NT® wire electrodes for joining by submerged-arc welding
| BRAND NT® | DIN 8557/8575 material no. AWS EN 756 | Standard analysis of welding electrode, % | Base metal B: structural steel, R: pipe steel, K: boiler steel, Fk: fine-grained structural steel, S: ship-building steel EN standards see pages 52-53 |
Applications and properties | |
| S 1 | S 1 1.0351 EL12 EL8 S1 |
C Si Mn |
0,08 0,1 0,5 |
B: St 34.2-St 46.2, St 37.3 - St 46.3 R: St 35.St 45, St 35.4 - St 45.4, St 35.8, St 45.8 K: H I - H III S: A - D |
Welding filler for universal application in combination with Mn up-alloying powders in naval and apparatus construction, as well as in the general structural field |
| S 2 | S 2 1.0494 EM12K EM12 S2 |
C Si Mn |
0,12 0,1 1,0 |
B: St 42.2-St 50.2, St 42.3-St 52.3 R: St 45-St 52, St 45.4-St 52.4, St 45.8 K: H Il - HIV, 17 Mn 4, 19 Mn 5 S: A-E Fk: StE 255-StE 380 |
Welding filler for universal application in combination with neutral or basic powders in naval, boiler, and tank construction, as well as in the general structural field; use of metallurgically Mn-neutral powders or powders with slight Mn pick-up recommended |
| S 3 | S 3 1.0496 - S3 |
C Si Mn |
0,12 0,15 1,5 |
B: St 46.2-St 50.2, St 46.3 - St 52.3 R: St 45-St 52, St 45.4-St 52.4, St 55, St 55.4 K: H III, HIV, 17 Mn 4, 19 Mn 5 S: A-E Fk: StE 315-StE 420 |
Welding filler for universal application in combination with neutral or basic powders in naval, boiler, and tank construction, as well as in the general structural field; use of metallurgically Mn-neutral powders or powders with slight Mn pick-up recommended |
| S3 Ultra | S 3 Si - EH12K S3Si |
C Si Mn |
0,1 0,3 1,6 |
Fk: StE 460, WStE 460, TStE 460 StE 500, WStE 500, TStE 500 |
Special quality with very high level of purity; preferentially employed for offshore construction |
| S 4 | S 4 1.5086 EH14 S4 |
C Si Mn |
0,12 0,15 2,0 |
B: St 46.2-St 60.2, St 46.3 - St 52.3 R: St 52, St 55, St 52.4, St 55.4 K: H III, HIV, 17 Mn 4, 19 Mn 5 S: A-E Fk: StE 355-StE 460 |
Welding filler for use in combination with powders characterised by Mn burn-out, as a prerequisite for universal application of quality grade S 4 in naval, boiler, and tank construction, as well as in the general structural field |
| S 6 | S 6 1.5089 - - |
C Si Mn |
0,14 0,2 3,0 |
B: St 50.2, St 60.2, St 70.2 | Welding on structural steels with higher strength values; also suited for weld surfacing on rotor discs and similar components; Brinell hardness up to 225 HB |
| S 2 Mo | S 2 Mo (UP S 2 Mo) 1.5425 EA2 S2Mo |
C Si Mn Mo |
0,12 0,15 1,0 0,5 |
B: St 46.2, St 46.3, St 52.3, St 50.2 R: St 45-St 55, St 45.4-St 55.4 K: H III, H IV, 17 Mn 4, 19 Mn 5, 15 Mo 3 Fk: StE 31 5-StE 420, WStE 31 5 - WStE 420 as well as high-temperature-resistant structural steels with corresponding yield strength, or strength values < 530 N/mm2, such as BHW 25; WB 25 |
High-temperature-resistant welds in boiler, tank, and pipeline construction for use at operating temperatures up to 500 °C |
| S 3 Mo | S 3 Mo (UP S 3 Mo) 1.5426 EA4 S3Mo |
C Si Mn Mo |
0,12 0,15 1,5 0,5 |
B: St 50.2, St 52.3, St 60.2 R: St 52, St 55, St 52.4, St 55.4 K: 19 Mn 5, 15 Mo 3 Fk: StE 355-StE 460, WStE 355 - WStE 460 as well as high-temperature-resistant structural steels with corresponding yield strength, or strength values < 590 N/mm2, such as BHW 27; BHW 35; WB 30 |
High-temperature-resistant welds in boiler, tank, and pipeline construction for use at operating temperatures up to 500 °C |
