ASTM A240/ASME SA240 UNS S31700 Stainless Steel 317 Sheet

 

For applications requiring superior corrosion resistance, particularly in highly acidic and chloride-rich environments, ASTM A240/ASME SA240 UNS S31700 Stainless Steel 317 Sheet is an exceptional choice. As a leading uns stainless supplier, Gangsteel offers premium sa 240/a 240 uns s31700 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 S31700 chemical composition, mechanical properties, equivalent materials, specifications, applications, and competitive ASTM A240/ASME SA240 UNS S31700 price per kg. Whether you're an engineer designing chemical processing equipment or a procurement specialist sourcing for pulp and paper industries, this article will clarify why 317 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 s31600, sa 240/a 240 uns s31703, and sa 240/a 240 uns s30400.

Why Choose ASTM A240/ASME SA240 UNS S31700 Stainless Steel 317 Sheet?

 

ASTM A240/ASME SA240 UNS S31700, commonly known as 317 stainless steel, is a molybdenum-alloyed austenitic stainless steel with 18.0-20.0% chromium, 11.0-15.0% nickel, and 3.0-4.0% molybdenum. The higher molybdenum content compared to sa 240/a 240 uns s31600 enhances its resistance to pitting and crevice corrosion in chloride-rich and acidic environments, making it ideal for chemical processing, pulp and paper, and marine applications. Known for its superior corrosion resistance and strength, 317 stainless steel is a versatile material for demanding environments.

The elevated molybdenum content gives ASTM A240/ASME SA240 UNS S31700 stainless steel 317 sheet a significant advantage over sa 240/a 240 uns s31600 in highly corrosive settings, such as sulfuric acid or chloride-rich environments. Its robust properties make it a preferred choice for critical applications.

Key benefits of ASTM A240/ASME SA240 UNS S31700 stainless steel 317 sheet include:

• Superior Corrosion Resistance: Higher molybdenum content (3.0-4.0%) enhances resistance to chlorides and acids, outperforming sa 240/a 240 uns s31600 in acidic environments.
• High Strength and Durability: Maintains structural integrity in moderate temperatures up to 870°C (1598°F).
• Good Weldability and Formability: Suitable for complex fabrications, though sa 240/a 240 uns s31703 is preferred for heavy welding due to lower carbon.
• Versatility: Ideal for chemical processing, pulp and paper, and marine applications requiring enhanced corrosion resistance.

Case Study: A pulp and paper mill in India used sa 240/a 240 uns s31700 sheets for acid processing tanks, achieving a 35% increase in service life due to its superior acid resistance compared to sa 240/a 240 uns s31600.

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ASTM A240/ASME SA240 UNS S31700 Chemical Composition

 

The ASTM A240/ASME SA240 UNS S31700 chemical composition is designed for enhanced corrosion resistance and strength, compliant with sa 240/a 240 uns stainless grades standards.

The high molybdenum content (3.0-4.0%) provides a pitting resistance equivalent number (PREN) of ~29-33, making ASTM A240/ASME SA240 UNS S31700 superior to sa 240/a 240 uns s31600 for acid and chloride resistance. The controlled carbon content ensures good weldability, though sa 240/a 240 uns s31703 is preferred for heavy welding.

Element	Percentage (%)
Chromium (Cr)	18.0 – 20.0
Nickel (Ni)	11.0 – 15.0
Molybdenum (Mo)	3.0 – 4.0
Carbon (C)	≤ 0.08
Manganese (Mn)	≤ 2.0
Silicon (Si)	≤ 0.75
Phosphorus (P)	≤ 0.045
Sulfur (S)	≤ 0.03
Iron (Fe)	Balance (~60%)

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ASTM A240/ASME SA240 UNS S31700 Mechanical Properties

The ASTM A240/ASME SA240 UNS S31700 mechanical properties offer a balance of strength, ductility, and corrosion resistance, suitable for demanding applications.

These properties ensure that ASTM A240/ASME SA240 UNS S31700 stainless steel 317 sheet can withstand mechanical stresses in corrosive environments. Solution annealing at 1010-1120°C (1850-2048°F) optimizes UNS S31700 mechanical properties for corrosion resistance and strength.

Property	Value at 20°C	Value at 540°C (1000°F)
Tensile Strength (MPa)	≥ 515 (75 ksi)	≥ 380 (55 ksi)
Yield Strength (MPa)	≥ 205 (30 ksi)	≥ 170 (25 ksi)
Elongation (%)	≥ 35	≥ 40
Hardness (HRB)	≤ 95	-
Density	8.0 g/cm³ (0.289 lb/in³)	-

At Gangsteel, we’ve seen clients use sa 240/a 240 uns s31700 sheets in chemical processing tanks, where its performance surpasses sa 240/a 240 uns s31600 in acidic environments.

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ASTM A240/ASME SA240 UNS S31700 Specifications and Forms

 

As a trusted uns stainless supplier, Gangsteel supplies sa 240/a 240 uns s31700 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 s31700 sheets for chemical processing tanks, UNS S31700 plates for pulp and paper 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 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 S31700 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 chemical and pulp 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 S31700 material specifications.

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Applications of ASTM A240/ASME SA240 UNS S31700 Stainless Steel 317 Sheet

 

ASTM A240/ASME SA240 UNS S31700 stainless steel 317 sheetis tailored for industries requiring superior corrosion resistance in acidic and chloride-rich environments. Its high molybdenum content ensures excellent performance in harsh conditions, making it a preferred choice for critical applications.

