630 Stainless Steel Wire
Stainless Steel 630 alloy is one of the most popular martensitic stainless-steel alloys, and offers a long list of benefits when made into wire: Machinable, High strength and hardness, Corrosion resistant, Excellent mechanical properties, Martensitic stainless steel.
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Description
Gnee Steel (Tianjin) Co., Ltd. is one of the most professional manufacturers and suppliers of 630 stainless steel wire in China. With abundant experience, we warmly welcome you to wholesale customized 630 stainless steel wire from our factory. For price consultation, contact us.
Products Description
Filler metal ALLOY 630 is a precipitation hardening stainless steel used for welding of materials of similar chemical composition.630 Stainless Steel wire is strong, machinable, & corrosion-resistant.ALLOY 630 is primarily designed for welding ASTM A-564, type 630 (17 chromium, 4 nickel), and precipitation hardenable steel.
630 wire of stainless steel offers the combined characteristics of a strong, corrosion resistant, easily machinable weld metal.Depending on the weld dimensions and applications, Filler metal ALLOY 630 may be used in the as welded, welded plus precipitation hardened, or welded plus solution treated plus precipitation hardened condition.
Products properties
Stainless Steel 17-4 alloy is a blend of carbon, chromium, copper, iron, manganese, nickel, niobium, phosphorus, silicon, sulfur and tantalum materials.
630 Stainless Steel alloy is composed of:
| Carbon | 0.07, max. |
| Silicone | 1.00, max. |
| Manganese | 1.00, max. |
| Phosphorus | 0.040, max. |
| Sulfur | 0.030, max. |
| Nickel | 3.00-5.00 |
| Chromium | 15.00-17.50 |
| Copper | 3.00-5.00 |
| Iron | Balance |
| Other | Cb+Ta=0.15-0.45 |
*This is for information purposes only. Actual numbers may vary.
Mechanical
| Density, g/cm3 (lb/in3) | 7.8 (0.280) |
| Melting point, °C (°F) | 1405-1440 (2560-2625) |
| Specific heat capacity, J/kg·K (Btu/lb ·°F) at 20 °C (68 °F) | 460 (0.110) |
| Electrical resistivity, μΩ·m at 20°C (μΩ·in at 68 °F) | 0.800 |
| Magnetic permeability | 1.02 (Approximate) |
| Elastic modulus (Modulus of Elasticity), Gpa (ksi) | 200 (29) |
| Thermal conductivity, W/m·K (Btu/ft · h ·°F) | 14.2 (8.2) at 100 °C (212 °F) 19.1 (11.3) at 500 °C (932 °F) |
| Coefficient of thermal expansion (CTE), 10-6/K (μin./in. ·°F) | 10.4 (5.8) at 0-100 °C (32-212 °F) 10.9 (6.0) at 0-315 °C (32-600 °F) 11.7 (6.5) at 0-538 °C (32-1000 °F) |
*This is for information purposes only. Actual numbers may vary.
630 Stainless Steel Wire

630 SS wire has many uses in many industries. Today, Stainless Steel 17-4 alloy wire is widely used in the aerospace, chemical processing, oil and petroleum, food processing, kitchen utensils and industrial hardware industries.
Wire manufactured from Stainless Steel 17-4 can be used for:
- Shafts
- Aerospace applications
- Chemical processing equipment
- Oil and petroleum refining equipment
- Food processing equipment
- Metalworking
- Springs
- Washers
- Fittings
- Fasteners
customer case
Over the last 30 years, we have been serving our clients, we have built a strong clientele across 32 countries and 15 industrial verticals, right from basic industries such a paper to highly demanding offshore services.

FAQ
Q: What product information must I provide before purchasing?
A:Please provide the grade, width, thickness, surface treatment requirements and the quantity you require.
Q: What shipping ports are there?
A:We usually ship from Shanghai, Tianjin, Qingdao and Ningbo ports.
Q: What are your payment terms?
A:30% T/T in advance, 70% balance before shipment or based on copy of bill of lading or L/C at sight.
Q: What about product pricing information?
A:Prices vary due to regular changes in raw material prices.
Q: Can I send samples?
A:Of course, we provide free samples and express delivery to customers all over the world.
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