASME SA240/ASTM A240 UNS S30815 equivalent grades comply with sa 240/a 240 uns stainless grades standards, offering interchangeability with sa 240/a 240 uns s30615 for similar high-temperature applications.
Keywords: ASME SA240/ASTM A240 UNS S30815 equivalent, UNS S30815 equivalent, ASME SA 240 Gr S30815 material standards, EN X9CrNiSiNCe21-11-2
The allowable stress values for ASME SA240/ASTM A240 UNS S30815, per ASME BPVC Section II, Part D, ensure reliable performance in high-temperature environments.
These values reflect the material’s ability to withstand significant mechanical stresses at elevated temperatures while maintaining corrosion resistance.
|
Temperature (°C) |
Allowable Stress (MPa) |
|---|---|
|
100 |
170 |
|
200 |
155 |
|
300 |
145 |
|
400 |
135 |
|
500 |
125 |
Note: These values ensure sa 240/a 240 uns s30815 performs reliably in furnace and petrochemical applications.
Keywords: ASME SA240/ASTM A240 UNS S30815 allowable stress, UNS S30815 strength, ASME SA240 Gr S30815 material stress
The ASME SA240/ASTM A240 UNS S30815 price per kg ranges from USD 6-9 per kg (FOB), influenced by several factors:
The exceptional high-temperature strength and oxidation resistance of ASME SA240/ASTM A240 UNS S30815 make it a valuable choice for furnace and petrochemical applications.
For a precise ASME SA240/ASTM A240 UNS S30815 price per kg or bulk discounts, contact Gangsteel at admin@gangsteel.com.
Keywords: ASME SA240/ASTM A240 UNS S30815 price per kg, UNS S30815 cost, 253MA price
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 s30815 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.
Note: These grades complement sa 240/a 240 uns s30815 in high-temperature and corrosion-resistant applications. Contact Gangsteel for a full catalog to find the perfect material for your project.
Keywords: ASME SA240/ASTM A240 UNS S30815 related grades, UNS S30815 stainless steel grades, 253MA grades
Q: What is the main difference between ASME SA240/ASTM A240 UNS S30815 and ASME SA240 UNS S30615?
A: ASME SA240/ASTM A240 UNS S30815 offers superior high-temperature strength and oxidation resistance due to cerium and higher chromium content, while sa 240/a 240 uns s30615 provides better corrosion resistance in moderately corrosive environments due to molybdenum.
Q: Is ASME SA240/ASTM A240 UNS S30815 suitable for furnace applications?
A: Yes, its exceptional high-temperature strength and oxidation resistance make it ideal for furnace components compared to sa 240/a 240 uns s30909.
Q: How does the price of ASME SA240/ASTM A240 UNS S30815 compare to ASME SA240 UNS S31050?
A: ASME SA240/ASTM A240 UNS S30815 is typically 20-30% less expensive than sa 240/a 240 uns s31050 due to the absence of molybdenum, offering cost-effective performance for high-temperature applications.
Keywords: ASME SA240/ASTM A240 UNS S30815 FAQ, UNS S30815 stainless steel questions, 253MA FAQ
For sa 240/a 240 uns s30815 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.
Keywords: ASME SA240/ASTM A240 UNS S30815 supplier, Gangsteel stainless steel exporter, UNS S30815 sheet supplier
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