TSN - 6L
WELDING ELECTRODES TSN - 6L (diameter 4; 5 mm)
CLASSIFICATION: E-08H17N8S6G according to GOST 10051-75
LEGEND:E-08H17N8S6G -TSN-6L-Ø-ND
E300 / 33-2-B40
TECHNICAL REQUIREMENTS:GOST 9466-75, GOST 10051, TU BY 100034500.06-2016
COATING:main
deposition rate - 9-11,0 g / Ah
Electrode consumption per 1 kg of deposited metal -1.5 kg
PURPOSE:
For overlaying for overlaying the sealing surfaces of valve parts of boilers operating at a temperature and pressure to 570S to 7800 MPa. Surfacing in the lower position at a constant current of opposite polarity.
TYPICAL deposit hardness
|
Type of heat treatment after welding |
hardness HRC |
|
Without heat treatment (baseline) |
- |
|
Accommodation 725 ° C, 1h sustained-cooling to 200 ° C |
31 |
Chemical composition of welded metal,%
|
C |
Mn |
Si |
Ni |
Cr |
S |
P |
|
0,05-0.12 |
1,0-2.0 |
4,8-6,4 |
7.0-9.0 |
15,0-18,4 |
<= 0.025 |
<= 0.030 |
Geometric size and amperage during surfacing
|
Diameter, mm |
Current A |
Average number of electrodes in 1 kg pcs. |
|
4.0 |
110 - 150 |
21 |
|
5.0 |
180 - 200 |
12 |
SPECIAL FEATURES
Electrodes ZN-6L provide a weld metal that is resistant to corrosion and erosion in the environment of water and steam, and is resistant to galling.
MELTING PROCESS FEATURES
Surfacing produce preheater to a temperature of 300-400 ° C. Surfacing of small-sized products may be unheated. The heat treatment of large-size products is carried out directly after deposition. Mandatory calcination process before welding: 120-150 ° C; 1 h.
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= / + / |
Аrc welding rods in vatra.by.