304L Stainless Steel (1.4307) is a low-carbon, highly weldable austenitic stainless steel. Ideal for fabrication, brewing, & architectural applications. Get a custom quote & free sample from ZYTC Alloy.
Delivery :
FOB
minimum order :
50 kilograms
Supply Ability :
5000kilograms / Month
Stock Time :
7-10Day
Country of Origin :
CHINA
Quantity :
add to cart
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304L is the low-carbon version of the classic 18/8 stainless steel, specifically formulated to prevent carbide precipitation and intergranular corrosion in welded fabrications. With maximum carbon content of 0.03%, it offers identical corrosion resistance to standard 304 while eliminating sensitization risks during welding. Often supplied as"dual certified"(meeting both 304 and 304L specifications), this alloy is the preferred choice for heavy-gauge welded components, chemical processing equipment, and applications requiring maximum corrosion protection after welding .
1. Product Specifications & Physical Data
ZYTC Alloy supplies 304L stainless steel in comprehensive mill forms for industries requiring verified corrosion resistance and weldability.
Available Forms: Sheet, plate, bar, strip, pipe, tube, coil, fittings, and custom configurations .
Specifications: ASTM A240, ASTM A276, ASTM A312, EN 10088-2 1.4307, UNS S30403 .
Chemical Composition (Weight %)
304L Stainless Specification
Chromium (Cr)
17.5 - 19.5
Nickel (Ni)
8.0 - 10.5
Carbon (C)
0.03 max.
Manganese (Mn)
2.0 max.
Silicon (Si)
1.0 max.
Phosphorus (P)
0.045 max.
Sulfur (S)
0.030 max.
Nitrogen (N)
0.10 max.
Iron (Fe)
Balance
Physical Properties
Metric
Imperial
Density
7.9 - 8.0 g/cm³
0.285 - 0.289 lb/in³
Melting Point
1400 - 1450°C
2550 - 2640°F
Modulus of Elasticity
193 - 200 GPa
28.0 - 29.0 × 10⁶ psi
Thermal Conductivity (RT)
16.2 W/m·K
112 BTU·in/hr·ft²·°F
Thermal Expansion (20-100°C)
17.2 µm/m·°C
9.6 µin/in·°F
Mechanical Properties (Minimum)
Value
Unit
Proof Strength (0.2% offset)
175 MPa
25 ksi
Tensile Strength
500-700 MPa
72.5-101.5 ksi
Elongation (A50)
45%
45%
Hardness (Brinell)
215 max.
215 max.
2. Fabrication & Material Comparison
Heat Treatment: Solution anneal 1010-1120°C (1850-2050°F), rapid cool (water quench or accelerated air cool) .
Forming: Excellent formability in annealed condition; work-hardening rate moderate .
Machining: Good machinability; requires sharp cutting edges, positive feeds, and adequate coolant to prevent work hardening; chip breakers recommended .
Welding: Excellent weldability using all common methods; 308L filler recommended; no post-weld heat treatment required to restore corrosion resistance .
Material Comparison:
vs. 304 Stainless: Lower carbon prevents sensitization; identical mechanical and corrosion properties; preferred for welded fabrications .
vs. 316L: Lower molybdenum content; less resistant to pitting and crevice corrosion in chloride environments .
vs. 321 Stainless: 304L achieves intergranular corrosion resistance through low carbon rather than titanium stabilization; more cost-effective .
vs. 304H: Lower carbon vs. higher carbon (0.04-0.10%) for high-temperature strength; 304L selected for welding applications .
3. Applications
Food & Beverage: Brewery, dairy, pharmaceutical production equipment, saucepans, cutlery
Contact ZYTC Alloy for certified 304L stainless steel materials with complete traceability, ASTM/EN specifications, technical datasheets, and competitive pricing on standard sizes or custom-fabricated components.
