Welding products
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Stainless welding products SANDVIK SANDVIK SANDVIK SANDVIK SANDVIK SANDVIK SANDVIK SANDVIK SANDVIK SANDVIK SANDVIK SANDVIK SANDVIK SANDVIK SANDVIK SANDVIK SANDVIK SANDVIK SANDVIK SANDVIK SANDVIK SANDVIK SANDVIK SANDVIK SANDVIK SANDVIK SANDVIK SANDVIK SANDVIK SANDVIK SANDVIK SANDVIK SANDVIK

2 You benefit from our R&D Sandvik's leading metallurgy, inclusion and trace-element technology en able us to produce welding products with opti mum and consistent properties. We can produce mate rials, which meet the requirements of the most demanding standards and applications. Experienced technicians in our welding laboratories undertake continuous devel opment of welding products and processes so that our customers can achieve the best weld ing results and the highest productivity. A programme for every job Sandvik can offer welding products in the form of wire, strip and covered...

3 Index Page 4-7 Choice of welding consumables 8-15 Wire electrodes and filler wire/rods 16-19 Covered electrodes 20-22 Strip electrodes 23-24 Complementary products 25-26 Ferrite content diagrams

4 Choice of welding consumables Balanced composition The composition of the welding consumab le normally corresponds to that of the parent metal. For example, parent metal 304L (18% Cr, 8% Ni) is welded with a 308L filler metal (19% Cr, 9% Ni). In general, the contents of the main alloying elements – Cr, Ni and Mo – are high er in the welding con sum able than in the parent metal in order to compensate for segregation in the weld metal. Impurity levels, however, are lower in the consumable than in the parent metal in order to reduce the risk of hot cracking, and to obtain the best arc...

TIG rods are therefore made in both variants. The main reason for high silicon electrodes for plasma-arc welding is their greater availability. Submerged-arc welding The normal-silicon content version is required for submerged-arc welding. High silicon versions are not suitable because the silicon pick-up from the flux would result in too high silicon content in the deposit. Simplified stock holding For stock holding reasons, many fabricators use one consumable grade to weld several different parent metals. Molybdenum has been shown to give only positive effects, except in highly...

6 Recommended selection of welding consumables The tables below give typical selections of welding consumables and basic designations for wire electrodes and filler wire/rods. They do not indicate the Sialloyed variants used for MIG welding or the variants of covered electrodes or wire-flux combinations for submergedarc welding. For exact designations, please refer to the tables with chemical compositions in the various sections of this brochure. To address the welding job in question a number of factors have to be consider ed. The weld geometry and dilution, requirements for heat treatment...

8 A full product programme Our programme contains filler metals in standard and special stainless steels and alloys suitable for MIG, TIG, plasma-arc and sub merged -arc welding. For most standard grades there are variants with both normal and high silicon content to suit different welding methods. All grades have a well con trolled, low impurity level to reduce the risk of hot cracking. Please refer to "Choice of welding consumables" on page 4 for more details. We pay attention to the delivery form Wire for MIG, mechanised TIG and submerg ed-arc welding is delivered as standard on...

9 Basket spool, BS 300 Wire diameter 0.8, 1.0, 1.2, 1.6 mm. Wire weight 15 kg. Precision layer wound. Highly environmentally com - pat ible. Empty spools can be treated as metal scrap. Sanpac £ Wire diameter 0.8, 1.0, 1.2, 1.6 mm. Outside diameter of the drum 510 mm. Height of drum 450 or 820 mm. Wire weight approx. 150 or 300 kg. Plastic spool, S 100 £ Wire diameter max 1.0 mm. Wire weight 1 kg. Precision layer wound. Plastic spool, S 200 Wire diameter max 1.0 mm. Wire weight 5 kg. Normal wound. Delivery forms Rods Wire diameter 1.0, 1.2, 1.6, 2.0, 2.4, 3.2, 4.0, 5.0 mm. Length 1000 mm....

11 Properties and applications Sandvik Suitable Mechanical Applications Corrosion resistance AWS ER welding properties EN 12072 a methods b typical values at 20ºC 19.9.L MIG Rp0.2 390 MPa Joining of stainless Cr-Ni steels, stabilised or non- Good resistance to general and, owing to the 308L TIG Rm 600 MPa stabilised, e.g. 304, 304L, 321 and 347, for service low C content, intergranular corrosion. 19 9 L PAW A 34% temperatures up to 350°C. Also for stainless Cr SAW KV 135 J steels with max 19% Cr. Cryogenic applications down to -269°C, depending on welding process. 19.9.LSi MIG Rp0.2 390 MPa...

12 Properties and applications Sandvik Suitable Mechanical Applications Corrosion resistance AWS ER welding properties EN 12072 a methods b typical values at 20ºC 18.8.CMn MIG Rp0.2 460 MPa Joining of work-hardenable steels, armour plates, The corrosion resistance is similar to that of "307C" TIG Rm 650 MPa stainless austenitic Mn steels and free-machining the respective parent metal. 18 8 Mn PAW A 42% steels, e.g. 303. Also for stainless Cr steels with SAW KV 150 J max.18% Cr. Overlay welding of carbon and lowalloyed steels. 24.13.L MIG Rp0.2 400 MPa Joining of stainless Cr-Ni steels of...

13 Sandvik Suitable Mechanical Applications Corrosion resistance AWS ER welding properties EN 12072 a methods b typical values at 20ºC 29.8.2.L TIG Rp0.2 700 MPa Joining of superduplex stainless steel Sandvik Better resistance to intergranular corrosion, – PAW Rm 870 MPa SAF 2906 or other similar steels. pitting and stress corrosion cracking than – SAW A 25% 22.8.3.L. KV 180 J 22.12.HT MIG Rp0.2 400 MPa Joining of stainless Cr-Ni steel Sandvik 253MA or High oxidation resistance in air up to 1150°C. – TIG Rm 580 MPa other similar high-temperature steels. – PAW A 35% SAW KV 120 J 28.34.HT MIG...

14 Shielding the weld The primary tasks of a shielding gas are to protect the molten pool from the influence of the atmosphere, i.e. from oxidation and nitrogen absorption, and to stabilise the electric arc. The choice of gas can also influence the characteristics of the arc. In submerged-arc welding the shield is achieved by a flux, completely covering the consumable, the arc and the molten pool. The flux also stabilises the electric arc. We have a range of fluxes to suit differe nt applications. Shielding gases MIG welding Besides the development of welding machines, the use of shielding...