AVESTA LDZ 2101-Chemical Composition
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September 2013 www.avestawelding.com Covered electrodes Standard designations EN ISO 3581-A E 23 7 N L R Characteristics Avesta LDX 2101-4D is a thin-coated, rutile- acid type electrodes specially developed for the welding of thin-walled pipes and sheets in the duplex stainless steel Outokumpu LDX 2101 ® , a “lean duplex” steel with excellent strength and medium corrosion resistance. Pipe welding can be performed in several different ways. One possi- bility is to start welding in the overhead position (1), followed by vertical-down on both sides from the 12 o’clock position (2 and 3). Another possibility is to start at the 7 o’clock posi- tion and weld vertical-up to the 11 o’clock position on both sides. This requires an inverter power source with a remote control. To bridge large root gaps DC– is often preferred. The weldability of duplex steels is excellent but the welding should be adapted to the base material, considering fluidity, joint design, heat input etc. For detailed welding recom- mendations, please see "How to weld duplex stainless steels" or contact voestalpine Böhler Welding. Welding data DC+ or AC Diam, mm Current, A 1.60 15 – 35 2.00 25 – 50 2.50 30 – 80 Weld deposit data (max. welding current) Metal recovery approx. 110%. Typical analysis % (All weld metal) C Si Mn Cr Ni Mo N 0.03 0.9 0.6 23.5 7.4 0.4 0.16 Ferrite 45 FN WRC-92 Mechanical properties Typical values (IIW) Min. values EN ISO 3581 Yield strength R p0.2 640 N/mm 2 – Tensile strength R m 800 N/mm 2 – Elongation A 5 25 % – Impact toughness KV +20°C 45 J – 40°C 28 J Hardness approx. 260 Brinell Interpass temperature: Max. 150°C. Heat input: 0.5 – 2.0 kJ/mm. Heat treatment: Generally none (in special cases quench annealing at 1020 – 1080°C). Structure: Duplex (austenite with 30 – 50% ferrite). Scaling temperature: Approx. 850°C (air). Corrosion resistance: Good resistance to general corrosion. Better resistance to pitting, crevice corrosion and stress corrosion crack- ing than 1.4301/AISI 304. Welding positions Avesta LDX 2101-4D For welding steels such as Outokumpu EN ASTM BS NF SS LDX 2101 ® 1.4162 S32101 – – – Ø 1.6–2.5
description
electrode
Transcript of AVESTA LDZ 2101-Chemical Composition
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September 2013 www.avestawelding.com
Covered electrodes
Standard designationsEN ISO 3581-A E 23 7 N L R
CharacteristicsAvesta LDX 2101-4D is a thin-coated, rutile-acid type electrodes specially developed for the welding of thin-walled pipes and sheets in the duplex stainless steel Outokumpu LDX 2101, a lean duplex steel with excellent strength and medium corrosion resistance. Pipe welding can be performed in several different ways. One possi- bility is to start welding in the overhead position (1), followed by vertical-down on both sides from the 12 oclock position (2 and 3). Another possibility is to start at the 7 oclock posi-tion and weld vertical-up to the 11 oclock position on both sides. This requires an inverter power source with a remote control. To bridge large root gaps DC is often preferred. The weldability of duplex steels is excellent but the welding should be adapted to the base material, considering fluidity, joint design, heat input etc. For detailed welding recom-mendations, please see "How to weld duplex stainless steels" or contact voestalpine Bhler Welding.
Welding dataDC+ or AC Diam, mm Current, A
1.60 15 352.00 25 502.50 30 80
Weld deposit data (max. welding current)Metal recovery approx. 110%.
Typical analysis % (All weld metal)
C Si Mn Cr Ni Mo N0.03 0.9 0.6 23.5 7.4 0.4 0.16
Ferrite 45 FN WRC-92
Mechanicalproperties
Typicalvalues (IIW)
Min. valuesEN ISO 3581
Yield strength Rp0.2 640 N/mm2 Tensile strength Rm 800 N/mm2 Elongation A5 25 % Impact toughness KV +20C 45 J 40C 28 JHardness approx. 260 Brinell
Interpass temperature: Max. 150C.
Heat input: 0.5 2.0 kJ/mm.
Heat treatment: Generally none (in specialcases quench annealing at 1020 1080C).
Structure: Duplex (austenite with 30 50% ferrite).
Scaling temperature: Approx. 850C (air).
Corrosion resistance: Good resistance togeneral corrosion. Better resistance to pitting, crevice corrosion and stress corrosion crack-ing than 1.4301/AISI 304.
Welding positions
Avesta LDX 2101-4DFor welding steels such asOutokumpu EN ASTM BS NF SS
LDX 2101 1.4162 S32101
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