UP-101 Spezial (S3Si)
SAW (submerged arc welding) wires for mild and low alloyed steels

Classification DIN EN ISO

14171-A S3Si

Material No.


Classification AWS

A5.17 EH12K, A5.23 EH12K


TÜV 03275, CE, DNV

Characteristics and application

Submerged arc welding wire for fine grain structural steels. Typical applications include offshore construction.

Base materials

For CMn and mild steels with yield strength up to ~460MPa (65ksi).
S355J0, S355J2, S355N-S460N, S355NL-S460NL, S355M-S460M, S355ML-S460ML, S460Q, S460QL, P355GH, P355N-P460N, P355NL2-P460NL2, P355M-P460M, P355ML2-P460ML2, P355Q-P460Q, Pipeline steels L210-450, Shipbuilding grades AH40-FH40
ASTM: A36, A106 grades A/B/C, A139, A210 grades A1/C, A216 grades WCA/WCB/WCC, A234 grade WPB, A266 grades 1/2/4, A283 grades A/B/C/D, A285 grades A/B/C, A299 grades A/B, A515 grades 60/65/70, A516grades 55-70, A656 grade 50/60
API: 5L grades X42-X65

Typical analysis in %

C: 0,11
Si: 0,30
Mn: 1,72

Typical heat treatment

Welding procedure (including preheat temperature, interpass temperature and PWHT) will be dependent on the base material being welded, including its thickness, and any applicable design codes.

Other products

SAW: UP-100 Mo (S2Mo), UP-101 Mo (S3Mo)
MIg/GMAW: ED-SG 3, ED-A 31
Gas welding: U 47 Mo (GI V)