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SS304 Stainless Steel Design/Steel Metal Innovation
We are a leading steel ball factory and exporter in Guangdong, We have professional work team and
As a professional factory of stainless steel products, our products have covered many countries for more
than 8 years , including the USA, Germany, Italy, Australia, France, Russia, UK, Romania, Cyprus,
Ireland, Kuwait, Greece, etc.
We are professional factory for all kinds of stainless steel fountain, stainless steel sculpture,steel
sculpture , garden steel sphere, stainless steel decoration fitting etc.
1. Simple polishing the welding line, or mirror polished.
2. Material: stainless steel 304, 316, 201, mild steel, copper and aluminum.
3. Welding: The spheres will be welded by machine automatically.
4. Waterproof: From IP61 to IP68 according to demand.
5. Thickness: from 0.5mm to 3.0mm, or over 3.0mm.
6. MOQ: 500 pcs per model for standard spheres
7. Diameters: from 10mm to 2500mm
Grade 304 is the standard "18/8" stainless; it is the most versatile and most widely used stainless steel, available in a wider range of products, forms and finishes than any other. It has excellent forming and welding characteristics. The balanced austenitic structure of Grade 304 enables it to be severely deep drawn without intermediate annealing, which has made this grade dominant in the manufacture of drawn stainless parts such as sinks, hollow-ware and saucepans. For these applications it is common to use special "304DDQ" (Deep Drawing Quality) variants. Grade 304 is readily brake or roll formed into a variety of components for applications in the industrial, architectural, and transportation fields. Grade 304 also has outstanding welding characteristics. Post-weld annealing is not required when welding thin sections.
Excellent in a wide range of atmospheric environments and many corrosive media. Subject to pitting and crevice corrosion in warm chloride environments, and to stress corrosion cracking above about 60°C. Considered resistant to potable water with up to about 200mg/L chlorides at ambient temperatures, reducing to about 150mg/L at 60°C.
Good oxidation resistance in intermittent service to 870°C and in continuous service to 925°C. Continuous use of 304 in the 425-860°C range is not recommended if subsequent aqueous corrosion resistance is important. Grade 304L is more resistant to carbide precipitation and can be heated into the above temperature range.
Solution Treatment (Annealing) - Heat to 1010-1120°C and cool rapidly. These grades cannot be hardened by thermal treatment.
Composition ranges for 304 grade stainless steel
Mechanical properties of 304 grade stainless steel
Tensile Strength (MPa) min
Yield Strength 0.2% Proof (MPa) min
Elongation (% in 50mm) min
Rockwell B (HR B) max
Brinell (HB) max
Physical properties of 304 grade stainless steel in the annealed condition
Elastic Modulus (GPa)
Mean Coefficient of Thermal Expansion (μm/m/°C)
Thermal Conductivity (W/m.K)
Specific Heat 0-100°C (J/kg.K)
Electrical Resistivity (nΩ.m)
Grade specifications for 304 grade stainless steel