E 7016–A1–H8
1181nc ama 1181nc

Welding electrode for creep resistant steels

AMA 1181NC

AWS/ASME SFA – 5.5: E 7016–A1–H4
DIN 8575 : E Mo B 20+
EN 1599 : E Mo B 4 2 H5

Application/properties:

Basic electrode is suitable for boiler tanks subjected to operating temperature up to 500°C. Its weld metal contains Molybdenum has a good mechanical properties.

Weld metal analysis in % (typical values):

C Mn Si Mo S P
0.08 0.9 Max 0.4 0.5 <0.02 <0.02

Mechanical Properties of all-weld metal:

(single values are typical values)

Tensile Strength
( N/mm )
Yield Strength
( N/mm )
Elongation
5*d(%)
Impact energy (J)
ISO - V
20°C       -20°C+
>510 > 390 25 120         60

Welding Parameters
Diameter (mm) Length (mm) Amperage (A)
2.5 350 60 – 90
3.25 350 - 450 90 – 140
4.0 350 - 450 140 – 190
5.0 450 190 – 250

Materials:

DIN Standard St 37-3 to St 52-3; St 37-2 to St 60-2; ST 35.8 to St 45.8; StE 320.7 to StE 415.7; StE 255 to StE 500; 17 Mn 4; 19Mn 5; 15Mo3; TStE 255 to TStE 500.
EN Standard S355J2G3; E295; E335; P255G1TH; L320 to L415NB; L320MB to L415MBM; S255N to S500N; P295GH; P310GH; 16Mo3; 15NiCuMoNb5, 20MnMoNi4-5; 17MnMoV6-4; S255NH to S500NH; S255NL to S500NL.
ASTM Standard A204 Gr.A, B, C; A217 Gr.WC1; A213 Gr.T2; A355 Gr.P1; A182M Gr.F1; A204M Gr.A, B, C; A250 Gr.T1 APl Spec. 5 L: X 52, X 56, X 60.

Rebaking:

required at 300°C to 350°C for 2 hours.