| S4 Mo | S 4 Mo (UP S 4 Mo) 1.5427 EA3 S4Mo |
C Si Mn Mo |
0,12 0,15 2,0 0,5 |
B: St 60.2 R: St 55, St 55.4 K: 19 Mn 5, 15 Mo 3 Fk: StE 460, StE 500, WStE 460, WStE 500 as well as high-temperature-resistant structural steels with corresponding yield strength, or strength values < 650 N/mm2, such as BHW 27, BHW 35, WB 30, WB 35, WB 36 |
High-temperature-resistant welds in boiler, tank, and pipeline construction for use at operating temperatures up to 500 °C |
| S 1 | S 1 1.0351 EL12 EL8 S1 |
C Si Mn |
0,08 0,1 0,5 |
B: St 34.2-St 46.2, St 37.3 - St 46.3 R: St 35.St 45, St 35.4 - St 45.4, St 35.8, St 45.8 K: H I - H III S: A - D |
Welding filler for universal application in combination with Mn up-alloying powders in naval and apparatus construction, as well as in the general structural field |
| S 2 | S 2 1.0494 EM12K EM12 S2 |
C Si Mn |
0,12 0,1 1,0 |
B: St 42.2-St 50.2, St 42.3-St 52.3 R: St 45-St 52, St 45.4-St 52.4, St 45.8 K: H Il - HIV, 17 Mn 4, 19 Mn 5 S: A-E Fk: StE 255-StE 380 |
Welding filler for universal application in combination with neutral or basic powders in naval, boiler, and tank construction, as well as in the general structural field; use of metallurgically Mn-neutral powders or powders with slight Mn pick-up recommended |
| S 3 | S 3 1.0496 - S3 |
C Si Mn |
0,12 0,15 1,5 |
B: St 46.2-St 50.2, St 46.3 - St 52.3 R: St 45-St 52, St 45.4-St 52.4, St 55, St 55.4 K: H III, HIV, 17 Mn 4, 19 Mn 5 S: A-E Fk: StE 315-StE 420 |
Welding filler for universal application in combination with neutral or basic powders in naval, boiler, and tank construction, as well as in the general structural field; use of metallurgically Mn-neutral powders or powders with slight Mn pick-up recommended |
| S3 Ultra | S 3 Si - EH12K S3Si |
C Si Mn |
0,1 0,3 1,6 |
Fk: StE 460, WStE 460, TStE 460 StE 500, WStE 500, TStE 500 |
Special quality with very high level of purity; preferentially employed for offshore construction |
| S 4 | S 4 1.5086 EH14 S4 |
C Si Mn |
0,12 0,15 2,0 |
B: St 46.2-St 60.2, St 46.3 - St 52.3 R: St 52, St 55, St 52.4, St 55.4 K: H III, HIV, 17 Mn 4, 19 Mn 5 S: A-E Fk: StE 355-StE 460 |
Welding filler for use in combination with powders characterised by Mn burn-out, as a prerequisite for universal application of quality grade S 4 in naval, boiler, and tank construction, as well as in the general structural field |
| S 6 | S 6 1.5089 - - |
C Si Mn |
0,14 0,2 3,0 |
B: St 50.2, St 60.2, St 70.2 | Welding on structural steels with higher strength values; also suited for weld surfacing on rotor discs and similar components; Brinell hardness up to 225 HB |
| S 2 Mo | S 2 Mo (UP S 2 Mo) 1.5425 EA2 S2Mo |
C Si Mn Mo |
0,12 0,15 1,0 0,5 |
B: St 46.2, St 46.3, St 52.3, St 50.2 R: St 45-St 55, St 45.4-St 55.4 K: H III, H IV, 17 Mn 4, 19 Mn 5, 15 Mo 3 Fk: StE 31 5-StE 420, WStE 31 5 - WStE 420 as well as high-temperature-resistant structural steels with corresponding yield strength, or strength values < 530 N/mm2, such as BHW 25; WB 25 |
High-temperature-resistant welds in boiler, tank, and pipeline construction for use at operating temperatures up to 500 °C |
| S 3 Mo | S 3 Mo (UP S 3 Mo) 1.5426 EA4 S3Mo |
C Si Mn Mo |
0,12 0,15 1,5 0,5 |
B: St 50.2, St 52.3, St 60.2 R: St 52, St 55, St 52.4, St 55.4 K: 19 Mn 5, 15 Mo 3 Fk: StE 355-StE 460, WStE 355 - WStE 460 as well as high-temperature-resistant structural steels with corresponding yield strength, or strength values < 590 N/mm2, such as BHW 27; BHW 35; WB 30 |
