What is ASME SA 240 Type 316LN Stainless Sheet?

 

ASME SA 240 Type 316LN stainless sheet is a high-performance material known for its excellent corrosion resistance, enhanced strength, and suitability for low-temperature applications. As a nitrogen-alloyed, low-carbon variant of 316 stainless steel, it offers superior mechanical properties while maintaining outstanding weldability and formability.

Supplied by Gangsteel, a premier exporter of stainless steel plates and coils from China, this austenitic stainless steel is widely used in industries requiring durability in corrosive environments.

Gangsteel provides ASME SA 240 Type 316LN stainless sheet, plate, coil, bar, and custom components, all compliant with ASME SA240 and ASTM A240 standards. With over 600 tons in stock and advanced processing capabilities, we ensure quick delivery and customization for global clients.

This article explores the ASME SA 240 Type 316LN chemical composition, mechanical properties, equivalent materials, specifications, applications, and competitive ASME SA 240 Type 316LN price per kg. Discover our ASME SA240 stainless steel plate portfolio for similar grades like ASME SA240 Gr 316L, ASME SA240 Gr 316N, and ASME SA240 Gr 317LMN.

 

Why Choose ASME SA 240 Type 316LN Stainless Sheet?

 

ASME SA 240 Type 316LN, or UNS S31653, is a low-carbon, nitrogen-enhanced version of 316 stainless steel, with 16.0-18.0% chromium, 10.0-14.0% nickel, 2.0-3.0% molybdenum, and 0.10-0.16% nitrogen. The nitrogen boosts strength and pitting resistance, while low carbon ensures excellent weldability, making ASME SA 240 Type 316LN stainless sheet ideal for applications in corrosive environments requiring high strength and low-temperature toughness.

Advantages include:

• High Strength: Nitrogen increases yield strength by 50% over standard 316, allowing for thinner sheets and cost savings.
• Excellent Corrosion Resistance: Molybdenum and nitrogen provide superior resistance to pitting in chlorides and acids.
• Low-Temperature Toughness: Maintains ductility in cryogenic conditions, outperforming ASME SA240 Gr 316L.
• Cost-Effective Performance: A budget-friendly alternative to super-austenitic alloys for moderate to severe corrosion.

Case Study: A marine engineering project in the UAE used ASME SA 240 Type 316LN stainless sheet for offshore platforms, reducing weight and improving longevity by 30%.

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ASME SA 240 Type 316LN Chemical Composition

 

The ASME SA 240 Type 316LN chemical composition is designed for strength, corrosion resistance, and weldability, compliant with ASME SA240 standards.

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)	≤ 0.03
Manganese (Mn)	≤ 2.0
Silicon (Si)	≤ 0.75
Phosphorus (P)	≤ 0.045
Sulfur (S)	≤ 0.03
Iron (Fe)	Balance (~65%)

Note: Nitrogen and molybdenum enhance pitting resistance (PREN ~ 26-30), while low carbon prevents sensitization. This makes ASME SA 240 Type 316LN superior to ASME SA240 Gr 316 for high-strength needs.

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ASME SA 240 Type 316LN Mechanical Properties

 

The ASME SA 240 Type 316LN mechanical properties offer high strength, good ductility, and excellent low-temperature performance.

Property	Value at 20°C	Value at -196°C (-320°F)
Tensile Strength (MPa)	≥ 515 (75 ksi)	≥ 1000 (145 ksi)
Yield Strength (MPa)	≥ 240 (35 ksi)	≥ 500 (73 ksi)
Elongation (%)	≥ 40	≥ 30
Hardness (HRB)	≤ 95	-
Density	8.00 g/cm³ (0.289 lb/in³)	-

Note: Solution annealing at 1050-1150°C (1922-2102°F) maximizes UNS S31653 mechanical properties for corrosion resistance and toughness. Contact Gangsteel at admin@gangsteel.com for a detailed ASME SA 240 Type 316LN technical data sheet.

