ASTM A240/ASME SA240 UNS S30403 Stainless Steel 304l sheet

 

ASTM A240/ASME SA240 UNS S30403 Stainless Steel 304L Sheet for sales

 

For projects requiring a combination of excellent corrosion resistance, superior weldability, and cost-effectiveness, ASTM A240/ASME SA240 UNS S30403 Stainless Steel 304L Sheet is an ideal choice.

As a leading uns stainless supplier, Gangsteel offers premium sa 240/a 240 uns s30403 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.

Gangsteel explores the ASTM A240/ASME SA240 UNS S30403 chemical composition, mechanical properties, equivalent materials, specifications, applications, and competitive ASTM A240/ASME SA240 UNS S30403 price per kg. Whether you're an engineer designing welded structures or a procurement specialist sourcing for food processing equipment, this article will clarify why 304L stainless steel is a trusted and versatile option. Explore our sa 240/a 240 uns stainless grades portfolio for related grades like sa 240/a 240 uns s30400, sa 240/a 240 uns s31603, and sa 240/a 240 uns s32100.

Why Choose ASTM A240/ASME SA240 UNS S30403 Stainless Steel 304L Sheet?

 

ASTM A240/ASME SA240 UNS S30403, commonly known as 304L stainless steel, is a low-carbon variant of 304 stainless steel, featuring 18.0-20.0% chromium and 8.0-12.0% nickel. The "L" stands for low carbon, which enhances weldability by minimizing carbide precipitation, making it ideal for applications requiring heavy welding without post-weld annealing. Known as the "18-8" stainless steel, it offers excellent corrosion resistance in mild environments, making it a go-to choice for food processing, chemical, and architectural applications.

The low carbon content ensures that ASTM A240/ASME SA240 UNS S30403 stainless steel 304L sheet maintains its corrosion resistance in welded structures, offering a significant advantage over sa 240/a 240 uns s30400 for such applications. Its versatility and affordability make it a staple in industries worldwide.

Key benefits of ASTM A240/ASME SA240 UNS S30403 stainless steel 304L sheet include:

• Enhanced Weldability: Low carbon content (≤ 0.03%) reduces the risk of intergranular corrosion during welding, outperforming sa 240/a 240 uns s30400 in welded structures.
• Excellent Corrosion Resistance: Resists corrosion in mild environments, ideal for food processing and general industrial uses compared to sa 240/a 240 uns s20100.
• Cost-Effective: Offers a balance of performance and affordability compared to molybdenum-alloyed grades like sa 240/a 240 uns s31603.
• Aesthetic Appeal: Polished finishes make it suitable for decorative applications, such as architectural cladding and kitchen appliances.

Case Study: A brewery in Europe used sa 240/a 240 uns s30403 sheets for fermentation tanks, achieving a 20% reduction in corrosion-related maintenance due to its superior weldability and hygiene compared to sa 240/a 240 uns s20200.

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ASTM A240/ASME SA240 UNS S30403 Chemical Composition

 

The ASTM A240/ASME SA240 UNS S30403 chemical composition is optimized for corrosion resistance, weldability, and formability, compliant with sa 240/a 240 uns stainless grades standards.

The low carbon content (≤ 0.03%) minimizes carbide precipitation during welding, ensuring excellent corrosion resistance in welded structures. The balanced chromium and nickel content provides robust resistance to mild corrosive environments, making it a versatile choice for various applications.

Element	Percentage (%)
Chromium (Cr)	18.0 – 20.0
Nickel (Ni)	8.0 – 12.0
Carbon (C)	≤ 0.03
Manganese (Mn)	≤ 2.0
Silicon (Si)	≤ 0.75
Phosphorus (P)	≤ 0.045
Sulfur (S)	≤ 0.03
Iron (Fe)	Balance (~70%)

This composition makes ASTM A240/ASME SA240 UNS S30403 a superior choice for welded applications compared to sa 240/a 240 uns s30400, which has a higher carbon content.

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ASTM A240/ASME SA240 UNS S30403 Mechanical Properties

 

The ASTM A240/ASME SA240 UNS S30403 mechanical properties provide a balance of strength, ductility, and corrosion resistance, making it suitable for a wide range of applications.

