

Classification:

EN ISO 14343

AWS A5.9

W 19 9 Nb Si

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-

Mechanical properties

Shielding gas:

I1, 99.99% Ar, 6-12 l/min

Yield strength, Rp0.2%:

Tensile Strength, Rm:

Elongation, A5

Impact energy, CV:

Typical

Stamping

Elga, AWS, Wst, EN, Batch

Wire composition, wt.%





















Product data:



Ferrite content:

FN 7





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

195

400 MPa

620 MPa

35%

20°C • 130 J

–196°C • 40 J