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Stainless Steel 304

Material Type：Metal
Material Name：Stainless Steel 304
Alternative Names：UNS S30400 | EN 1.4301 | ASTM A240
Process Compatibility：CNC Milling, CNC Turning, Welding, Forming
Stainless Steel CNC Machining Service的副本
Stainless Steel 304
Description
Stainless Steel 304 is the most widely used austenitic stainless steel, offering an excellent balance of corrosion resistance, formability, and mechanical properties. It is often referred to as "18/8 stainless" due to its composition of approximately 18% chromium and 8% nickel. With good weldability and hygienic properties, it is a preferred material in food processing, medical equipment, architecture, and general industry.
Lead Time: < 10 days
Wall Thickness: 0.75 mm
Tolerances: ±0.005″ (±0.125mm)
Max Part Size: 200 cm x 80 cm x 100 cm
 
Classification of Metal Performance Parameters
Mechanical Properties Ultimate Tensile Strength 750
Yield Strength 215
Young’s Modulus / Elasticity 200
Elongation at Break 40
Hardness HB 180
Fatigue Strength 240
Physical Properties Density 8
Corrosion Resistance Excellent
Magnetism Non-magnetic
Weldability Excellent
Impact Toughness High
Thermal Properties Maximum Service Temperature 870
Thermal Expansion Coefficient 17.3
Thermal Conductivity 16.2
Creep Resistance Moderate
Electrical Properties Electrical Resistivity 72
Electrical Conductivity 3
Dielectric Strength N/A
Processing & Surface Treatment Machinability Good
Surface Finish Compatibility Excellent
Formability Excellent
Special Properties Biocompatibility Yes
Flame Retardancy Yes
UV Resistance Moderate
Recyclability Yes

Introduction to Stainless Steel 304

What
Stainless Steel 304 (UNS S30400) is an austenitic stainless steel that contains about 18% chromium and 8% nickel. This combination provides excellent corrosion resistance in a wide range of environments, good formability, and strength. It is non-magnetic in the annealed state and maintains toughness down to cryogenic temperatures. Because of its versatility, 304 is the default choice for countless industrial and consumer applications, from kitchen equipment to chemical containers.
Advantages
Excellent corrosion resistance in most atmospheric and mild chemical environments
Good formability and weldability
Hygienic and easy to clean, ideal for food-grade applications
Maintains strength and toughness at cryogenic temperatures
 
 
 
Applications
Food and beverage processing equipment
Medical instruments and kitchenware
Chemical containers and storage tanks
Building facades, railings, and architectural components
 
 
 
 
 
 

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