Böhler EMK 8-Ultra 1.0 mm welding wire is a copper-coated G4Si1 ER70S-6 MIG/MAG wire for structural and fine-grained steels with a yield strength up to 460 MPa. You buy it at 2.09 EUR net per kg (about 2.09 EUR), 2,102.73 EUR net per 1008 kg pallet, in whole pallets only, and pallet transport within Poland is a flat 69.77 EUR net per order (about 69.77 EUR net, 85.81 EUR gross), whatever the number of pallets. This price applies to this batch while stock lasts, and we sell the wire as an authorised voestalpine Böhler Welding distributor. Lowest price of the same pallet in our shop in the 30 days before this offer: 2,517.66 EUR net (3,096.72 EUR gross), i.e. 2.50 EUR net per kg. One 18 kg spool therefore costs you 37.55 EUR net instead of 44.96 EUR net (161.46 instead of 44.96 EUR), which is 7.41 EUR net less on each of the 56 spools.
What you buy: a 1008 kg pallet, 56 spools of 18 kg
One pallet holds 56 spools of 18 kg of Böhler EMK 8-Ultra 1.0 mm wire, 1008 kg in total. We sell this batch in whole pallets only, never split into spools. The price on the product page is per pallet, and in the quantity field you enter the number of pallets: 2 gives you 2016 kg, 8 gives you 8064 kg. Pallet transport within Poland is added to the order at 69.77 EUR net (about 69.77 EUR net, 85.81 EUR gross), and transport to other EU countries is calculated at checkout. The price is set in Polish zloty at 2.09 EUR net per kg and shown here at the fixed rate of 1 EUR per EUR. A loaded pallet weighs over a tonne, so have a forklift or pallet truck ready for unloading.
- 1 pallet = 56 spools of 18 kg = 1008 kg
- Price: 2.09 EUR net per kg, about 2.09 EUR
- Pallet: 2,102.73 EUR net, 2,586.36 EUR gross with 23% VAT
- 18 kg spool: 37.55 EUR net at the offer price, compared with 44.96 EUR net at the regular price, you save 7.41 EUR net per spool
- Saving per pallet: 7.41 EUR net on each of 56 spools, 414.92 EUR net in total (about 415 EUR net)
- Pallet transport within Poland: flat 69.77 EUR net per order (about 69.77 EUR net, 85.81 EUR gross), whatever the number of pallets
- Other EU countries: transport cost calculated at checkout
- Order: whole pallets only, you enter the number of pallets in the quantity field
Böhler EMK 8-Ultra wire: classification, properties and base materials
The classification G 46 4 M21 4Si1 and G 46 4 C1 4Si1 to EN ISO 14341-A means a weld metal with a yield strength of at least 460 MPa, a tensile strength of 530 to 680 MPa, an elongation of at least 20% and 47 J impact energy at -40 °C, under M21 or pure CO2. The Böhler data sheet gives typical all-weld metal values under M21 of Re 490 MPa, Rm 610 MPa, A5 26% and 115 J at -50 °C with a minimum of 75 J, and under CO2 480 MPa, 580 MPa, 28% and also 115 J. The wire joins steels with a yield strength up to 460 MPa: S235 to S355 in quality grades JR, J0 and J2, S450J0, fine-grained S275N to S460N and S275M to S460M, pressure vessel steels P235GH to P355GH, fine-grained P275NL1 to P460NL1, line pipe steels L245NB to L415NB and cast steels GE200 to GE240. You weld with direct current, wire on the positive pole (DC+), under shielding gases C1, M1, M2 and M3 to EN ISO 14175. The position pictogram in the manufacturer's data sheet covers all welding positions, vertical up and vertical down included. The wire holds TÜV, DB, CWB, DNV and RINA approvals and carries the CE mark.
Why 4Si1 and what Ultra means
The 4Si1 symbol stands for a wire with more silicon and manganese than the common 3Si1 type, in EMK 8-Ultra typically 0.1% C, 1.0% Si and 1.7% Mn. Ultra is the name of Böhler's latest series of copper-coated solid wires. The manufacturer states that the new copper surface technology prevents clogging and flaking of the coating. According to Böhler, strictly controlled raw material and optimised chemistry give a stable arc, fewer silicate islands on the weld face and less post-weld cleaning. The Ultra series is designed for both manual and fully automated welding.
How to set up your welder for 1.0 mm wire
Fit drive rolls with a V groove for 1.0 mm, a steel liner sized for this diameter and a 1.0 mm contact tip, and connect the torch to the positive pole (DC+). The 18 kg spool is a BS300 wire basket, which according to Böhler needs no adapter. Set the lowest roll pressure at which the wire feeds without slipping, because too much pressure flattens the wire, strips the copper and the flakes clog the liner. On a synergic machine, pick the program for SG2/SG3 (G3Si1/G4Si1) steel wire 1.0 mm and your gas, then trim the arc length. Keep the wire stick-out at 10 to 15 mm in short arc and 15 to 20 mm in spray arc, and set the M21 gas flow to about 12 to 15 l/min. Use short arc for thin sheet and out-of-position welds, and keep spray arc in M21 for thicker sections in PA and PB. Pure CO2 will not give you a spray arc, and spatter will be higher than with M21.
