UTP A 68 stainless steels
Classifications TIG rod
EN ISO 14343-A AWS A5.9 Material-No.
W 19 9 Nb Si ER 347 (Si) 1.4551
Characteristics and field of use
UTP A 68 is suitable for joining and surfacing in chem. apparatus and vessel construction
for working temperatures of – 196 °C up to 400 °C.
Base materials
1.4550 X6 CrNiNb 18-10
1.4541 X6CrNiTi 18-10
1.4552 G-X5 CrNiNb 18-10
1.4311 X2 CrNiN 18-10
1.4306 X2 CrNi 19-11
AlSi 347, 321, 302, 304, 3046, 304LN
ASTM A 296 Gr. CF 8 C, A 157 Gr. C 9
Typical analysis in %
C Si Mn Cr Ni Nb Fe
0,05 0,4 1,5 19,5 9,5 0,55 balance
Mechanical properties of the weld metal
Yield strength RP0,2 Tensile strength Rm Elongation A Impact strength KV
MPa MPa % J [RT]
420 600 30 100
Welding instruction
Degrease and clean weld area thoroughly (metallic bright). Preheating and post heat treatment
are usually not necessary.
Approvals
TüV (No. 04866)
Form of delivery and recommended welding parameters
Rod diameter x length (mm) Current type Shielding gas (EN ISO 14175)
1,0 x 1000* DC (–) I 1
1,6 x 1000 DC (–) I 1
2,0 x 1000 DC (–) I 1
2,4 x 1000 DC (–) I 1
3,2 x 1000* DC (–) I 1