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For applications requiring excellent corrosion resistance, enhanced strength, and good weldability, ASME SA240/ASTM A240 UNS S31651 Stainless Steel Sheet (commonly known as 316N) is a robust choice. As a leading uns stainless supplier, Gangsteel specializes in providing high-quality sa 240/a 240 uns s31651 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 S31651 chemical composition, density, mechanical properties, corrosion resistance, weldability, stainless steel surface finishes, equivalent materials, specifications, applications, and competitive ASME SA240/ASTM A240 UNS S31651 price per kg.
Whether you're an engineer designing structural components or a procurement specialist sourcing for chemical processing applications, this article will clarify why 316N stainless steel (UNS S31651) 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 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, and sa 240/a 240 uns s31653.
ASME SA240/ASTM A240 UNS S31651, known as 316N, is an austenitic stainless steel with 16.0-18.0% chromium, 10.0-14.0% nickel, 2.0-3.0% molybdenum, and 0.10-0.16% nitrogen. It is designed for applications requiring excellent corrosion resistance, enhanced strength due to nitrogen addition, and good weldability, making it ideal for industries such as chemical processing, marine, and structural applications. The nitrogen content increases strength and improves pitting resistance compared to sa 240/a 240 uns s31635, while the molybdenum content enhances corrosion resistance in chloride environments.
The ASME SA240/ASTM A240 UNS S31651 stainless steel sheet offers higher strength compared to sa 240/a 240 uns s31640 and similar corrosion resistance to sa 240/a 240 uns s31653 but with higher carbon content for improved strength. While it is less corrosion-resistant than high-alloy grades like sa 240/a 240 uns s31254, its combination of strength, corrosion resistance, and weldability makes it a preferred choice for structural and chemical processing applications.
Key benefits of ASME SA240/ASTM A240 UNS S31651 stainless steel sheet include:
Case Study: A chemical processing plant in India used sa 240/a 240 uns s31651 sheets for structural supports in a chloride-rich environment, achieving a 30% increase in load-bearing capacity compared to sa 240/a 240 uns s31640 due to its enhanced strength.
Keywords: ASME SA240/ASTM A240 UNS S31651 stainless steel sheet, UNS S31651 sheet, 316N stainless steel, corrosion-resistant stainless steel sheet
The density of ASME SA240/ASTM A240 UNS S31651 stainless steel sheet is approximately 8.00 g/cm³ (0.289 lb/in³). This density is typical for molybdenum-containing austenitic stainless steels, reflecting the material's composition, which includes nitrogen for enhanced strength. The consistent density ensures predictable performance in applications requiring precise weight calculations, such as structural components and chemical processing equipment. Compared to grades like sa 240/a 240 uns s31635 (8.00 g/cm³) and sa 240/a 240 uns s31050 (7.89 g/cm³), the density is similar, making UNS S31651 a reliable choice for weight-sensitive applications.
Keywords: ASME SA240/ASTM A240 UNS S31651 density, UNS S31651 density, 316N density
ASME SA240/ASTM A240 UNS S31651offers excellent corrosion resistance in chloride-containing and moderately corrosive environments, such as chemical processing and marine settings. Its 16.0-18.0% chromium, 10.0-14.0% nickel, 2.0-3.0% molybdenum, and 0.10-0.16% nitrogen content provide a robust protective oxide layer and good pitting resistance, with a pitting resistance equivalent number (PREN) of ~24-26. This makes it suitable for applications like chemical reactors and structural supports, outperforming sa 240/a 240 uns s30400 and sa 240/a 240 uns s30940. 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.
Keywords: ASME SA240/ASTM A240 UNS S31651 corrosion resistance, UNS S31651 corrosion properties, 316N corrosion resistance
The nitrogen-enhanced composition of ASME SA240/ASTM A240 UNS S31651 provides good weldability, though it is less weldable than sa 240/a 240 uns s31653 due to its higher carbon content (≤ 0.08%). It can be welded using common techniques such as TIG, MIG, and shielded metal arc welding, with appropriate filler materials (e.g., 316L or 316N-specific fillers) to maintain corrosion resistance and strength. Compared to sa 240/a 240 uns s31640, UNS S31651 is less weldable due to the absence of niobium stabilization but offers higher strength due to nitrogen addition. For applications requiring superior weldability, sa 240/a 240 uns s31635 or sa 240/a 240 uns s31653 are viable alternatives.
Keywords: ASME SA240/ASTM A240 UNS S31651 weldability, UNS S31651 welding properties, 316N weldability
The surface finish of ASME SA240/ASTM A240 UNS S31651 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 s31651 to be tailored for aesthetic or functional requirements, such as the 2B finish for chemical processing equipment or the NO.4 finish for structural applications.
Keywords: ASME SA240/ASTM A240 UNS S31651 surface finish, UNS S31651 stainless steel surface, 316N surface finishes
The ASME SA240/ASTM A240 UNS S31651 chemical composition is optimized for corrosion resistance and enhanced strength, compliant with sa 240/a 240 uns stainless grades standards.
