ciencia del metales

1. Thermanit MTS 3
GTAW rod / wire
Classifications EN 12070 AWS A 5.28 Mat. No.
W CrMo91 ER90S-B9 1.4903
Characteristics High temperature resistant, resistant to scaling up to 600 °C
and field of use (1112 °F). Suited for joining and surfacing applications with
quenched and tempered 9 % Cr steels, particularly for
matching high temperature resistant parent metal T91 / P91
according to ASTM.
Marks W CrMo91 / ER90S-B9
(Rods only)
Materials X10CrMoVNb9-1 (1.4903);
ASTM A199 Gr. T91; A355 Gr. P91(T91); A213/213M Gr. T91
Typical analysis C Si Mn Cr Mo Ni Nb V
of welding rod in % 0.1 0.3 0.5 9.0 1.0 0.7 0.06 0.2
Creep and stress According to matching high temperature resistant parent metal
rupture properties
Mechanical proper- Heat- Yield strength Tensile Elongation Impact values
ties of the weld treatment 0.2% strength (L0=5d0) in J CVN
N/mm2 N/mm2 %
metal according
to EN 1597-1 760 °C / 2 h 530 620 17 50
(min. values at RT)
Structure Martensite, suitable for quenching and tempering
Welding instruction
Materials Preheating / Cool down PWHT
Interpass temperature before PWHT
Matching steels/ 200 - 250 °C (392-482 °F) / 100 °C 760 °C (1400 °F) –
cast steel grades 200 - 300 °C (392-572 °F) ( 212 °F) at least 2 h / air
Polarity = –
Shielding gas (EN 439) I1
Approvals TÜV (Certificate No. 6166) Controlas
Packaging and Diam. x Length (mm) kg / pack
weights 2.0 x 1000 10.0
2.4 x 1000 10.0
3.2 x 1000 10.0
154 Böhler Thyssen Schweisstechnik Deutschland GmbH – 09_2005