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ASME SA 240 Type 316LN Specifications and Forms

 

Gangsteel supplies ASME SA 240 Type 316LN stainless sheet, plate, coil, bar, and custom components to meet your project’s needs, compliant with ASME SA240 and ASTM A240 standards:

7.1 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: ASME SA240, ASTM A240
• Applications: ASME SA 240 Type 316LN stainless sheet for cryogenic piping, UNS S31653 plate for chemical tanks

7.2 Coil

• Thickness: 0.1 mm to 6 mm
• Width: Up to 2000 mm
• Standards: ASME SA240, ASTM A240
• Applications: Continuous production for welded tubes and pipes

7.3 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: ASME SA 240 Type 316LN bar for high-strength fittings

7.3 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 cryogenic industries

Note: Need a specific size or finish? Gangsteel offers custom solutions, including precision cutting and heat treatments, to meet ASME SA240 requirements. Contact us at admin@gangsteel.com for bespoke ASME SA 240 Type 316LN material specifications.

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Applications of ASME SA 240 Type 316LN Stainless Sheet

 

ASME SA 240 Type 316LN stainless sheetis ideal for industries needing high strength and corrosion resistance at low temperatures. Key ASME SA 240 Type 316LN applications include:

• Cryogenic Storage: ASME SA 240 Type 316LN stainless sheet for LNG tanks and piping.
• Chemical Processing: UNS S31653 plate for reactors in chloride environments.
• Structural Components: ASME SA 240 Type 316LN bar for high-strength frames.
• Pharmaceutical: High-purity fittings and tubes.
• Marine: Components requiring chloride resistance.

Case Study: A desalination plant in Saudi Arabia used ASME SA 240 Type 316LN stainless sheet for piping, improving durability and reducing maintenance by 25%.

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ASME SA 240 Type 316LN vs Related Grades

 

To aid in material selection, here’s a comparison of ASME SA 240 Type 316LN with ASME SA240 Gr 316L, ASME SA240 Gr 317LMN, and ASME SA240 Gr 304LN:

Property	ASME SA 240 Type 316LN (S31653)	ASME SA240 Gr 316L (S31603)	ASME SA240 Gr 317LMN (S31726)	ASME SA240 Gr 304LN (S30453)
UNS Number	S31653	S31603	S31726	S30453
Type	Austenitic	Austenitic	Austenitic	Austenitic
Nickel Content	10.0-14.0%	10.0-14.0%	13.0-17.5%	8.0-12.0%
Chromium Content	16.0-18.0%	16.0-18.0%	17.0-20.0%	18.0-20.0%
Nitrogen Content	0.10-0.16%	-	0.10-0.20%	0.10-0.16%
Molybdenum Content	2.0-3.0%	2.0-3.0%	4.0-5.0%	-
Corrosion Resistance	Excellent in chlorides	Excellent in chlorides	Superior in acids	Good in mild environments
Strength	High	Moderate	High	High
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)	6-12	6-12	9-16	5-10
Applications	Marine, cryogenic	Welded marine, chemical	Chemical, pulp/paper	Structural, cryogenic

• ASME SA 240 Type 316LN vs ASME SA240 Gr 316L: ASME SA 240 Type 316LN offers higher strength from nitrogen, ideal for cryogenic uses, while ASME SA240 Gr 316L focuses on weldability with ultra-low carbon.
• ASME SA 240 Type 316LN vs ASME SA240 Gr 317LMN: ASME SA 240 Type 316LN is cost-effective for chloride resistance, while ASME SA240 Gr 317LMN provides superior acid resistance with higher molybdenum.
• ASME SA 240 Type 316LN vs ASME SA240 Gr 304LN: ASME SA 240 Type 316LN excels in chloride environments due to molybdenum, while ASME SA240 Gr 304LN is suitable for general cryogenic applications at a lower cost.

Conclusion: Choose ASME SA 240 Type 316LN for high-strength marine and cryogenic applications, ASME SA240 Gr 316L for welded chemical uses, ASME SA240 Gr 317LMN for superior acid resistance, or ASME SA240 Gr 304LN for cost-effective cryogenic performance.

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ASME SA 240 Type 316LN Equivalent Materials

 

ASME SA 240 Type 316LNaligns with international standards for global compatibility.

Standard	Grade
UNS	S31653
W.Nr.	1.4429
EN	X2CrNiMoN17-13-3
JIS	SUS 316LN
GB	00Cr17Ni13Mo2N
ASTM	A240
ASME	SA240

Note: ASME SA 240 Type 316LN equivalent grades comply with ASME SA240, JIS, and GB standards, offering interchangeability with ASME SA240 Gr 316LN for high-strength, corrosion-resistant applications.

