304 Stainless Steel Wire

304 stainless steel wire is made of 304 stainless steel (06Cr19Ni10) of ASTM A276 standard, and is a round or oval cross-section metal wire made by cold drawing, annealing and other processes. It has excellent corrosion resistance, high strength and good processing performance. It is suitable for harsh environments such as chemical, medical, and food. It is an austenitic stainless steel containing Cr, Ni, C, Mn, Si, P, and S elements. Wanzhi Steel specializes in the production of 304 stainless steel wire, with a large number of conventional diameters in stock, supports surface treatments such as bright and matte, and accepts customized solutions. If you are interested, please contact us.

304 stainless steel wire Specification

Item	304 stainless steel wire
Place of Origin	Hebei, China
Delivery Time	15-21 days
Supply Form	Coil, Spool
Application	Tie wire, lashing, forming wire, filters
C Content (%)	≤0.08
Si Content (%)	≤1.00
Color	Silver
Coil Weight	Can be specified
Standard	AISI, ASTM, DIN, JIS, GB, EN
Payment term	TT 30% Advance + 70% Balance
Sample	Free Available
Price Item	FOB, CIF, EXW, CFR, etc
Packing	Standard export packaging
Certification	ISO 9001, SGS, ABS, BV
MOQ	5 Tons

Common Aliases

• 304 stainless steel wire: a common name in the industry, emphasizing the raw material form.
• A2 stainless steel wire: a code in the European standard EN ISO 3506, referring to the corrosion resistance level of 304.
• 18-8 stainless steel wire: derived from the composition ratio: 18% chromium, 8% nickel, it is a popular name for 304.
• SUS304 steel wire: a designation in the Japanese JIS standard, commonly found in the East Asian market.

Physical properties

• Density: 7.93 g/cm³ (or 8.03 g/cm³, slightly different from different sources).
• Melting point: 1398~1454℃.
• Specific heat capacity: 0.50 kJ/(kg·K) (0℃~100℃).
• Thermal conductivity: 16.3 W/(m·K) (100℃), 21.5 W/(m·K) (500℃).
• Linear expansion coefficient: 17.2 × 10⁻⁶/K (0℃~100℃), 18.4 × 10⁻⁶/K (0℃~500℃).
• Resistivity: 0.73 × 10⁻⁶ Ω·m²/m (20℃).
• Longitudinal elastic modulus: 193 kN/mm² (20℃).

Mechanical properties

• Yield strength: ≥205 MPa.
• Elongation: ≥40%.
• Hardness: ≤201 HBW, ≤92 HRB, ≤210 HV.
• Magnetism: Non-magnetic, but may show weak magnetism after cold working.
• Tensile strength: ≥515 MPa (solution treated state), up to 1035 MPa (H1/2 state).

Tensile Strength & Elongation Table
State	Tensile strength (MPa)	Elongation (%)
Soft (O)	520-680	≥40
Half-hard (1/2H)	780-980	≥20
Fully hard (H)	1250-1500	≥3

Grade and surface treatment

Common grades

• 304: General purpose, balanced corrosion resistance.
• 304L (022Cr19Ni10): Ultra-low carbon (C≤0.03%), resistant to intergranular corrosion.
• 304H (07Cr19Ni10): High carbon, excellent high temperature strength (≤800℃).

Surface Treatment Type

Treatment methods	Surface roughness (Ra)	Applicable scenarios
Bright annealing (BA)	≤0.2μm	Medical devices, electronic components
Pickling (AP)	0.4-0.8μm	Industrial structural parts
Wire drawing (HL)	0.3-0.6μm	Decorative building materials
Electrolytic polishing (EP)	≤0.1μm	Ultra-high cleanliness requirements

Common gauges

• 28GA: The corresponding thickness is 0.38 mm.
• 26GA: The corresponding thickness is 0.46 mm.
• 24GA: The corresponding thickness is 0.61 mm.
• 22GA: The corresponding thickness is 0.76 mm.
• 20GA: The corresponding thickness is 1.00 mm.
• 18GA: The corresponding thickness is 1.25 mm.
• 16GA: The corresponding thickness is 1.60 mm.
• 14GA: The corresponding thickness is 2.00 mm.
• 12GA: The corresponding thickness is 2.70 mm.

