ASTM A240/ASME SA240 UNS S43932 Stainless Steel F18S Sheet supplier

 

For applications requiring excellent corrosion resistance, formability, and cost-effective performance, ASTM A240/ASME SA240 UNS S43932 Stainless Steel F18S Sheet is an ideal choice. As a leading uns stainless supplier, Gangsteel offers high-quality sa 240/a 240 uns s43932 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 S43932 chemical composition, mechanical properties, equivalent materials, specifications, applications, and competitive ASTM A240/ASME SA240 UNS S43932 price per kg. Whether you're an engineer designing automotive exhaust systems or a procurement specialist sourcing for architectural components, this article will clarify why F18S (Type 439) 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 s43035, sa 240/a 240 uns s44400, and sa 240/a 240 uns s30400.


Why Choose ASTM A240/ASME SA240 UNS S43932 Stainless Steel F18S Sheet?

 

ASTM A240/ASME SA240 UNS S43932, commonly known as F18S or Type 439 stainless steel, is a ferritic stainless steel with 17.0-19.0% chromium, stabilized with titanium and niobium for enhanced corrosion resistance and weldability. Designed for applications requiring resistance to stress corrosion cracking and oxidation, it performs well in environments like automotive exhaust systems and architectural components. The low carbon content and stabilization with titanium and niobium minimize intergranular corrosion, making it suitable for welded structures without post-weld annealing.

The ferritic structure and stabilization of ASTM A240/ASME SA240 UNS S43932 stainless steel F18S sheet provide advantages over sa 240/a 240 uns s43035 in terms of improved weldability and corrosion resistance, while being more cost-effective than austenitic grades like sa 240/a 240 uns s30400. Its properties make it a preferred choice for applications requiring durability and formability.

Key benefits of ASTM A240/ASME SA240 UNS S43932 stainless steel F18S sheet include:

  • Excellent Corrosion Resistance: High chromium content and stabilization provide resistance to stress corrosion cracking and pitting, outperforming sa 240/a 240 uns s43000 in mildly corrosive environments.
  • Enhanced Weldability: Titanium and niobium stabilization (0.20 + 4(C+N) to 0.75%) minimizes intergranular corrosion, making it ideal for welded applications compared to unstabilized ferritic grades.
  • Cost-Effective: Lower alloy content compared to austenitic grades like sa 240/a 240 uns s30400 reduces costs while maintaining performance.
  • Good Formability: Ferritic structure allows for excellent forming, suitable for automotive and architectural applications.

Case Study: An automotive manufacturer in India used sa 240/a 240 uns s43932 sheets for exhaust system components, achieving a 30% longer service life due to its corrosion resistance and weldability compared to sa 240/a 240 uns s43000.

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ASTM A240/ASME SA240 UNS S43932 Chemical Composition

 

The ASTM A240/ASME SA240 UNS S43932 chemical composition is designed for corrosion resistance, weldability, and formability, compliant with sa 240/a 240 uns stainless grades standards.

The high chromium content (17.0-19.0%) provides corrosion resistance, while titanium and niobium stabilization (0.20 + 4(C+N) to 0.75%) prevents intergranular corrosion. The low carbon content (≤ 0.03%) and low nickel (≤ 0.5%) ensure a ferritic structure, making ASTM A240/ASME SA240 UNS S43932 more cost-effective than sa 240/a 240 uns s30400 while offering comparable corrosion resistance in specific environments.

Element

Percentage (%)

Chromium (Cr)

17.0 – 19.0

Nickel (Ni)

≤ 0.5

Titanium (Ti) + Niobium (Nb)

0.20 + 4(C+N) – 0.75

Carbon (C)

≤ 0.03

Manganese (Mn)

≤ 1.0

Silicon (Si)

≤ 1.0

Phosphorus (P)

≤ 0.040

Sulfur (S)

≤ 0.030

Nitrogen (N)

≤ 0.03

Aluminum (Al)

≤ 0.15

Iron (Fe)

Balance (~80%)

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ASTM A240/ASME SA240 UNS S43932 Mechanical Properties

 

The ASTM A240/ASME SA240 UNS S43932 mechanical properties offer a balance of strength, ductility, and corrosion resistance, suitable for demanding applications.

