What is stainless steel core wire for MMAW electrodes, and how is it different from other welding wires?
Stainless steel core wire for MMAW (Manual Metal Arc Welding) electrodes is a specialized welding consumable used in various welding applications. Unlike other welding wires, which often have a flux coating, stainless steel core wire is designed with a solid steel core. This core serves as the main filler metal source during welding, eliminating the need for additional flux. The absence of flux simplifies the welding operation and reduces the risk of weld contamination.
Additionally, Stainless Steel Core Wire offers improved weld quality and enhanced resistance to corrosion and heat, making it particularly suitable for applications where the welded joints must withstand harsh environments or extreme temperatures. Its versatility and reliability have made it a preferred choice in the construction, automotive, aerospace, and manufacturing industries, where high-quality welds are crucial for structural integrity and performance.
Table Of Content
About Stainless Steel ER308 Core Wire
Stainless Steel ER309 Core Wire Specification
Stock Availability of SS ER310 Core Wire
Equivalent Grades Of Stainless Steel Core Wires
Chemical Composition Of Ss Core Wire
Stainless Steel ER316 Core Wire Wires Ready Stock
Stainless Steel ER430 Core Wire Applications and Uses
Supply & Export Destinations of Stainless Steel 307Si (18 8 Mn) Core Wire
What are the main applications and industries that utilize stainless steel core wire for MMAW electrodes?
Due to its exceptional properties, the stainless steel core wire for MMAW electrodes finds widespread use across various industries and applications. One of the primary applications is in the construction sector, which is employed for welding structural elements, bridges, and infrastructure components. The automotive industry uses this welding consumable to join stainless steel parts and components, ensuring vehicle safety and longevity. In aerospace, stainless steel core wire is vital for fabricating aircraft structures, engines, and critical components that demand high precision and corrosion resistance.
Moreover, the manufacturing industry utilizes this welding wire to create machinery, equipment, and tools, ensuring robust and durable welds. The food and beverage industry also benefits from using stainless steel core wire as it maintains the required sanitary conditions and resists corrosion, making it ideal for welding equipment used in food processing and storage. In essence, the versatility and reliability of Stainless Steel Core Wire make it an indispensable choice for industries that demand strong, corrosion-resistant, and enduring welds.
| S.No. | Ø(mm) | Ø (inches) | Cut Length (mm) / Coil (Kg) | Grade |
|---|---|---|---|---|
| 1. | 2.00 | 0.080 | 250 - 450 / 50 - 300 | ER 308, ER 308L, ER 308LSi, ER 309, ER 309L, ER 309LSi, ER310, ER 309, ER 309L, ER 309LSi, ER 316, ER 316L, ER 316LSi, ER347, ER430, 430LNB, 490TI, 307Si |
| 2. | 2.40 | 0.093 | ||
| 3. | 3.20 | 0.125 | ||