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ASME SA 240 Type 316LN Allowable Stress

 

The allowable stress values for ASME SA 240 Type 316LN, per ASME BPVC Section II, Part D, ensure reliable performance in high-temperature applications.

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

Note: These values ensure ASME SA 240 Type 316LN performs reliably in cryogenic tanks and chemical processing equipment under elevated temperatures.

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ASME SA 240 Type 316LN Price

 

The ASME SA 240 Type 316LN price per kg ranges from USD 6-12 per kg (FOB), influenced by:

• Alloy Content: Molybdenum (2.0-3.0%) and nitrogen (0.10-0.16%) increase costs compared to ASME SA240 Gr 304LN.
• Market Demand: High demand in chemical and cryogenic industries drives UNS S31653 price.
• Product Form: ASME SA 240 Type 316LN plate may cost more than sheet due to processing complexity.
• Global Supply Chain: Freight and availability impact ASME SA 240 Type 316LN cost.

For a precise ASME SA 240 Type 316LN price per kg or bulk discounts, contact Gangsteel at admin@gangsteel.com.

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Related Stainless Steel Grades

 

Gangsteel offers a wide range of ASME SA240 stainless steel plate grades to complement ASME SA 240 Type 316LN for various applications:

• ASME SA240 Gr 316L: Low-carbon for enhanced weldability.
• ASME SA240 Gr 316N: High strength for structural applications.
• ASME SA240 Gr 317LMN: Higher molybdenum for superior acid resistance.
• ASME SA240 Gr 304LN: Nitrogen-enhanced for strength without molybdenum.
• ASME SA240 Gr 201LN: Cost-effective for structural and cryogenic applications.
• ASME SA240 Gr 317: High corrosion resistance for chemical processing.
• ASME SA240 Gr 317L: Low-carbon for acidic environments.
• ASME SA240 Gr 317LM: Cost-effective corrosion resistance for acidic environments.
• ASME SA240 Gr 334: High-temperature resistance for heating elements.
• ASME SA240 Gr 347: Stabilized for high-temperature corrosion resistance.
• ASME SA240 Gr 347H: Enhanced creep resistance for high-temperature applications.
• ASME SA240 Gr 348: Low-cobalt for nuclear applications.
• ASME SA240 Gr 348H: High-carbon for enhanced high-temperature strength.
• ASME SA240 Gr 904L: Superior sulfuric acid resistance for chemical applications.
• ASME SA240 Gr 405: Ferritic for heat-resistant applications.
• ASME SA240 Gr 409: Cost-effective for automotive exhaust systems.
• ASME SA240 Gr 410: Martensitic for high-strength applications.
• ASME SA240 Gr 410S: Low-carbon martensitic for improved weldability.
• ASME SA240 Gr 429: Ferritic for corrosion and heat resistance.
• ASME SA240 Gr 430: Ferritic for decorative and appliance applications.
• ASME SA240 Gr 434: Ferritic with molybdenum for enhanced corrosion resistance.
• ASME SA240 Gr 436: Ferritic for automotive and corrosion-resistant applications.
• ASME SA240 Gr 439: Ferritic for exhaust systems and appliances.
• ASME SA240 Gr 444: Ferritic with high corrosion resistance for water tanks.

Note: These grades complement ASME SA 240 Type 316LN in high-strength, chemical, and cryogenic applications. Contact Gangsteel for a full catalog to find the perfect material for your project.

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FAQ

 

Q: What is the primary benefit of ASME SA 240 Type 316LN over ASME SA240 Gr 316?

A: ASME SA 240 Type 316LN offers higher strength and better low-temperature toughness due to nitrogen, making it suitable for cryogenic applications, while ASME SA240 Gr 316 is standard for general corrosion resistance.

Q: Is ASME SA 240 Type 316LN suitable for welding?

A: Yes, its low carbon content ensures excellent weldability without sensitization, similar to ASME SA240 Gr 316L but with added strength.

Q: How does the price of ASME SA 240 Type 316LN compare to ASME SA240 Gr 317LMN?

A: ASME SA 240 Type 316LN is typically 20-30% less expensive than ASME SA240 Gr 317LMN due to lower molybdenum content, while offering comparable strength for chloride-resistant applications.

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Contact Us

For ASME SA 240 Type 316LN stainless steel plate quotes, technical data sheets, or custom solutions, contact Gangsteel at admin@gangsteel.com. Explore our ASME SA240 stainless steel plate portfolio for more options.

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