Bostrand LW1


Bostrand LW1

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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.

Bostrand LW1


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


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


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

We're as eager to put ESAB gear in your hands as you are to have it.  That's why we sell our products with distributors who'll give you the attention, support, and value you deserve.  Their expertise will make sure that you're as happy with the purchasing process as we know you'll be with your purchase itself.

To make things even easier, we've developed the online shopping list below.  As you browse our site, you'll be able to click on any product to have it added to this easy reference sheet.  And when you're done, you can send the list to yourself or print it out and bring it in to the distributor of your choice.

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.

Part Numbers and Accessories

Part Numbers : Bostrand LW1
Bostrand LW1 0.8mm 15kg 2302086700
Bostrand LW1 1.0mm 18kg 2302106710
Bostrand LW1 1.2mm 18kg 2302126710