Key ASTM A240/ASME SA240 UNS S31700 applications include:

• Chemical Processing: sa 240/a 240 uns s31700 sheets for reactors and tanks handling acids.
• Pulp and Paper: UNS S31700 plates for digesters and bleaching equipment.
• Marine: ASTM A240/ASME SA240 UNS S31700 bars for fittings in seawater systems.
• Pharmaceutical: Equipment requiring high corrosion resistance and hygiene.
• Power Generation: Components in flue gas desulfurization systems.

Case Study: A chemical plant in the UAE used sa 240/a 240 uns s31700 sheets for sulfuric acid tanks, reducing corrosion-related maintenance by 40% compared to sa 240/a 240 uns s31600.

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ASTM A240/ASME SA240 UNS S31700 vs Related Grades

 

To aid in material selection, here’s a comparison of sa 240/a 240 uns s31700 with sa 240/a 240 uns s31703, sa 240/a 240 uns s31600, and sa 240/a 240 uns s30400:

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 S31700	ASME SA240 UNS S31703	ASME SA240 UNS S31600	ASME SA240 UNS S30400
UNS Number	S31700	S31703	S31600	S30400
Type	Austenitic	Austenitic	Austenitic	Austenitic
Chromium Content	18.0-20.0%	18.0-20.0%	16.0-18.0%	18.0-20.0%
Nickel Content	11.0-15.0%	11.0-15.0%	10.0-14.0%	8.0-10.5%
Molybdenum Content	3.0-4.0%	3.0-4.0%	2.0-3.0%	-
Carbon Content	≤ 0.08%	≤ 0.03%	≤ 0.08%	≤ 0.08%
Corrosion Resistance	Superior in acids	Superior, enhanced weldability	Excellent in chlorides	Good in mild environments
Strength	Moderate	Moderate	Moderate	Moderate
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)
Cost (USD/kg)	8-15	8-15	6-12	5-10
Applications	Chemical, pulp/paper	Welded chemical	Marine, chemical	Food processing, architectural

• ASTM A240/ASME SA240 UNS S31700 vs ASME SA240 UNS S31703: S31700 is standard for general corrosion resistance, while sa 240/a 240 uns s31703 offers enhanced weldability due to lower carbon for heavy welding.
• ASTM A240/ASME SA240 UNS S31700 vs ASME SA240 UNS S31600: S31700 provides superior acid resistance with higher molybdenum, while sa 240/a 240 uns s31600 is cost-effective for chloride resistance.
• ASTM A240/ASME SA240 UNS S31700 vs ASME SA240 UNS S30400: S31700 excels in acidic and chloride-rich environments due to molybdenum, while sa 240/a 240 uns s30400 is cost-effective for mild environments.

Conclusion: Choose sa 240/a 240 uns s31700 for superior acid resistance, sa 240/a 240 uns s31703 for welded applications, sa 240/a 240 uns s31600 for general chloride resistance, or sa 240/a 240 uns s30400 for cost-effective mild environments.

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ASTM A240/ASME SA240 UNS S31700 Equivalent Materials

 

ASTM A240/ASME SA240 UNS S31700aligns 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 S31700 a versatile choice for corrosion-resistant applications.

Standard	Grade
UNS	S31700
W.Nr.	1.4449
EN	X5CrNiMo17-13-3
JIS	SUS 317
GB	0Cr19Ni13Mo3
ASTM	A240 317
ASME	SA240 317

Note: ASTM A240/ASME SA240 UNS S31700 equivalent grades comply with sa 240/a 240 uns stainless grades, JIS, and GB standards, offering interchangeability with sa 240/a 240 uns s31703 for welded applications.

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ASTM A240/ASME SA240 UNS S31700 Allowable Stress

 

The allowable stress values for ASTM A240/ASME SA240 UNS S31700, per ASME BPVC Section II, Part D, ensure reliable performance in high-temperature and corrosive environments.

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

Temperature (°C)	Allowable Stress (MPa)
100	155
200	145
300	135
400	125
500	115
600	105

Note: These values ensure sa 240/a 240 uns s31700 performs reliably in chemical processing tanks and pulp equipment.

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ASTM A240/ASME SA240 UNS S31700 Price

 

The ASTM A240/ASME SA240 UNS S31700 price per kg ranges from USD 8-15 per kg (FOB), influenced by several factors:

The balance of corrosion resistance and cost makes ASTM A240/ASME SA240 UNS S31700 a preferred choice for demanding applications in harsh environments.

• Alloy Content: Higher molybdenum content (3.0-4.0%) increases costs compared to sa 240/a 240 uns s31600.
• Market Demand: High demand in chemical and pulp industries drives UNS S31700 price.
• Product Form: ASTM A240/ASME SA240 UNS S31700 plates may cost more than sheets due to processing complexity.
• Global Supply Chain: Freight and raw material availability impact ASTM A240/ASME SA240 UNS S31700 cost.

For a precise ASTM A240/ASME SA240 UNS S31700 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 s31700 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 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 s31254: High corrosion resistance for aggressive environments.
• 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 s31700 in chemical, pulp, and marine 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 S31700 and ASME SA240 UNS S31703?

A: ASTM A240/ASME SA240 UNS S31700 is standard for general corrosion resistance, while sa 240/a 240 uns s31703 has lower carbon for enhanced weldability in heavy sections.

Q: Is ASTM A240/ASME SA240 UNS S31700 suitable for chemical processing?

A: Yes, its high molybdenum content ensures superior resistance to acidic and chloride environments, making it ideal for chemical processing compared to sa 240/a 240 uns s31600.

Q: How does the price of ASTM A240/ASME SA240 UNS S31700 compare to ASME SA240 UNS S31600?

A: ASTM A240/ASME SA240 UNS S31700 is typically 20-30% more expensive than sa 240/a 240 uns s31600 due to higher molybdenum content, offering superior performance in acidic environments.

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Contact Us

 

For sa 240/a 240 uns s31700 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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