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Gangsteel presents sa240/a240 uns s44660, a super-ferritic stainless steel sheet engineered for unparalleled corrosion resistance and high-temperature performance in extreme environments. Compliant with sa240/a240 uns stainless grades standards, including ASTM A240 and ASME SA240, UNS S44660 is ideal for applications such as seawater desalination, chemical processing, and power generation. As a leading uns stainless supplier, Gangsteel maintains an inventory exceeding 600 tons and leverages advanced manufacturing to deliver precise, customized solutions globally with rapid delivery.
Gangsteel provides a detailed exploration of ASME SA240/ASTM A240 UNS S44660, covering its chemical composition, density, mechanical properties, corrosion resistance, weldability, surface finishes, equivalent materials, specifications, applications, and pricing per kg. Perfect for engineers and procurement specialists, UNS S44660 offers a robust solution for severe corrosive environments. Explore related grades like sa240/a240 uns s41003 to meet diverse project needs.
ASME SA240/ASTM A240 UNS S44660, a super-ferritic stainless steel, features 25.0-28.0% chromium, 3.0-4.0% molybdenum, 1.0-3.5% nickel, and titanium/niobium stabilization, delivering exceptional corrosion resistance, good weldability, and enhanced strength. Designed for extreme corrosive environments like seawater desalination and chemical processing, it benefits from stabilization and low carbon content (≤ 0.025%) to prevent carbide precipitation during welding, outperforming non-stabilized grades like sa240/a240 uns s43000. Its ferritic structure ensures excellent scaling resistance up to 1050°C (1922°F).
Gangsteel highlights that UNS S44660 offers superior corrosion resistance compared to sa240/a240 uns s41008 due to its high chromium, molybdenum, and nickel content, and it is competitive with super-ferritic grades like sa240/a240 uns s44700. Its enhanced strength makes it ideal for demanding applications.
Key benefits include:
Case Study: A Middle Eastern desalination plant used UNS S44660 sheets for heat exchanger tubing, achieving a 15% cost reduction compared to sa240/a240 uns s44700 while maintaining superior corrosion resistance.
Keywords: ASME SA240/ASTM A240 UNS S44660 stainless steel sheet, UNS S44660 sheet, corrosion-resistant stainless steel sheet
Gangsteel confirms that the density of ASME SA240/ASTM A240 UNS S44660 is approximately 7.80 g/cm³ (0.282 lb/in³), slightly higher than standard ferritic grades due to its nickel content, compared to sa240/a240 uns s41003 (7.70 g/cm³) and sa240/a240 uns s42035 (7.75 g/cm³). This density supports precise weight calculations for desalination equipment.
Keywords: ASME SA240/ASTM A240 UNS S44660 density, UNS S44660 density
Gangsteel emphasizes that ASME SA240/ASTM A240 UNS S44660 offers exceptional corrosion resistance in severe environments due to its 25.0-28.0% chromium, 3.0-4.0% molybdenum, and 1.0-3.5% nickel content, with a pitting resistance equivalent number (PREN) of ~35.0-39.0. Ideal for seawater desalination and chemical processing, it outperforms sa240/a240 uns s41008 and sa240/a240 uns s44400 in chloride-rich environments. Its high-temperature oxidation resistance is superior to sa240/a240 uns s43000.
Keywords: ASME SA240/ASTM A240 UNS S44660 corrosion resistance, UNS S44660 corrosion properties
Gangsteel notes that the low carbon content (≤ 0.025%) and titanium/niobium stabilization in ASME SA240/ASTM A240 UNS S44660 ensure good weldability, minimizing carbide precipitation. It outperforms martensitic grades like sa240/a240 uns s41500 and is comparable to sa240/a240 uns s43035. Suitable for TIG, MIG, and shielded metal arc welding, it uses stabilized or low-carbon ferritic fillers.