These properties ensure that ASTM A240/ASME SA240 UNS S43932 stainless steel F18S sheet can withstand mechanical stresses in mildly corrosive environments. Annealing at 760-816°C (1400-1500°F) optimizes UNS S43932 mechanical properties for formability and corrosion resistance.

Property

Value at 20°C

Tensile Strength (MPa)

≥ 415 (60 ksi)

Yield Strength (MPa)

≥ 205 (30 ksi)

Elongation (%)

≥ 22

Hardness (HBW)

≤ 183

Density

7.7 g/cm³ (0.278 lb/in³)

At Gangsteel, we’ve seen clients use sa 240/a 240 uns s43932 sheets in automotive exhaust systems, where its performance surpasses sa 240/a 240 uns s43000 due to enhanced weldability and corrosion resistance.

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ASTM A240/ASME SA240 UNS S43932 Specifications and Forms

 

As a trusted uns stainless supplier, Gangsteel supplies sa 240/a 240 uns s43932 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 50 mm (plate)
  • Width: Up to 2000 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 s43932 sheets for automotive exhaust systems, UNS S43932 plates for architectural panels

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 300 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 S43932 bars for structural components

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 automotive and architectural 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 S43932 material specifications.

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Applications of ASTM A240/ASME SA240 UNS S43932 Stainless Steel F18S Sheet

 

ASTM A240/ASME SA240 UNS S43932 stainless steel F18S sheetis tailored for industries requiring corrosion resistance, formability, and cost-effectiveness. Its ferritic structure and stabilization ensure durability in mildly corrosive environments.

Key ASTM A240/ASME SA240 UNS S43932 applications include:

  • Automotive: sa 240/a 240 uns s43932 sheets for exhaust systems, mufflers, and catalytic converters.
  • Architectural: UNS S43932 plates for cladding, roofing, and decorative panels.
  • Appliances: ASTM A240/ASME SA240 UNS S43932 bars for components in dishwashers and washing machines.
  • Industrial: Piping and tubing for mildly corrosive environments.
  • HVAC: Ductwork and heat exchanger components.

Case Study: An automotive supplier in India used sa 240/a 240 uns s43932 sheets for exhaust manifolds, reducing material costs by 20% compared to sa 240/a 240 uns s30400 while maintaining corrosion resistance and weldability.

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ASTM A240/ASME SA240 UNS S43932 vs Related Grades

 

To aid in material selection, here’s a comparison of sa 240/a 240 uns s43932 with sa 240/a 240 uns s43035, sa 240/a 240 uns s44400, 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 S43932

ASME SA240 UNS S43035

ASME SA240 UNS S44400

ASME SA240 UNS S30400

UNS Number

S43932

S43035

S44400

S30400

Type

Ferritic

Ferritic

Ferritic

Austenitic

Chromium Content

17.0-19.0%

17.0-19.0%

17.5-19.5%

18.0-20.0%

Nickel Content

≤ 0.5%

≤ 0.5%

≤ 1.0%

8.0-10.5%

Stabilizer

Ti+Nb: 0.20 + 4(C+N) – 0.75%

Titanium

Mo: 1.75-2.5%, Ti+Nb

-

Carbon Content

≤ 0.03%

≤ 0.07%

≤ 0.025%

≤ 0.08%

Corrosion Resistance

Good, stabilized

Good, stabilized

Excellent in chlorides

Good in mild environments

Strength

Moderate

Moderate

Moderate

Moderate

Temp Range

Up to 800°C (1472°F)

Up to 800°C (1472°F)

Up to 800°C (1472°F)

Up to 870°C (1598°F)

Cost (USD/kg)

3-6

3-6

4-8

5-10

Applications

Automotive, architectural

Automotive, appliances

Water tanks, piping

Food processing, architectural

  • ASTM A240/ASME SA240 UNS S43932 vs ASME SA240 UNS S43035: S43932 offers improved weldability and corrosion resistance due to dual Ti+Nb stabilization, while sa 240/a 240 uns s43035 is similar but less optimized for welding.
  • ASTM A240/ASME SA240 UNS S43932 vs ASME SA240 UNS S44400: S43932 is cost-effective for automotive applications, while sa 240/a 240 uns s44400 provides superior chloride resistance for water tanks and piping.
  • ASTM A240/ASME SA240 UNS S43932 vs ASME SA240 UNS S30400: S43932 is more cost-effective and suitable for automotive exhausts, while sa 240/a 240 uns s30400 offers better corrosion resistance in diverse environments but at a higher cost.