These properties ensure that ASTM A240/ASME SA240 UNS S30403 stainless steel 304L sheet can withstand moderate mechanical stresses while maintaining excellent corrosion resistance. Solution annealing at 1010-1120°C (1850-2048°F) optimizes UNS S30403 mechanical properties for formability and durability.

Property	Value at 20°C
Tensile Strength (MPa)	≥ 485 (70 ksi)
Yield Strength (MPa)	≥ 170 (25 ksi)
Elongation (%)	≥ 40
Hardness (HRB)	≤ 92
Density	8.0 g/cm³ (0.289 lb/in³)

At Gangsteel, we’ve seen clients use sa 240/a 240 uns s30403 sheets in welded chemical tanks, where its performance surpasses sa 240/a 240 uns s43000 due to its superior weldability and corrosion resistance.

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ASTM A240/ASME SA240 UNS S30403 Specifications and Forms

 

As a trusted uns stainless supplier, Gangsteel supplies sa 240/a 240 uns s30403 sheets, plates, coils, bars, and custom components, compliant with sa 240/a 240 uns stainless grades standards:

Our extensive inventory and advanced processing capabilities allow us to meet diverse project requirements, from standard sizes to custom-cut components. All products are rigorously tested to ensure compliance with ASTM A240 and ASME SA240 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: ASTM A240, ASME SA240
• Applications: sa 240/a 240 uns s30403 sheets for welded chemical tanks, UNS S30403 plates for food processing equipment

7.2 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

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: ASTM A240/ASME SA240 UNS S30403 bars for fittings and fasteners

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 food processing 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 ASTM A240/ASME SA240 UNS S30403 material specifications.

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Applications of ASTM A240/ASME SA240 UNS S30403 Stainless Steel 304L Sheet

 

ASTM A240/ASME SA240 UNS S30403 stainless steel 304L sheetis versatile, excelling in industries requiring corrosion resistance, weldability, and hygiene. Its low carbon content makes it particularly suitable for applications involving welding, ensuring long-term durability and performance.

Key ASTM A240/ASME SA240 UNS S30403 applications include:

• Food Processing: sa 240/a 240 uns s30403 sheets for tanks, conveyors, and kitchen equipment.
• Chemical Processing: UNS S30403 plates for welded reactors and storage vessels.
• Architectural: ASTM A240/ASME SA240 UNS S30403 bars for railings and decorative panels.
• Medical: Surgical instruments and hospital equipment.
• General Industry: Structural components in mild corrosive environments.

Case Study: A dairy processing plant in India used sa 240/a 240 uns s30403 sheets for welded storage tanks, reducing corrosion-related maintenance by 25% compared to sa 240/a 240 uns s20200 due to its superior weldability and hygiene.

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ASTM A240/ASME SA240 UNS S30403 vs Related Grades

 

To aid in material selection, here’s a comparison of sa 240/a 240 uns s30403 with sa 240/a 240 uns s30400, sa 240/a 240 uns s30409, and sa 240/a 240 uns s31603:

This comparison highlights the unique advantages of each grade, helping you choose the right material for your specific needs.

Property	ASTM A240/ASME SA240 UNS S30403	ASME SA240 UNS S30400	ASME SA240 UNS S30409	ASME SA240 UNS S31603
UNS Number	S30403	S30400	S30409	S31603
Type	Austenitic	Austenitic	Austenitic	Austenitic
Chromium Content	18.0-20.0%	18.0-20.0%	18.0-20.0%	16.0-18.0%
Nickel Content	8.0-12.0%	8.0-10.5%	8.0-10.5%	10.0-14.0%
Molybdenum Content	-	-	-	2.0-3.0%
Carbon Content	≤ 0.03%	≤ 0.08%	0.04-0.10%	≤ 0.03%
Corrosion Resistance	Good, enhanced weldability	Good in mild environments	Good in mild environments	Excellent in chlorides
Strength	Moderate	Moderate	High at high temps	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)	5-10	5-10	5-10	6-12
Applications	Welded structures, food processing	Food processing, architectural	High-temp chemical	Marine, chemical

• ASTM A240/ASME SA240 UNS S30403 vs ASME SA240 UNS S30400: S30403 offers enhanced weldability due to lower carbon, ideal for heavy welding, while sa 240/a 240 uns s30400 is standard for general corrosion resistance.
• ASTM A240/ASME SA240 UNS S30403 vs ASME SA240 UNS S30409: S30403 is optimized for welded applications, while sa 240/a 240 uns s30409 provides better creep resistance for high-temperature uses.
• ASTM A240/ASME SA240 UNS S30403 vs ASME SA240 UNS S31603: S30403 is cost-effective for mild environments, while sa 240/a 240 uns s31603 excels in chloride-rich settings due to molybdenum.