Keywords: ASME SA240/ASTM A240 UNS S44660 weldability, UNS S44660 welding properties
Gangsteel offers a range of surface finishes for ASME SA240/ASTM A240 UNS S44660 to enhance its versatility:
|
Surface Finish |
Definition/Feature |
Summary of Manufacturing Method |
Application/Use |
|---|---|---|---|
|
NO.1 |
Silver white, matte |
Hot rolled, heat treated, and pickled |
Industrial tanks, pipes |
|
2B |
Stronger gloss than NO.2D |
Cold rolled, heat treated, pickled, lightly polished |
Desalination equipment, chemical processing |
|
NO.2D/2BB |
Silver white |
Cold rolled, heat treated, pickled |
Deep-drawn components |
|
NO.3 |
Rough grinding |
Polished with 100-120# abrasives (JIS R6001) |
Industrial components |
|
NO.4 (4K) |
Intermediate grinding |
Polished with 150-180# abrasives (JIS R6001) |
Architectural panels |
|
NO.240 |
Fine grinding |
Ground with 240# abrasive belt |
Precision components |
|
NO.320 |
Very fine grinding |
Ground with 320# abrasive belt |
High-end industrial components |
|
NO.400 |
Gloss close to BA |
Polished with 400# wheel |
Industrial fittings |
|
HL |
Hairline, continuous streaks |
Polished with 150-240# abrasive |
Structural components |
|
BA (No.6/BA1/BA0) |
Mirror-like, bright |
Cold rolled with bright heat treatment |
Decorative surfaces |
|
NO.7 |
Near-mirror polishing |
Polished with 600# rotary wheel |
Specialized industrial applications |
|
NO.8 (Mirror/8K) |
Shining mirror finish |
Polished with fine wheels |
Reflectors, high-end components |
These finishes make sa240/a240 uns s44660 suitable for applications like 2B for desalination equipment or NO.4 for panels.
Keywords: ASME SA240/ASTM A240 UNS S44660 surface finish, UNS S44660 stainless steel surface
Gangsteel ensures that the ASME SA240/ASTM A240 UNS S44660 chemical composition is optimized for corrosion resistance and weldability, compliant with sa240/a240 uns stainless grades.
|
Element |
Percentage (%) |
|---|---|
|
Chromium (Cr) |
25.0 – 28.0 |
|
Molybdenum (Mo) |
3.0 – 4.0 |
|
Nickel (Ni) |
1.0 – 3.5 |
|
Titanium (Ti) + Niobium (Nb) |
0.20 – 1.00 |
|
Carbon (C) |
≤ 0.025 |
|
Manganese (Mn) |
≤ 1.0 |
|
Silicon (Si) |
≤ 0.75 |
|
Phosphorus (P) |
≤ 0.040 |
|
Sulfur (S) |
≤ 0.030 |
|
Nitrogen (N) |
≤ 0.035 |
|
Iron (Fe) |
Balance (~60%) |
Keywords: ASME SA240/ASTM A240 UNS S44660 chemical composition, UNS S44660 composition, ASME SA240 Gr S44660 composition
Gangsteel notes that the ASME SA240/ASTM A240 UNS S44660 mechanical properties balance strength and corrosion resistance, ideal for severe environments. Annealing at 870-950°C (1600-1742°F) optimizes performance.
|
Property |
Value at 20°C |
|---|---|
|
Tensile Strength (MPa) |
≥ 550 (80 ksi) |
|
Yield Strength (MPa) |
≥ 380 (55 ksi) |
|
Elongation (%) |
≥ 20 |
|
Hardness (HBW) |
≤ 220 |
|
Density |
7.80 g/cm³ (0.282 lb/in³) |
Keywords: ASME SA240/ASTM A240 UNS S44660 mechanical properties, UNS S44660 strength, ASME SA240 Gr S44660 mechanical properties
Gangsteel supplies sa240/a240 uns s44660 in various forms, compliant with ASTM A240 and ASME SA240:
Keywords: ASME SA240/ASTM A240 UNS S44660 specifications, UNS S44660 sheet specifications, ASME SA 240 Gr S44660 coil
Gangsteel highlights that ASME SA240/ASTM A240 UNS S44660 excels in extreme corrosive and high-temperature applications:
Case Study: A Middle Eastern desalination plant used UNS S44660 for evaporator tubing, saving 10% compared to sa240/a240 uns s44735.