Conclusion: Choose sa 240/a 240 uns s43932 for cost-effective automotive and architectural applications, sa 240/a 240 uns s43035 for similar but less optimized uses, sa 240/a 240 uns s44400 for chloride-resistant applications, or sa 240/a 240 uns s30400 for versatile corrosion resistance.

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ASTM A240/ASME SA240 UNS S43932 Equivalent Materials

 

ASTM A240/ASME SA240 UNS S43932aligns 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 S43932 a versatile choice for cost-effective applications.

Standard

Grade

UNS

S43932

W.Nr.

1.4509

EN

X2CrTiNb18

JIS

SUS 430LX

GB

022Cr18NbTi

ASTM

A240

ASME

SA240

Note: ASTM A240/ASME SA240 UNS S43932 equivalent grades comply with sa 240/a 240 uns stainless grades, JIS, and GB standards, offering interchangeability with sa 240/a 240 uns s43035 for similar applications.

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ASTM A240/ASME SA240 UNS S43932 Allowable Stress

 

The allowable stress values for ASTM A240/ASME SA240 UNS S43932, per ASME BPVC Section II, Part D, ensure reliable performance in mildly corrosive environments.

These values reflect the material’s ability to withstand mechanical stresses while maintaining corrosion resistance in applications like automotive exhaust systems.

Temperature (°C)

Allowable Stress (MPa)

100

140

200

130

300

120

400

110

500

100

Note: These values ensure sa 240/a 240 uns s43932 performs reliably in automotive exhaust components and architectural panels.

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ASTM A240/ASME SA240 UNS S43932 Price

 

The ASTM A240/ASME SA240 UNS S43932 price per kg ranges from USD 3-6 per kg (FOB), influenced by several factors:

The cost-effectiveness and performance of ASTM A240/ASME SA240 UNS S43932 make it a preferred choice for automotive and architectural applications.

  • Alloy Content: Lower nickel content compared to sa 240/a 240 uns s30400 reduces costs.
  • Market Demand: High demand in automotive industries drives UNS S43932 price.
  • Product Form: ASTM A240/ASME SA240 UNS S43932 plates may cost more than sheets due to processing complexity.
  • Global Supply Chain: Freight and raw material availability impact ASTM A240/ASME SA240 UNS S43932 cost.

For a precise ASTM A240/ASME SA240 UNS S43932 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 s43932 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 s43932 in automotive, architectural, and appliance 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 S43932 and ASME SA240 UNS S43035?

A: ASTM A240/ASME SA240 UNS S43932 offers improved weldability and corrosion resistance due to dual titanium and niobium stabilization, while sa 240/a 240 uns s43035 is stabilized with titanium alone, making it slightly less optimized for welding.

Q: Is ASTM A240/ASME SA240 UNS S43932 suitable for automotive exhaust systems?

A: Yes, its stabilized composition and corrosion resistance make it ideal for exhaust systems, mufflers, and catalytic converters, outperforming sa 240/a 240 uns s43000 in corrosive environments.

Q: How does the price of ASTM A240/ASME SA240 UNS S43932 compare to ASME SA240 UNS S30400?

A: ASTM A240/ASME SA240 UNS S43932 is typically 30-40% less expensive than sa 240/a 240 uns s30400 due to its lower nickel content, offering cost-effective performance for automotive applications.

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Contact Us

 

For sa 240/a 240 uns s43932 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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ASTM A240/ASME SA240 UNS S43932 stainless steel F18S sheet, UNS S43932 applications, ASME SA240 Gr F18S mechanical properties

 

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