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Mild & carbon steels

FERVEO STL 420B4 HD AC

covered electrode · stick electrodebasic coatingCatalogue only
also as: covered electrode · stick electrodecovered electrode · stick electrode
AWS class
E 7016-1 H4
EN ISO class
E 42 4 B 32 H5
Tensile strength (Rm)
500–610 MPa
Recovery
125 %

Classification

AWS classE 7016-1 H4
EN ISO classE 42 4 B 32 H5

Purpose

  • Low-hydrogen basic electrode, same step as FERVEO STL 420B4 HD P2 but also usable on AC (AWS E 7016-1 H4, EN ISO E 42 4 B 32 H5).

Why it works

A basic-coating adjustment keeps the arc stable on AC as well as DC — relevant on installations without DC welding equipment available.

Fields of application

  • General carbon-steel fabrication with AC welding equipment.

Chemical composition

ElementTypical, %
C0.07
Mn1
Si0.6

Mechanical properties

Tensile strength (Rm)500–610 MPa
Yield strength (Rp0.2)420 MPa
Elongation (A5)24 %
Impact energy (KV)47 J (−46 °C)

Process

PolarityDC+/AC
PositionsPAflatPBhorizontal-verticalPChorizontalPDhorizontal-overheadPEoverheadPFvertical-up
Re-drying300–350 °C / ≥2 h
Recovery125 %

Sizes and part numbers

ØLengthCurrentRequest
2.5 mm350 mm80–100 A
3.2 mm350 mm100–140 A
4 mm350 mm130–190 A
4 mm450 mm130–190 A

Cross-reference

Replaces FOX EV PIPE (Böhler)Direct replacement
Replaces OK 53.70 (ESAB)Direct replacement
Replaces LB-52 (Kobelco)Direct replacement
Replaces LB-52U (Kobelco)Direct replacement
Replaces Conarc 51 (Lincoln)Direct replacement
Replaces Baso 100 (Lincoln)Direct replacement
Replaces ESB 40 (Magmaweld)Direct replacement
Replaces ESB 42 (Magmaweld)Direct replacement
Replaces ESB 44 (Magmaweld)Direct replacement
Replaces AS B-268 (Askaynak)Direct replacement
Replaces NIC 7016S (Nicrotec)Direct replacement
Replaces EXTRA (Oerlikon)Direct replacement
Replaces SPEZIAL (Oerlikon)Direct replacement
Replaces TENAX 56S (Oerlikon)Direct replacement
Replaces B7016Sp (Selectarc)Direct replacement
Replaces WA SPEEDARC 7016-E (Welding Alloys)Direct replacement

Equivalence refers to the classification (AWS / EN ISO), not to product identity. In applications with a qualified procedure (WPS), validate the substitution before use.

Base metals

S235JR-E295E335S235J2G3-S355J2G3C22C35P235T1-P355T1P235T2P355T2L210-L360L290MB-L320MBP235G1THP255G1THP235GH-P295GHS235JRS1S235J4SS315G1S-S355G3SS255N-S355NGE200-GE300API 5L: ABX42X46X52X56X60

Advantages

  • Usable on AC as well as DC, unlike FERVEO STL 420B4 HD P2 (DC only).

Limitations

  • Same strength and toughness step as FERVEO STL 420B4 HD P2 — choosing between the two comes down to the welding equipment available.

Notes