The high chromium (16.0-18.0%), nickel (10.0-14.0%), molybdenum (2.0-3.0%), and nitrogen (0.10-0.16%) content provide excellent corrosion resistance and strength compared to sa 240/a 240 uns s31635.
|
Element |
Percentage (%) |
|---|---|
|
Chromium (Cr) |
16.0 – 18.0 |
|
Nickel (Ni) |
10.0 – 14.0 |
|
Molybdenum (Mo) |
2.0 – 3.0 |
|
Nitrogen (N) |
0.10 – 0.16 |
|
Carbon (C) |
≤ 0.08 |
|
Manganese (Mn) |
≤ 2.0 |
|
Silicon (Si) |
≤ 0.75 |
|
Phosphorus (P) |
≤ 0.045 |
|
Sulfur (S) |
≤ 0.030 |
|
Iron (Fe) |
Balance (~65%) |
Keywords: ASME SA240/ASTM A240 UNS S31651 chemical composition, UNS S31651 composition, 316N chemistry, ASME SA240 Gr S31651 composition
The ASME SA240/ASTM A240 UNS S31651 mechanical properties offer a balance of enhanced strength, excellent corrosion resistance, and good weldability, suitable for chemical processing and structural applications.
These properties ensure that ASME SA240/ASTM A240 UNS S31651 stainless steel sheet can withstand higher mechanical stresses compared to standard 316 grades. Solution annealing at 1040-1100°C (1904-2012°F) optimizes UNS S31651 mechanical properties for corrosion resistance and strength.
|
Property |
Value at 20°C |
|---|---|
|
Tensile Strength (MPa) |
≥ 580 (84 ksi) |
|
Yield Strength (MPa) |
≥ 290 (42 ksi) |
|
Elongation (%) |
≥ 40 |
|
Hardness (HBW) |
≤ 217 |
|
Density |
8.00 g/cm³ (0.289 lb/in³) |
At Gangsteel, we’ve seen clients use sa 240/a 240 uns s31651 sheets in structural supports for chemical plants, where its enhanced strength and corrosion resistance provide advantages over sa 240/a 240 uns s31640.
Keywords: ASME SA240/ASTM A240 UNS S31651 mechanical properties, UNS S31651 strength, 316N mechanical properties, ASME SA240 Gr S31651 mechanical properties
As a trusted uns stainless supplier, Gangsteel supplies sa 240/a 240 uns s31651 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 S31651 material specifications.
Keywords: ASME SA240/ASTM A240 UNS S31651 stainless steel sheet specifications, UNS S31651 sheet specifications, ASME SA 240 Gr S31651 coil, ASME SA 240 Gr S31651 bar
ASME SA240/ASTM A240 UNS S31651 stainless steel sheetis tailored for industries requiring excellent corrosion resistance, enhanced strength, and good weldability. Its nitrogen-enhanced austenitic structure ensures durability in demanding applications.
Key ASME SA240/ASTM A240 UNS S31651 applications include:
Case Study: A marine engineering firm in India used sa 240/a 240 uns s31651 sheets for structural supports in a coastal facility, achieving a 25% increase in durability compared to sa 240/a 240 uns s31635 due to its enhanced strength.
Keywords: ASME SA240/ASTM A240 UNS S31651 applications, UNS S31651 uses, 316N applications, ASME SA240 Gr S31651 applications
To aid in material selection, here’s a comparison of sa 240/a 240 uns s31651 with 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 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, and sa 240/a 240 uns s31653:
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 S31651 |
ASME SA240 UNS S30615 |
ASME SA240 UNS S30815 |
ASME SA240 UNS S30909 |
ASME SA240 UNS S30940 |
ASME SA240 UNS S31040 |
ASME SA240 UNS S31041 |
ASME SA240 UNS S31050 |
|---|---|---|---|---|---|---|---|---|
|
UNS Number |
S31651 |
S30615 |
S30815 |
S30909 |
S30940 |
S31040 |
S31041 |
S31050 |
|
Type |
Austenitic |
Austenitic |
Austenitic |
Austenitic |
Austenitic |
Austenitic |
Austenitic |
Austenitic |
|
Chromium Content |
16.0-18.0% |
18.0-19.5% |
20.0-22.0% |
22.0-24.0% |
22.0-24.0% |
24.0-26.0% |
24.0-26.0% |
24.0-26.0% |
|
Nickel Content |
10.0-14.0% |
13.5-15.0% |
10.0-12.0% |
12.0-15.0% |
12.0-15.0% |
19.0-22.0% |
19.0-22.0% |
21.0-23.0% |
|
Manganese Content |
≤ 2.0 |
≤ 2.0 |
≤ 0.80 |
≤ 2.0 |
≤ 2.0 |
≤ 2.0 |
≤ 2.0 |
≤ 2.0 |
|
Molybdenum Content |
2.0-3.0% |
0.80-1.20% |
- |
- |
- |
- |
- |
2.0-3.0% |
|
Nitrogen Content |
0.10-0.16% |
0.15-0.25% |
0.14-0.20% |
- |
- |
- |
- |
0.10-0.16% |
|
Carbon Content |
≤ 0.08% |
≤ 0.05% |
0.05-0.10% |
0.04-0.10% |
≤ 0.08% |
≤ 0.08% |
0.04-0.10% |
≤ 0.030% |
|
Corrosion Resistance |
Good in chloride environments |
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 |
|
Strength |
High (Nitrogen-enhanced) |
High (High-temperature) |
High (High-temperature) |
High (High-temperature) |
Moderate |
Moderate |
High (High-temperature) |
High (Chemical resistance) |
|
Temp Range |
Up to 870°C (1598°F) |
Up to 950°C (1742°F) |