Conclusion: Choose sa 240/a 240 uns s30403 for welded structures and food processing, sa 240/a 240 uns s30400 for general applications, sa 240/a 240 uns s30409 for high-temperature uses, or sa 240/a 240 uns s31603 for chloride resistance.

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ASTM A240/ASME SA240 UNS S30403 Equivalent Materials

 

ASTM A240/ASME SA240 UNS S30403aligns 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 S30403 a versatile choice for global projects.

Standard	Grade
UNS	S30403
W.Nr.	1.4307
EN	X2CrNi18-9
JIS	SUS 304L
GB	00Cr19Ni10
ASTM	A240 304l
ASME	SA240 304l

Note: ASTM A240/ASME SA240 UNS S30403 equivalent grades comply with sa 240/a 240 uns stainless grades, JIS, and GB standards, offering interchangeability with sa 240/a 240 uns s30400 for general applications.

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ASTM A240/ASME SA240 UNS S30403 Allowable Stress

 

The allowable stress values for ASTM A240/ASME SA240 UNS S30403, per ASME BPVC Section II, Part D, ensure reliable performance in moderate-temperature applications.

These values reflect the material’s ability to withstand mechanical stresses while maintaining structural integrity and corrosion resistance in various environments.

Temperature (°C)	Allowable Stress (MPa)
100	150
200	140
300	130
400	120
500	110
600	100

Note: These values ensure sa 240/a 240 uns s30403 performs reliably in welded food processing tanks and chemical equipment under moderate temperatures.

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ASTM A240/ASME SA240 UNS S30403 Price

 

The ASTM A240/ASME SA240 UNS S30403 price per kg ranges from USD 5-10 per kg (FOB), influenced by several factors:

The affordability of ASTM A240/ASME SA240 UNS S30403 makes it a popular choice for projects where cost and performance must be balanced.

• Alloy Content: Lower alloy content compared to sa 240/a 240 uns s31603 keeps costs low.
• Market Demand: High demand in food processing and chemical industries drives UNS S30403 price.
• Product Form: ASTM A240/ASME SA240 UNS S30403 plates may cost more than sheets due to processing complexity.
• Global Supply Chain: Freight and raw material availability impact ASTM A240/ASME SA240 UNS S30403 cost.

For a precise ASTM A240/ASME SA240 UNS S30403 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 s30403 for various applications:

This diverse portfolio ensures that clients can find the perfect material for their specific project requirements, from high-temperature to corrosion-resistant applications.

• sa 240/a 240 uns s30400: General-purpose austenitic stainless steel.
• sa 240/a 240 uns s30409: High-carbon for high-temperature strength.
• 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 s31700: High corrosion resistance for chemical processing.
• 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 s30403 in food processing, chemical, and welded 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 S30403 and ASME SA240 UNS S30400?

A: ASTM A240/ASME SA240 UNS S30403 has lower carbon content for enhanced weldability, ideal for heavy welding, while sa 240/a 240 uns s30400 is standard for general corrosion resistance.

Q: Is ASTM A240/ASME SA240 UNS S30403 suitable for food processing?

A: Yes, its excellent corrosion resistance and hygienic properties make it ideal for food processing equipment, outperforming sa 240/a 240 uns s20100 in durability and hygiene.

Q: How does the price of ASTM A240/ASME SA240 UNS S30403 compare to ASME SA240 UNS S31603?

A: ASTM A240/ASME SA240 UNS S30403 is typically 20-30% less expensive than sa 240/a 240 uns s31603 due to the absence of molybdenum, offering cost-effective performance for mild environments.

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Contact Us

 

For sa 240/a 240 uns s30403 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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