High-temperature-resistant welds in boiler, tank, and pipeline construction for use at operating temperatures up to 500 °C |
| S4 Mo | S 4 Mo (UP S 4 Mo) 1.5427 EA3 S4Mo |
C Si Mn Mo |
0,12 0,15 2,0 0,5 |
B: St 60.2 R: St 55, St 55.4 K: 19 Mn 5, 15 Mo 3 Fk: StE 460, StE 500, WStE 460, WStE 500 as well as high-temperature-resistant structural steels with corresponding yield strength, or strength values < 650 N/mm2, such as BHW 27, BHW 35, WB 30, WB 35, WB 36 |
High-temperature-resistant welds in boiler, tank, and pipeline construction for use at operating temperatures up to 500 °C |
| S 2 CrMo | UP S 2 CrMo 1 1.7346 EB2 S CrMo 1 |
C Si Mn Cr Mo |
0,12 0,15 0,9 1,0 0,5 |
K: 13 CrMo 44 as well as tempering steels of similar alloy composition, such as 16 CrMo 4, 21 CrMo 3. 24 CrMo 5. 24 CrMo 54, 25 CrMo 4 |
High-temperature-resistant Cr-Mo steels in boiler, tank, and pipeline construction for use at operating temperatures up to 550 °C S 2 CrMo also for steels resistant to caustic cracking |
| S 4 CrMo | UP S 4 CrMo 1 1.7340 - - |
C Si Mn Cr Mo |
0,12 0,15 2,0 1,0 0,5 |
K: 13 CrMo 44 as well as tempering steels of similar alloy composition, such as 16 CrMo 4,21 CrMo 3,24 CrMo 5, 24 CrMo 54, 25 CrMo 4 |
High-temperature-resistant Cr-Mo steels in boiler, tank, and pipeline construction for use at operating temperatures up to 550 °C S 4 CrMo especially for single-pass welding |
| CrMo 2 - UP | UP 5 1 CrMo 2 1.7305 EB3 S CrMo 2 - |
C Si Mn Cr Mo |
0,12 0,15 0,5 2,6 1,0 |
K: 10 CrMo 9 10 as well as tempering steels of similar alloy composition, such as 24 CrMo 10, 16 CrMo 93,20 CrMo 9 |
High-temperature-resistant Cr-Mo steels, stable toward pressurised hydrogen, for use in boiler, tank, and pipeline construction at operating temperatures up to 600 °C |
| Ni 1 - UP | S 2 Ni 1 1.6225 ENi1 S2Ni1,5 |
C Si Mn Ni |
0,11 0,1 1,0 1,3 |
Fk: StE 355, StE 380, StE 420, StE 460 TStE 355, TStE 380, TStE 420, TStE 460 |
Weld metal (untreated or stress-free annealed), characterised by high ductility at low temperature and high ageing stability |
| Ni 2 - UP | S 2 Ni 2 1.6227 ENi2 S2Ni2 |
C Si Mn Ni |
0,11 0,15 1,0 2,2 |
Fk: StE 355-StE 500 TStE 355-TStE 500 as well as Ni steels ductile at low temperature, such as 14 Ni 6,10 Ni 14,16 Ni 14 |
Weld metal (untreated or stress-free annealed), characterised by excellent ductility at low temperature and high ageing stability; notch-impact transition temperature of -90 °C (ISO-V specimen) or -110 °C (DMV specimen) attainable under optimal conditions |
| Ni 2,5 - UP | - - ENNi2 S2Ni2 |
C Si Mn Ni |
0,1 0,15 1,0 2,5 |
||
| 2 NiMo 1 - UP | S2 NiMo 1 - EF1 S2Ni1 Mo |
C Si Mn Mo Ni |
0,12 0,15 1,0 0,5 0,9 |
Fk: StE 420-StE 500 WStE 42O - WStE 500 TStE 420 - TStE 500 as well as quenched and drawn Fk structural steels with yield strength of 440-590 N/mm2, such as 20 MnMoNi XABO 47-51, BHV 47-51, N-A-XTRA 55-60, Welmonil 43V, WB 35, WB 36 Fk: StE 355, StE 380, StE 420, StE 460 TStE 355, TStE 380, TStE 420, TStE 460 |
Both weld fillers likewise suited for capping-pass welds and for joining welds, for instance, on boiler shells and bottoms with final normalising or repeated quenching and tempering; yield strength attained upon normalising or renewed quenching and tempering of weld metal: about 320 N/mm2 and about 430 N/mm2, respectively |
| 3 NiMo 1 - UP | S 3 NiMo 1 - EF3 SZ3Ni1Mo |
C Si Mn Mo Ni |
0,13 0,15 1,5 0,6 0,9 |
||
{mospagebreak title=Page 2}
NT® wire electrodes for joining by submerged-arc welding
