Hochl.Schweißdraht 1.4440 D:1,2mm

MAG wire electrode FORMAT 1.4440

Standard designation:
EN ISO 14343-A
AWS A 5.9 ER317L mod
Material no.: 1.4438

Type of current: = +
Shielding gas (EN 439): M12, M13

Specific analysis of the welding wire %:
C Si Mn Cr Mo Ni
0.03 0.4 1.8 18.5 3.5 14<

Due to the high Mo content, increased resistance to media containing CI+ and pitting

Properties and areas of application:
• Structure free of austenite/ferrite
• Non-rusting, IK-resistant (wet corrosion up to 400 °C)
• Not magnetizable
• Well suited for connections and surfacings on identical and similar austenitic non-stabilized and stabilized non-rusting and non-magnetizable CrNiMo(N) steels/cast steel grades

Base materials :
• TÜV-approved base materials
• X2CrNiMoN17-13-5 (1.4439)
• X2CrNiMo18-16-4 (1.4438)
• X2CrNiMoN17-13-3 (1.4429)
• X10CrNiMoNb18 -12 (1.4583)
• AISI 316Cb, 316LN, 317LN, 317L
• UNS S31726
Mechanical quality values of the weld metal according to EN 1597-1 (minimum values at RT):
Heat treatment: unannealed
0.2% yield strength (N/mm²): 320
1.0% Yield strength (N/mm²): 350
Tensile strength (N/mm²): 570
Elongation (Lo=5do)%: 34
Notched impact work ISO-V: 65

Welding instructions:
Base materials:
1) Same type/similar austenitic non-stabilized CrNiMo(N) steels/cast steel grades
2) Non-magnetic CrNiMo(N) steels/cast steel grades
Preheating:
Re 1) None.
On 2) None, keep intermediate layers/working temperature low
Heat treatment:
On 1) If necessary, solution annealing at 1050 °C
On 2) If necessary, stress relief annealing according to the base material, otherwise solution annealing at 1050 °C C

Other dimensions and forms of delivery available on request.