1.4828, er309Lsi stainless welding wire
Welding Wire corrosion-resistant chromium-nickel marks ER 309 (St-07Kh25N13) is designed for semi-automatic welding of dissimilar steels (stainless c low-alloy and non-alloy steel), as well as for welding of austenitic stainless steels. The wire contains in its composition: 13% Ni, 24% Cr, and 0.07% carbon. Welding takes place in argon at a constant DC current. This wire is used in mechanical engineering, chemical, petroleum and food industries. Type: ER 309 / W December 23 L Si / EN 12 072 / AWS A5.9. The analog wire is Saint-07Kh25N13.
The chemical composition of ER 309:
Cr — 24,0
Mn — 1,7
Si — 0,8
Ni — 13,0
Tolerances and wire diameters meets the following standards:
|The nominal diameter of the wire||Maximum deviation of the wire intended|
|4; 5; 6||-0.12, -0.16|
|2.5; 3.0||-0.09, -0.12|
Tensile strength alloy and high-wire conforms.
|The wire diameter in mm||Tensile strength of the wire, in MPa (kgf / mm2), designed|
|2.0||686−980 (70−100) 784−1176 (80−120)|
|St. 2.0||637−931 (65−95) 686−1029 (70−105)|
|1.6||686−980 (70−100) 882−1274 (90−130)|
Tensile strength — 635MPa;
Yield — 475 MPa;
Elongation 32% KCV
— 60 ° C 150 J
-110 ° C 130 J
+ 20 ° C 150 J
Corrosion-resistant chromium-nickel welding wire brand ER 309 (St-07Kh25N13) is mainly used for semi-automatic welding. ER 309 wire feed into the weld pool is carried out semi-automatic welding. There are the following types of semi-automatic welding: monoblock with a separate mechanism, the feed wire and 2 block. Weld a wide variety of metal products of stainless steel where possible the use of carbon-metal electrodes, resulting in a significant decrease in the quality of the weld seam. Stainless steel wire 309 ER in demand for semi-automatic and TIG welding austenitic-manganese corrosion-resistant grades with high tensile strength, high carbon and dissimilar steels, working at t ° to 300 ° C.
ER 309 is made of heat-resistant high-alloy steel, resistant to corrosion and other. Aggressive factors of the environment, it has high strength. Doping of Mo, Si fine-grained eliminates corrosion and enables a high quality weld.
· Decreases in welding spatter;
· Improving the quality of the weld;
· Reduced consumption of tips;
· Increases the stability of the welding arc;
· Re-ignition — an instant;
· Low level of porosity.
Implemented plastic coils D-300, coils or rods. Each rod has a label, packed in plastic canisters, which weighs 5 kg. Three of the canister weighs 15 kilograms. The surface of the welding wire must be completely clean, should not have a scale, rust, grease, oil and others. Contamination.
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