E 7018 –1–H4
1177f ama 1177f

Alkaline electrode for welding non-alloy steels

AMA 1177 F

AWS/ASME SFA – 5.1 : E 7018 –1–H4
DIN 8529 : E SY 42 76 Mn B
EN 499 : E 42 6 B 42 H 5

Applications and Properties:

This electrode is suitable for producing crack-free and tough welding joints and also for welding steels having a carbon content of up to 0.6%. The weld metal has very low hydrogen content and is resistant to ageing. Approved for rail joint welding; Good gap bridging properties. the electrode has a stable and concentrated arc is therefore well suited for positional welding. Welds are if X-ray quality. CTOD-tested for offshore application.

Weld Metal analysis in % (typical values):

C Mn Si S P
0.06 1.50 0.30 <0.02 <0.02

Mechanical Properties of all-weld metal:

(Single values are typical values)

Tensile Strength
( N/mm )
Yield Strength
( N/mm )
Elongation
A5 (%)
Impact Value (J)
ISO - V
20°C       -60°C+
Heat Treatment
500 – 640 > 420 > 22 180          70 AW
500 – 640 > 420 > 22 160          70 SR

AW= as – welding
SR= Stress – relieved 15 hrs./580 c

Welding Parameters
Diameter (mm) Length (mm) Amperage (A)
2.5 350 65 – 95
3.25 450 90 – 140
4.0 450 140 – 185
5.0 450 180 – 240
6.0 450 250 – 330

Materials:

DIN Standard St 37-2 to St 60-2; St 37-3 to St 52-3; St 37.0 to ST 52.0; St 37.4 to ST 52.4; StE 210.7 to StE 360,7; StE 210.7 TM toStE 360.7 TM; St 35.8 to St 45.8; HI; HII; 17mn 4; GL-A 36 to GL-E 36; StE 255 to StE 355; WStE 255 to WStE 355; TStE 255 to TStE 355; TT ST 35 N; GS-38; GS-52
EN Standard S235JR to E335; S235J2G3 to S355J2G3; P235T1 to P355T1; P235T2; P355T2; L210 to L360NB; L290MB to L360MB; P235G1TH; P255G1TH; P235GH; P265GH; P295GH; S355G1S to S355G3S; S255N - S355N; P255NH to P355NH; S255NL to S355NL.
ASTM Standard A27 a.A36 Gr.all; A214; A242 Gr. 1-5; A266 Gr. 1, 2, 4; A283 Gr. A, B, C, D; A285 Gr.A, B, C; A299 Gr.A, B; A328; A366; A515 Gr.60, 65, 70; A516 Gr.55; A570 Gr.30, 33, 36, 40, 45; A572 Gr.42, 50; A606 Gr.all; A607 Gr.45; A656 Gr.50, 60; A668 Gr.A, B; A907 Gr.30, 33, 36, 40; A841; A851 Gr.1, 2; A935 Gr.45; A936 Gr.50. APl 5 L Gr. B, X42-X56

Rebaking:

  • Rebaking: required on 300°C to 350°C for 2 hours

Approvals:

  • LR
  • GL
  • D.N.V
  • BV