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Classification:
EN ISO 14343 W 19 9 Nb Si
AWS A5.9 ER347Si
Description:
Cromatig 347Si is primarily intended for welding the Nb or Ti stabilised 18% Cr / 10% Ni austenitic
stainless steel grades 347 and 321. It is also suitable for the unstabilised grades of 304 and 304L. For
structural applications at temperatures above 400°C, grade 308H is recommended because of its
superior creep strength at elevated temperatures. The higher silicon content provides a more fluid
weld pool which may be preferred for certain welding applications.
Welding current:
DC-
Shielding gas:
I1, 99.99% Ar, 6-12 l/min
Stamping
Elga, AWS, Wst, EN, Batch
Wire composition, wt.%
Mechanical properties
Typical
Yield strength, Rp0.2%: 400 MPa
Tensile Strength, Rm: 620 MPa
Elongation, A5 35%
Impact energy, CV:
20°C
•
130 J
–196°C
•
40 J
Ferrite content:
FN 7
Product data:
1,6 x 1000 5 kg 98221016
2,0 x 1000 5 kg 98221020
2,4 x 1000 5 kg 98221024
3,2 x 1000 5 kg 98221032