Bostrand LW1
Bostrand LW1 is a general purpose mild steel copper coated MAG wire. De-oxidised with manganese and silicon, it produces quality welds with excellent radiographic and mechanical properties. Bostrand LW1 is ideal for welding most mild and carbon-manganese steels e.g. Lloyd's grade A to EH.

Documents
Typical Tensile Properties
Condition | As Welded | As Welded | Stress Relieved | As Welded | Normalized |
920°C 0.5h | |||||
Shielding Gas | AWS CO2 (C1) | EN 80Ar/20CO2 (M21) | EN 80Ar/20CO2 (M21) | EN CO2 (C1) | EN 80Ar/20CO2 (M21) |
Tensile Strength | 560 MPa | 495 MPa | 540 MPa | 455 MPa | |
Yield Strength | 480 MPa | 380 MPa | 450 MPa | 320 MPa | |
Elongation | 26 % | 28 % | 25 % | 32 % | |
Testing Time | 15 hr | ||||
Testing Temperature | 620 degC |
Deposition Data
Current | Deposition Rate | Diameter | Voltage | Wire Feed Speed |
60-200 A | 0.8-2.3 kg/h | 0.8 mm | 18-24 V | 0.8-2.3 m/min |
80-300 A | 1.0-5.5 kg/h | 1.0 mm | 18-32 V | 1.0-5.5 m/min |
120-380 A | 1.3-8.0 kg/h | 1.2 mm | 18-35 V | 1.3-8.0 m/min |
30-100 A | 0.7-1.7 kg/h | 0.6 mm | 15-20 V | 0.7-1.7 m/min |
225-550 A | 2.1-9.4 kg/h | 1.6 mm | 28-38 V | 2.1-9.4 m/min |
Classifications
Wire Electrode |
EN ISO 14341-A : G 3Si1 SFA/AWS A5.18 : ER70S-6 |
Weld Metal |
EN ISO 14341-A : G 38 2 C1 3Si1 EN ISO 14341-A : G 42 3 M21 3Si1 |
Approvals
Grade | 3YSA (M21) |
Society | ABS |
Approvals are based on factory location. Please contact ESAB for more information. |
Consumable Characteristics
Alloy Type | Carbon-manganese steel (Mn/Si-alloyed) |
How to purchase Bostrand LW1
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To find an ESAB distributor, just use the distributor locator tool featured on every page of our site. Alternatively, you can call our support line at +361 382 1235 and we'll point you in the right direction.