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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The company «Electrovek-steel» offers its customers an unlimited choice of the welding wire of the highest quality at a competitive price. If you are not sure, offers experienced managers who are always connected and ready to provide advice. Having made an order with us, you will receive certified products that comply with Russian and international standards of quality in the shortest possible time. If you value your time, contact today with our nearest office in Russia or in Ukraine, or make a reservation on the Internet.