IMT 307 Si

EN- ISO 14343-A: G 18 8 Mn
AWS A 5.9 – 93: ER307 Si
Werkstoff Nr – 1.4370

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Wires and rods for semi-automatic welding and hardfacing in the gas mixture shielding Ar + CO2 (MAG) and argon Ar (TIG). An austenitic-ferritic weld deposit is obtained, which has a high resistance to hot cracking, primarily for joining opposite stainless steels, e.g. with non-alloy steels (low- and high-carbon), low-alloy steels or for joining ferritic steels, ferritic-martensitic steels, ferritic-austenitic steels, tool steels, spring steels, high-manganese (13 – 14% Mn) steels resistant to abrasion, heat-resistant, etc. Also used for buffer layers before hardfacing with hard alloys.

Chemical composition [%] Mechanical properties   MIG welding positions   TIG welding positions MIG welding current TIG welding current
C = 0,20
Si = 0,65 – 1,00
Mn = 4,50 – 7,50
Cr = 17,00 – 20,00
Ni = 7,00 – 10,00
PROTECTIVE GAS: M1
Re [MPa]: > 350
Rm [MPa]: > 500
A5 [%]: > 25
KV [J]: > 120 (+20˚C)
pozycje-spawania bez-nazwy-2 = + = –
Dimensions [ø mm] *
MIG welding wires: 0,8 1,0 1,2 1,6 TIG welding rods: 0,8 1,0 1,2  1,6 2,0 2,4 3,2 4,0 5,0

*Other dimensions available upon request. A list of authorizations.

IMT2