| 4. | 4.00 | 0.156 | ||
| 5. | 5.00 | 0.197 |
| Stainless Steel Core Wire Grade | AWS Classification |
|---|---|
| ER 308 | A5.4 E308 |
| ER 308L | A5.4 E308L |
| ER 308LSi | A5.9 ER308LSi |
| ER 309 | A5.4 E309 |
| ER 309L | A5.4 E309L |
| ER 309LSi | A5.9 ER309LSi |
| ER 310 | A5.4 E310 |
| ER 316 | A5.4 E316 |
| ER 316L | A5.4 E316L |
| ER 316LSi | A5.9 ER316LSi |
| ER 347 | A5.4 E347 |
| ER 430 | A5.9 ER430 |
| 430LNb | A5.9 E430LNb |
| 490Ti | A5.4 E307Si |
| 307Si (18 8 Mn) | A5.9 ER307 |
| SS | Chemical Composition (% by Weight) |
|---|---|
| ER 308 | Cr: 19.5-22.0, Ni: 9.0-11.0, Mn: 1.0-2.5, Si: 0.30-0.65, C: 0.03 max, P: 0.03 max, S: 0.03 max |
| ER 308L | Cr: 19.5-22.0, Ni: 9.0-11.0, Mn: 1.0-2.5, Si: 0.30-0.65, C: 0.03 max, P: 0.03 max, S: 0.03 max |
| ER 308LSi | Cr: 19.5-22.0, Ni: 9.0-11.0, Mn: 1.0-2.5, Si: 0.30-0.65, C: 0.03 max, P: 0.03 max, S: 0.03 max |
| ER 309 | Cr: 23.0-25.0, Ni: 12.0-14.0, Mn: 1.0-2.5, Si: 0.30-0.65, C: 0.03 max, P: 0.03 max, S: 0.03 max |
| ER 309L | Cr: 23.0-25.0, Ni: 12.0-14.0, Mn: 1.0-2.5, Si: 0.30-0.65, C: 0.03 max, P: 0.03 max, S: 0.03 max |
| ER 309LSi | Cr: 23.0-25.0, Ni: 12.0-14.0, Mn: 1.0-2.5, Si: 0.30-0.65, C: 0.03 max, P: 0.03 max, S: 0.03 max |
| ER 310 | Cr: 24.0-26.0, Ni: 19.0-22.0, Mn: 2.0 max, Si: 0.15-1.50, C: 0.08 max, P: 0.045 max, S: 0.030 max |
| ER 316 | Cr: 16.0-18.0, Ni: 10.0-14.0, Mn: 1.0-2.5, Mo: 2.0-3.0, Si: 0.30-0.65, C: 0.03 max, P: 0.03 max, S: 0.03 max |
| ER 316L | Cr: 16.0-18.0, Ni: 10.0-14.0, Mn: 1.0-2.5, Mo: 2.0-3.0, Si: 0.30-0.65, C: 0.03 max, P: 0.03 max, S: 0.03 max |
| ER 316LSi | Cr: 16.0-18.0, Ni: 10.0-14.0, Mn: 1.0-2.5, Mo: 2.0-3.0, Si: 0.30-0.65, C: 0.03 max, P: 0.03 max, S: 0.03 max |
| ER 347 | Cr: 17.0-20.0, Ni: 9.0-13.0, Cb: 10x(C) - 1.0 max, Mn: 1.0-2.5, Si: 0.30-0.65, C: 0.04-0.10, P: 0.03 max, S: 0.03 max |
| ER 430 | Cr: 16.0-18.0, Si: 0.75 max, C: 0.12 max, P: 0.04 max, S: 0.03 max |
| 430LNb | Cr: 16.0-18.0, Nb: 0.15-0.60, Si: 1.0 max, C: 0.025 max, P: 0.030 max, S: 0.030 max |
| 490Ti | Ti: 0.8-1.5, Cr: 12.0-16.0, Ni: 3.0-5.0, Cu: 0.75 max, Fe: Balance, C: 0.12 max, P: 0.040 max, S: 0.030 max |
| 307Si (18 8 Mn) | Cr: 18.0-20.0, Ni: 6.0-10.0, Mn: 6.0-10.0, Si: 0.90-1.80, C: 0.10 max, P: 0.04 max, S: 0.03 max |
Stainless Steel ER 308 Core Wire in General Fabrication
Stainless Steel ER 309LSi Core Wire in Automotive Welding
Stainless Steel ER 310 Core Wire in Robotic Welding
Stainless Steel ER 316LSi Core Wire in Tack Welding
Stainless Steel ER 347 Core Wire in Railroads
SS ER 430 Core Wire in Construction And Infrastructure
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Austenitic Stainless Steel Core Wire
Austenitic stainless steel core wire is a type of welding wire that is widely used in various welding processes, including Manual Metal Arc Welding (MMAW/SMAW), Gas Metal Arc Welding (GMAW/MIG), and Flux-Cored Arc Welding (FCAW). Austenitic stainless steels are a group of stainless steels that primarily consist of chromium (typically 18% or more) and nickel (usually 8% or more).
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