B56 VAC

B56 VAC

Universal basic electrode E7018

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Product description

Low-hydrogen electrodes, vacuum-packed, can be used without steaming. Universal basic electrode (115% efficiency) offering high safety for all highly stressed or flanged assemblies.

Excellent strength down to -50°C, good resistance to cold cracking, easy-to-remove slag. For chassis, heavy structures, shipbuilding, pressure vessels.

Product application instructions

General-purpose structural steels:

NF A 35-501 : A33.A34-2.E24-2, 3. E28-2, 3. E30-2, 3. A50-2. A60-2,3. E36-2,3,4

DIN 17100 : St33-1.St37-2, 3.St44-2, 3. St50-2. St60-2. St70-2

ASTM: A283grB, C, D. A570gr30,33,40, 50. A709gr50

Steel tubes :

DIN 17172, 17175, 1629 : StE210-7, 240-7, 290-7, 320-7. St35. St35-4,8. St45. St45-4,8 St52. St52-4. St55-4

API SPEC 5L: X42, X46, X52, X60

Shipbuilding plates: Qualities A, B, C and D

Steels for boilers and pressure vessels:

NF A 36-205 : A37CP, AP. A42CP, AP..A48CP, AP. A52CP*, AP

DIN 17155 : HI, HII, HIII, 17Mn 4, 19Mn6

ASTM: A414grC, D, E, F. A442gr55, 60. A514grC, D, E, F. A515gr55, 60, 65, 70. A285grC. A516gr55 to 70

High-strength steels:

NF A 36-203 : E275D. E335D. E390D. A430D. E445D, 420T

NF A 36-204 : E420T. E460T

NF a 36-207 : A510 AP. E530 AP*. E550AP

DIN 17 102 : StE255, 315,355

Heat-resistant steels : Wst255 tot 355

Cold-resisting steels: TstE 255 tot 355

Vacuum-packed electrodes: no steaming necessary before use, unless electrodes have been exposed to moisture; dry for 2 hours at 300°C. Interpass temperature <250°C. = + ~ 70V

Classification

NFA 81-309 AWS A 5.1 EN ISO 2560-A DIN 8529
E 515/5 B 120 26 BH E 7018-1-H4 E 42 6 B 42 H5 E SY 42 76 Mn B

Chemical analysis (%)

C Mn If S P
<0.1 1.2 0.5 <0.025 <0.025

Mechanical characteristics

Rm (MPa) Rp0.2 (MPa) A5 (%) Av - ISO - V
510-610 >420 >22 +20°C>120; -20°C > 70; - 50°C > 40

Why choose this basic electrode?

Vacuum-packed 5 or 6Kg electrode for welding highly stressed steel assemblies (carbon and carbon manganese) (tensile strength up to 510 MPa).

It features excellent mechanical properties, particularly at low temperatures.