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Introduction
SUS303 (UNS S30303) is non-magnetic Austenitic stainless steel, free-machining stainless steel product.It is used in situations where easy cutting and high surface finish are mainly required. 303 stainless steel improves cutting performance and high temperature resistance bonding performance. Best for automatic lathes, bolts and nuts.
Chemical components(%)
Composition | C | Si | Mn | P | S | Cr | Ni | Mo |
Min | \ | \ | \ | \ | \ | 17.00 | 8.00 | \ |
Max | 0.15 | 1.00 | 2.00 | 0.20 | 0.15 | 19.00 | 10.00 | 0.60 |
Mechanical properties
Rigidity | Tensile strength | Yield strength | Elongation |
HRB90-100 | ≥520MPa | ≥205MPa | ≥40% |
Physical properties
Density | Melting points | Specific heat | Magnetism | Resistivity | Thermal conductivity | Linear expansivity |
7.93g/cm3 | 1398-1420℃ | 500J/(Kg.℃） | \ | 72.0 Microhm-cm:(20℃) | 17.5W/(m.k)(100℃) | 17.3×10-6/K(20-100℃) |
Alternate material:
Alloy 303 is fairly corrosion resistance as compared to other 300 Series Stainless Steel like 304, 316 etc.
If we choose alternate alloy for Stainless steel 303, Alloy 304 is next best alternative to Alloy 303 with better corrosion resistance, weldability but at cost of machinability. Another possible alternative is Alloy 316 with improved corrosion compared to 303& 304. AISi 416 is also a possible alternative with higher machinability with lower corrosion resistance than 303.
Applications
303 stainless steel popular in products same fastener,like Nuts and bolts,Aircraft fittings,Gears,Screws,Shafts,Electrical switch gear components,Bushings.
MONO Group is one of Austenitic stainless steel, Duplex stainless steel and Precipitation-hardened stainless steel etc manufacturer&Supplier&Wholesaler from China,We can supply ASTM /DIN/ISO/GB stndard high quality alloy plate,sheet,round bar,tube.pipes,fittings,flange,pls contact us freely for your RFQ to info@monokj.com