| BRAND NT® | Material no. | Standard designation, as specified in DIN 8556 material no. AWS EN 12072 |
Weld filler standard analysis, % |
Base metal B: structural steel, R: pipe steel, K: boiler steel, Fk: fine-grained structural steel, S: shipbuilding steel EN standards see pages 52-53 |
Applications and properties | |
| 4502 - UP | 1.4502 | X8 CrTi 18 ER 430 (mod.) S 17 C |
C Mn Cr Ti |
0,07 0,5 17,7 + |
stainless ferritic Cr steels, steels or steel castings suited for welding | Weld surfacing on sealing surfaces of gas, water, and steam valves and fittings up to 450 °C; also stainless cladding of large valve bodies and drive shafts; weld metal resistant to sea water as well as scaling up to 900 °C; 4502 - UP - hardness 150-300 HB; 4115 - UP - hardness 250-400 HB |
| 4115 - UP | 1.4115 | X20 CrMo 17 1 - - |
C Mn Cr Mo |
0,2 0,9 17,5 1,1 |
stainless ferritic Cr steels, steels or steel castings suited for welding | |
| 4551 - UP | 1.4551 | X5 CrNiNb 19 9 ER 347 S 19 9 Nb |
C Cr Ni Nb |
0,04 19,5 9,5 + |
1.4543: X 5 CrNiNb 18 9 1.4550: X10 CrNiNb 18 9 1.4541: X10 CrNiTi 18 9 1.4878: X12 CrNiTi 18 9 and corresponding cast steel |
For apparatus and tank construction in the chemical industry, in the textile and cellulose industries, in dye houses, etc., also for weld surfacing of sealing surfaces on valves and fittings exposed to acids, as well as those for gas, water, and steam |
| 4316 - UP | 1.4316 | X2 CrNi 19 9 ER 308 L S 19 9 L |
C Cr Ni |
< 0,03 20,0 9,5 |
1.4306: X2 CrNi 18 9 and corresponding cast steel | For apparatus and tank construction; for very-low-carbon, chemically resistant Cr-Ni steels; weld metal characterised by especially high resistance to intergranular corrosion |
| 4576 - UP | 1.4576 | X5 CrNiMoNb 19 12 ER 318 5 19 123 Nb |
C Cr Ni Mo Nb |
0,04 19,6 11,4 2,8 + |
1.4580: X10 CrNiMoNb 18 10 1.4571: X10 CrNiMoTi 18 10 1.4583: X10 CrNiMoNb 18 12 1.4573: X10 CrNiMoTi 18 12 and corresponding cast steel |
For plant components exposed to highly aggressive environments in the chemical industry, in cellulose and paper manufacturing, as well as in dye houses, etc., also for weld surfacing of sealing surfaces on valves and fittings exposed to acids |
| 4430 - UP | 1.4430 | X2 CrNiMo 19 12 ER 316 L 5 19 12 3 L |
C Cr Ni Mo |
< 0,02 18,6 11,3 2,8 |
1.4404: X2 CrNiMo 18 10 1.4435: X2 CrNiMo 18 12 and corresponding cast steel |
For plant components subject to severe chemical attack, especially for very-low-carbon, chemically resistant Cr-Ni-Mo steels; weld metal characterised by especially high resistance to intergranular corrosion |
| 4462 - UP | 1.4462 | - ER 2209 5 22 9 3 N L |
C Cr Ni Mo N |
< 0,02 22,5 9,3 3,3 0,12 |
1.4462: X2 CrNiMoN 22 5 as well as ferritic-austenitic base metals of similar alloy composition and increased hardness |
For nitrogen-alloyed, ferritic-austenitic steels (DUPLEX steels) with high strength values and excellent corrosion resistance in chemical apparatus construction DiesIstEinAbstandhalter |
| 4820 - UP | 1.4820 | X12 CrNi 25 4 - - |
C Cr Ni |
0,08 26,0 4,5 |
1.4821: X20 CrNiSi 25 4 and corresponding cast steel | Heat-resistant at operating temperatures up to 1100 °C; especially resistant to attack by sulphur-charged combustion gases of oxidising and reducing nature; ferritic-austenitic weld metal |
| 4829 - UP | 1.4829 | X12 CrNi 22 12 ER 309 - |
C Cr Ni |
0,12 22,4 10,6 |
1.4828: X15 CrNiSi 20 12 and corresponding cast steel | Heat-resistant at operating temperatures up to 1000 °C; austenitic weld metal |