ER307 is austenitic stainless steel type material with increased Mn content ensuring high crack resistance. High silicon content provides improved weld ow and weldability for smoother weld beads.
Suitable for welding of dissimilar steels, difcult to weld steels, armour plates, non-magnetic steels, work hardening austenitic manganese steels, stainless steels with max Cr content 18%.
Often used as a buffer layers on crack sensitive base metals and hardfacing applications, like crane wheel, rails, rail crossings surfacing, etc.
Сhemical composition, %
| C | Mn | Si | S | P | Ni | Cr | Mo | Cu |
| ≤0.10 | 5.00-8.00 | 0.65-1.00 | ≤0.03 | ≤0.03 | 8.00-10.00 | 17.00-20.00 | ≤0.50 | ≤0.50 |
Mechanical properties, all weld metal
|
Heat treatment |
Yield Strength, Rp0.2 (MPa) |
Tensile Strength, Rm (MPa) |
Elongation, A (%) |
Impact Energy ISO-V(J) +20°C / -120°C |
| AW | ≥400 | ≥580 | ≥40 | ≥100 / >35 |
Available size and packaging
|
Type |
Diameter, mm |
Box 5-10 kg |
D100 1 kg |
D200 5 kg |
D300 15 kg |
BS300 15 kg |
K300 15 kg |
Coil 25-40 kg |
Drum |
| TIG | 1.00 - 5.00 | x | |||||||
| MIG | 0.60 - 2.00 | x | x | x | x | x | x | x |
Analogues
AWS A5.9: ER307; EN 12072: 18 8 Mn; W.N.: 1.4370; GOST: Св-08Х20Н9Г7Т
