AWS A5.9: ER310 is a submerged arc welding wire used for joining heat resistant fully austenitic steels type 25Cr/20Ni. Service temperature up to 1100°C in air and up to 1050°C in oxidizing sulphurous atmospheres and in reducing sulphurous atmospheres up to 650°C. Service temperature between +650 and +900 °C should be avoided due to the risk of embrittlement.

Main Application

Chemical Composition (%)

Welding Positions:

Diameter

Smooth finish free from surface defects and foreign matter.

Base Materials

1.6 – 3.2 mm; sizes and tolerances acc. to ISO 544 and AWS A5.9.

Classification:
EN ISO 14343-A: S 25 20
SFA 5.9 / AWS A5.9: ER310

Wire Electrode Surface

Package Forms

Austenitic steels:
1.4841/ X15CrNiSi25-20, 1.4845/ X12CrNi25-21, 1.4828/ X15CrNiSi20-12, 1.4840 /G-X15CrNi25-20, 1.4846/ G-X40CrNi25-21, 1.4826/ G-X40CrNiSi22-9

Ferritic-perlitic steels:
1.4713/ X10 CrAl7, 1.4724/ X10CrAl13, 1.4742/ X10CrAl18, 1.4762/ X10CrAl25, 1.4710/ G-X30CrSi6, 1.4740/ G-X40CrSi17
AISI 305, 310, 314; ASTM A297 HF; A297 HJ

Suitable fluxes: EN 760: SA AF 2 DC, WP 380

Flux type suitability is strongly dependent on its application. In combination with the wire electrode the most suitable flux should match the requirements of the plate material as closely as possible under the existing welding conditions. Further information can be obtained from the technical flux data sheets.

Coils, spools, drums and spiders as standard package forms for SAW-wire electrodes, different package forms on request.