Technical data of Böhler EMK 8-Ultra 1.0 mm
| Manufacturer | voestalpine Böhler Welding |
|---|---|
| Type | copper-coated solid MIG/MAG wire |
| EN ISO 14341-A | G 46 4 M21 4Si1, G 46 4 C1 4Si1 |
| AWS A5.18 / SFA-5.18 | ER70S-6 |
| CSA W48-23 | B-G 55A 4 C1 S6 |
| Diameter | 1.0 mm |
| Packaging | 18 kg spool (BS300 wire basket), 56 spools per pallet, 1008 kg |
| Typical analysis | C 0.1%, Si 1.0%, Mn 1.7% |
| Weld metal condition | as welded, no heat treatment |
| Yield strength Re | M21: 490 MPa, C1: 480 MPa (min. 460 MPa) |
| Tensile strength Rm | M21: 610 MPa, C1: 580 MPa (530 to 680 MPa) |
| Elongation A5 | M21: 26%, C1: 28% (min. 20%) |
| Impact energy KV at -50 °C | 115 J (min. 75 J) |
| Polarity | DC+ |
| Shielding gases (EN ISO 14175) | C1, M1, M2, M3 |
| Welding positions | all, as per the pictogram in the manufacturer's data sheet |
| Approvals | TÜV (20298), DB (42.132.99), CWB, DNV, RINA, CE |
| Price | 2.09 EUR net per kg (about 2.09 EUR), 2,102.73 EUR net, 2,586.36 EUR gross per pallet |
| Transport within Poland | 69.77 EUR net per order (about 69.77 EUR net, 85.81 EUR gross) |
Questions about Böhler EMK 8-Ultra 1.0 mm wire on pallets
How does G4Si1 (SG3) wire differ from G3Si1 (SG2)?
G4Si1 has more silicon and manganese than G3Si1 (to EN ISO 14341, Si 0.80 to 1.20% and Mn 1.60 to 1.90% against 0.70 to 1.00% and 1.30 to 1.60%). Böhler targets EMK 8-Ultra at steels up to 460 MPa and EMK 6-Ultra at steels up to 420 MPa. Both wires are classified AWS ER70S-6.
How much does a pallet of Böhler EMK 8-Ultra 1.0 mm wire cost?
A 1008 kg pallet costs 2,102.73 EUR net, which at the fixed rate of 1 EUR per EUR is 2,102.73 EUR net, 2,586.36 EUR gross with 23% VAT. It follows from the price of 2.09 EUR net per kg, valid for this batch while stock lasts. Lowest price of the same pallet in our shop in the 30 days before this offer: 2,517.66 EUR net (3,096.72 EUR gross), i.e. 2.50 EUR net per kg. On one pallet you therefore save 414.92 EUR net (about 415 EUR), that is 0.41 EUR net per kg. Two pallets are 2016 kg of wire, eight pallets 8064 kg.
How much do I save on one 18 kg spool?
At the regular price of this pallet, 2.50 EUR net per kg, one 18 kg spool costs 44.96 EUR net, about 44.96 EUR net (55.30 EUR gross). With this offer you pay 37.55 EUR net for it, about 37.55 EUR net (46.19 EUR gross), so 7.41 EUR net less on every spool. With 56 spools per pallet that is 414.92 EUR net, about 415 EUR, with 2 pallets about 830 EUR net and with 8 pallets about 3,319 EUR net. The whole batch of 40 pallets is 2240 spools, and the more pallets in one order, the smaller the share of the flat 69.77 EUR net transport charge within Poland in the price of each spool.
How much does pallet transport cost?
Pallet transport within Poland is a flat 69.77 EUR net per order (about 69.77 EUR net, 85.81 EUR gross), whatever the number of pallets. With 1 pallet that is about 0.07 EUR net per kg of wire, with 8 pallets less than 0.01 EUR. Transport to other EU countries is calculated at checkout, before you place the order.
Which shielding gas should I use with EMK 8-Ultra?
The Böhler data sheet allows C1, M1, M2 and M3 to EN ISO 14175 and gives weld metal properties for M21 and for pure CO2. M21 belongs to group M2 and is argon with 15 to 25% CO2, for example the common 82/18 mix. Under M21 the weld metal typically reaches Re 490 MPa and Rm 610 MPa, under CO2 480 MPa and 580 MPa, with 115 J at -50 °C in both cases.
Is EMK 8-Ultra suitable for robotic welding?
Yes, Böhler designs the Ultra series for manual, mechanised and fully automated welding. According to the manufacturer, the copper surface technology prevents clogging and flaking of the coating, and the chemistry gives a stable arc and fewer silicate islands on the weld face. For a robot line, one pallet means 56 identical 18 kg spools in a single delivery.

