what is 1.4301 material properties？
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What is material 1.4301?
1.4301 stainless steel is a widely used austenitic stainless steel grade internationally, equivalent to AISI 304 steel, also known as 304 stainless steel or commonly referred to as "18/8 stainless steel." It is primarily composed of iron, chromium (18-20%), and nickel (8-10.5%), possessing excellent corrosion resistance, good mechanical properties, and ease of processing (easy to form and weld). It is widely used in construction, food processing, household goods, and chemical equipment, among other fields.
What material is 1.4301 equivalent to stainless steel?
Material 1.4301 is the European standard (EN) designation for the widely used AISI 304 stainless steel, also known as X5CrNi18-10. It is an austenitic stainless steel containing 18% chromium and 8% nickel, and is the most common type of stainless steel, sometimes referred to as "18/8". It is equivalent to UNS S30400, JIS SUS 304, and BS 304S31.
what is 1.4301 material properties?
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What is the corrosion resistance of 1.4301 stainless steel?
1.4301 stainless steel (AISI 304) offers excellent corrosion resistance in many general environments, like food processing and mild chemicals, due to its chromium-nickel composition, but it's susceptible to pitting/crevice corrosion in chlorides (seawater) and stress corrosion cracking (SCC) at elevated temperatures (>60°C), requiring grades like 1.4401 (316) for harsher, chloride-rich conditions or 1.4307 (304L) after welding to prevent intergranular corrosion.
Weldability of 1.4301 stainless steel:
1.4301 (AISI 304) stainless steel offers excellent weldability using common techniques like TIG, MIG, and spot welding, doesn't typically need preheating, but is susceptible to intergranular corrosion (sensitization) if heavily welded, requiring post-weld annealing for critical applications or opting for 304L (1.4301L) (low carbon) to prevent this, especially in thicker sections or high-heat service.
Strength of 1.4301 stainless steel:
1.4301 stainless steel (AISI 304) generally offers a tensile strength of 500–700 MPa (72,500–101,500 psi) and a yield strength (0.2% offset) around 205–230 MPa (29,700–33,350 psi) in its annealed state, with good ductility (elongation ~40%) and non-magnetic properties, making it a versatile "classic" austenitic grade with excellent weldability and corrosion resistance in many environments.
What is the maximum operating temperature for 1.4301 stainless steel?
The maximum operating temperature for 1.4301 (AISI 304) stainless steel varies with service type, offering good oxidation resistance up to 870°C (1600°F) for intermittent service and 925°C (1700°F) for continuous service, though continuous use above 860°C (1580°F) isn't recommended if water corrosion resistance is needed; for high-strength applications above 500°C, grade 304H is better, and its general melting range is 1400-1450°C.
What is the uses of 1.4301 stainless steel?
Kitchen & Household: Sinks, saucepans, cutlery, workbenches, domestic appliances like ovens and refrigerators.
Architecture: Handrails, decorative panels, building facades, window frames.
Food & Beverage Industry: Production lines, dairy equipment, brewery tanks, storage tanks.
Chemical Industry: Reactors, storage tanks, piping for various liquids.
Automotive: Exhaust systems, trims, fasteners, vehicle components.
General Fabrication: Tubing, welded structures, general apparatus, springs, nuts, and bolts.
1.4301 stainless steel (EN standard, equivalent to AISI 304) is one of the most widely used austenitic stainless steels, possessing excellent formability and weldability, making it ideal for processing into sheets, coils, tubes, and structural components. As a proven, globally recognized steel grade conforming to EN, ASTM, and ISO standards, it offers stable quality and a long service life, helping customers reduce total lifecycle costs while meeting international compliance requirements.