Up to 1150°C (2102°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) |
|
Cost (USD/kg) |
5-8 |
6-9 |
6-9 |
5-8 |
5-8 |
6-9 |
6-9 |
7-10 |
|
Applications |
Chemical, structural |
High-temperature equipment, chemical processing |
Furnace components, petrochemical |
Heat exchangers, furnace components |
High-temperature welded structures |
High-temperature welded structures |
High-temperature equipment |
Chemical processing, high-temperature |
Conclusion: Choose sa 240/a 240 uns s31651 for high-strength, corrosion-resistant applications in chloride environments, sa 240/a 240 uns s30615 or sa 240/a 240 uns s30815 for high-temperature oxidation resistance, sa 240/a 240 uns s30909 or sa 240/a 240 uns s31041 for high-temperature strength, sa 240/a 240 uns s30940 or sa 240/a 240 uns s31040 for weldable high-temperature structures, sa 240/a 240 uns s31050 for chemical processing, sa 240/a 240 uns s31060 for general high-temperature applications, sa 240/a 240 uns s31254 or sa 240/a 240 uns s31266 for severe corrosive environments, or sa 240/a 240 uns s31635, sa 240/a 240 uns s31640, or sa 240/a 240 uns s31653 for similar corrosion-resistant applications.
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ASME SA240/ASTM A240 UNS S31651aligns 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 S31651 a versatile choice for corrosion-resistant and high-strength applications.
|
Standard |
Grade |
|---|---|
|
UNS |
S31651 |
|
W.Nr. |
1.4404 |
|
EN |
X2CrNiMoN17-12-2 |
|
ASTM |
A240 |
|
ASME |
SA240 |
Note: ASME SA240/ASTM A240 UNS S31651 equivalent grades comply with sa 240/a 240 uns stainless grades standards, offering interchangeability with sa 240/a 240 uns s31653 for similar applications.
Keywords: ASME SA240/ASTM A240 UNS S31651 equivalent, UNS S31651 equivalent, ASME SA 240 Gr S31651 material standards, EN X2CrNiMoN17-12-2
The allowable stress values for ASME SA240/ASTM A240 UNS S31651, 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 higher mechanical stresses due to nitrogen enhancement while maintaining corrosion resistance.
|
Temperature (°C) |
Allowable Stress (MPa) |
|---|---|
|
100 |
145 |
|
200 |
135 |
|
300 |
125 |
|
400 |
115 |
|
500 |
105 |
Note: These values ensure sa 240/a 240 uns s31651 performs reliably in chemical and structural applications.
Keywords: ASME SA240/ASTM A240 UNS S31651 allowable stress, UNS S31651 strength, ASME SA240 Gr S31651 material stress
The ASME SA240/ASTM A240 UNS S31651 price per kg ranges from USD 5-8 per kg (FOB), influenced by several factors:
The excellent corrosion resistance and enhanced strength of ASME SA240/ASTM A240 UNS S31651 make it a valuable choice for chemical and structural applications.
For a precise ASME SA240/ASTM A240 UNS S31651 price per kg or bulk discounts, contact Gangsteel at admin@gangsteel.com.
Keywords: ASME SA240/ASTM A240 UNS S31651 price per kg, UNS S31651 cost, 316N 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 s31651 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 s31651 in corrosion-resistant and high-strength applications. Contact Gangsteel for a full catalog to find the perfect material for your project.
Keywords: ASME SA240/ASTM A240 UNS S31651 related grades, UNS S31651 stainless steel grades, 316N grades
Q: What is the main difference between ASME SA240/ASTM A240 UNS S31651 and ASME SA240 UNS S31653?
A: ASME SA240/ASTM A240 UNS S31651 offers higher strength due to higher carbon content (≤ 0.08%), while sa 240/a 240 uns s31653 provides better weldability due to lower carbon content (≤ 0.030%).
Q: Is ASME SA240/ASTM A240 UNS S31651 suitable for structural applications?
A: Yes, its enhanced strength and excellent corrosion resistance make it ideal for structural supports in chloride-rich environments compared to sa 240/a 240 uns s31640.
Q: How does the price of ASME SA240/ASTM A240 UNS S31651 compare to ASME SA240 UNS S31254?
A: ASME SA240/ASTM A240 UNS S31651 is typically 30-40% less expensive than sa 240/a 240 uns s31254 due to lower molybdenum content, offering cost-effective performance for chloride-containing environments.
Keywords: ASME SA240/ASTM A240 UNS S31651 FAQ, UNS S31651 stainless steel questions, 316N FAQ
For sa 240/a 240 uns s31651 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 S31651 supplier, Gangsteel stainless steel exporter, UNS S31651 sheet supplier
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