Keywords: ASME SA240/ASTM A240 UNS S44660 applications, UNS S44660 uses, ASME SA240 Gr S44660 applications
Gangsteel presents a comparison of sa240/a240 uns s44660 with six ferritic grades:
|
Property |
UNS S44660 |
UNS S41003 |
UNS S41008 |
UNS S42900 |
UNS S43000 |
UNS S43035 |
UNS S44400 |
|---|---|---|---|---|---|---|---|
|
UNS Number |
S44660 |
S41003 |
S41008 |
S42900 |
S43000 |
S43035 |
S44400 |
|
Type |
Ferritic |
Ferritic |
Ferritic |
Ferritic |
Ferritic |
Ferritic |
Ferritic |
|
Chromium Content |
25.0-28.0% |
10.5-12.5% |
11.5-13.5% |
14.0-16.0% |
16.0-18.0% |
17.0-19.0% |
17.5-19.5% |
|
Nickel Content |
1.0-3.5% |
≤ 1.0% |
≤ 0.60% |
≤ 0.75% |
≤ 0.75% |
≤ 0.5% |
≤ 1.0% |
|
Manganese Content |
≤ 1.0 |
≤ 1.5 |
≤ 1.0 |
≤ 1.0 |
≤ 1.0 |
≤ 1.0 |
≤ 1.0 |
|
Molybdenum Content |
3.0-4.0% |
- |
- |
- |
- |
- |
1.75-2.50% |
|
Nitrogen Content |
≤ 0.035% |
≤ 0.03% |
- |
- |
- |
≤ 0.03% |
≤ 0.035% |
|
Carbon Content |
≤ 0.025% |
≤ 0.03% |
≤ 0.08% |
≤ 0.12% |
≤ 0.12% |
≤ 0.03% |
≤ 0.025% |
|
Corrosion Resistance |
Exceptional |
Good |
Good |
Good |
Good |
Excellent |
Excellent |
|
Strength |
High |
Moderate |
Moderate |
Moderate |
Moderate |
Moderate |
Moderate |
|
Temp Range |
Up to 1050°C |
Up to 650°C |
Up to 650°C |
Up to 675°C |
Up to 815°C |
Up to 815°C |
Up to 815°C |
|
Cost (USD/kg) |
4.5-6.5 |
2.5-4 |
3-5 |
3-5 |
3-5 |
3-5 |
3.6-6 |
|
Applications |
Desalination, chemical processing |
Structural supports |
Automotive, industrial |
Appliances |
Appliances |
Automotive exhausts |
Chemical processing |
Keywords: ASME SA240/ASTM A240 UNS S44660 vs related grades
Gangsteel ensures ASME SA240/ASTM A240 UNS S44660 aligns with global standards:
|
Standard |
Grade |
|---|---|
|
UNS |
S44660 |
|
W.Nr. |
1.4507 |
|
EN |
X2CrNiMoTi27-3 |
|
GB |
022Cr27Mo3Ni2 |
|
JIS |
SUS 446M |
|
ASTM |
A240 |
|
ASME |
SA240 |
Keywords: ASME SA240/ASTM A240 UNS S44660 equivalent, UNS S44660 equivalent, EN X2CrNiMoTi27-3, GB 022Cr27Mo3Ni2, JIS SUS 446M
Q: How does UNS S44660 compare to UNS S44400 in corrosion resistance and strength?
A: UNS S44660, with 25.0-28.0% chromium, 3.0-4.0% molybdenum, and 1.0-3.5% nickel, offers superior corrosion resistance (PREN ~35.0-39.0) and higher strength (tensile strength ≥ 550 MPa) compared to sa240/a240 uns s44400 (PREN ~20.5-24.5, tensile strength ≥ 415 MPa). Its higher alloy content makes it ideal for extreme environments like seawater desalination, while UNS S44400 suits milder chemical processing applications.
Q: Is UNS S44660 suitable for seawater desalination, and how does it compare to UNS S41003?
A: Yes, sa240/a240 uns s44660 is highly suitable for seawater desalination due to its exceptional corrosion resistance and high-temperature stability up to 1050°C (1922°F). Compared to sa240/a240 uns s41003, with lower chromium (10.5-12.5%) and no molybdenum, UNS S44660 offers significantly better corrosion resistance, making it ideal for harsh environments, while UNS S41003 is better for structural applications.
Q: What is the price difference between UNS S44660 and UNS S44700, and what drives this difference?
A: UNS S44660 is priced at USD 4.5-6.5 per kg (FOB), approximately 5-10% less expensive than sa240/a240 uns s44700 (USD 5-7.5 per kg) due to differences in alloy content and processing complexity. UNS S44700 has higher chromium (28.0-30.0%) and stricter impurity controls, increasing its cost. Factors like market demand, raw material availability, and production scale also influence the price difference.
Keywords: ASME SA240/ASTM A240 UNS S44660 FAQ, UNS S44660 stainless steel questions
Gangsteel invites you to contact them at admin@gangsteel.com for sa240/a240 uns s44660 quotes and custom solutions.
Keywords: ASME SA240/ASTM A240 UNS S44660 supplier, UNS S44660 sheet supplier, Gangsteel stainless steel exporter
ASME SA240/ASTM A240 UNS S44660 stainless steel sheet, UNS S44660 applications, ASME SA240 Gr S44660 mechanical properties
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