Key Features

• Excellent corrosion resistance: Contains more than 18% chromium and more than 8% nickel, forms a dense oxide film in air, water, weak acid and alkali environment, and effectively resists rust.
• Good processability: Strong ductility, can be easily stamped, bent, weaved and other operations, not easy to break or deform after processing.
• Excellent high temperature resistance: It can still maintain stable performance in high temperature environment below 800℃, and the short-term use temperature can reach 1000℃ (long-term exposure should be avoided).
• Non-magnetic or weak magnetic: It is non-magnetic in the solution treatment state, and may produce weak magnetism after cold processing, which is suitable for scenes sensitive to magnetism.
• Beautiful and easy to maintain: No additional coating is required to keep the surface bright and beautiful, and it is simple to clean, which is suitable for fields with high requirements for appearance.
• Environmental protection and safety: It does not contain harmful substances such as lead and mercury, meets food grade standards, can directly contact food, and is widely used in tableware, kitchenware, and medical equipment.
• High strength and toughness: Tensile strength ≥515 MPa, yield strength ≥205 MPa, suitable for occasions that require load-bearing or impact resistance.

Main Uses

• Construction and decoration: used for building fences, stair handrails, balcony guardrails, etc., indoor and outdoor decorative nets, anti-fall nets. Support materials or decorative components of building curtain walls.
• Food and medical: conveyor belts, screens, and mixers for food machinery. Surgical instruments, medical stents, disinfection baskets, etc., kitchen utensils such as colanders, faucet filters, flour screens, etc.
• Industry and manufacturing: used for liquid or gas filtration in chemical, petroleum, pharmaceutical and other industries, making springs, screws, nuts, etc. It is also used for material screening and transportation in mining and metallurgy.
• Life and home: such as hangers, hooks, racks, pet cages, bird cages, flower stands, gardening nets, can be used outdoors, resistant to wind and rain erosion.
• Automobiles and ships: exhaust systems, fasteners, decorative strips, etc., ship accessories, aviation fasteners, etc., meet high strength and corrosion resistance requirements.
• Electronics and electrical: used for electromagnetic shielding of electronic equipment, or wires, integrated circuit components. Battery and sensor housing.

• Environmental protection and water treatment: Made into sewage treatment network to remove impurities and corrosion-resistant. Made into support network for air filter to improve filtering efficiency.
• Arts and crafts: Used in sculptures, jewelry, decorations, handicrafts, lamps, etc., with both artistic and practical features.

Theoretical weight calculation formula

Weight (kg) ≈ Diameter (mm)² × Length (m) × 0.00623

 

Coefficient source: Density of 304 stainless steel 7.93 × 0.000785 ≈ 0.00623.

Wanzhi Steel Factory Strength  

• Production equipment: dozens of continuous wire drawing units and bright annealing production lines, fully automatic electrolytic polishing tanks.
• Testing capabilities: direct reading spectrometer (OES) component analysis, salt spray test chamber, large-scale electronic tensile machine, microscopic testing.
• Customized service: Supports customization of special size, hardness and surface treatment.
• Fast delivery: We have a large inventory of common specifications and fast delivery. We can meet urgent orders.

Conclusion

304 stainless steel wire has become a basic material for industry and civilian use with its excellent comprehensive performance. Wanzhi Steel** relies on advanced precision wire drawing technology and a strict quality system to provide a full range of products from micro-fine wires to thick wires, and provides special solutions for high-end fields such as medical and electronics.

 

To obtain technical parameters or samples, please contact our engineering team!

 

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Wanzhi Steel is an ISO 9001-certified steel factory located in Hebei Province, China. For 14 years, Wanzhi Steel has been specializing in the production of Stainless steel tie wire, Aluminium Wire, Galvanized Wire, Oval Wire, Steel Wire Rod, Baling Wire, Low Carbon Steel Wire, Zinc Aluminum Alloy Wire, and Galfan Wire with a monthly output of 1800 tons. With high-quality products and good services, its products have been exported to more than 120 countries around the world.

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