Welding Electrodes

Electrodes with rutile-acid coating are used for perimetric horizontal welding, but are also suitable for position welding of stainless steel with DCEP (direct current electrode positive) polarity or with AC power supply. Certificates / Approvals: DB, DNV, TUV, Lloyd’s.

Welding positions for electrodes:

Covered electrodes 308L/MVR AC/DC

                         

Grade	308L/MVR AC/DC
Standard designations	acc.to EN 1600								acc.to AWS A5.4/A5.11
	E 19 9 L R								E308L–17
Dimensions, mm (pack weight, kg)	1.60h250 (1.4) 2.00h300 (1.7) 2.50h350 (4.1) 3.25h350 (4.1) 4.00h450 (5.4) 5.00h450 (5.4)
Welding steel grades	designation po EN					designation acc.to ASTM					designation  GOST
	1.4301 1.4306 1.4307 1.4311 1.4541					304 304L 304L 304LN 321					08H18N10 03H18N11 03H18N11 – 08H18N10T
Chemical composition, %	C	Si		Mn		Cr		Ni		Ferrite  *
	0.02	0.8		1		20		10.5		10FN
Type of coating	Rutile-acid  (AC/DC)
Type of electrode acc. to EN 1600	Austenitic
Welding current	— Positive direct current (DC +) — Alternating current  (AC)
Weld metal mechanical properties	Rp0.2, MPa		Rm, MPa		A5, %		Impact  strength, KV, J				NV
							+20°S			–40°S
	440		580		38		60			55	200

Covered electrodes 316L/SKR AC/DC

                           

Grade	316L/SKR AC/DC
Standard designations	acc. to  EN 1600						po AWS A5.4/A5.11
	E 19 12 3 L R						E316L–17
Dimensions, mm (pack weight, kg)	1.60h250 (1.4) 2.00h300 (1.7) 2.50h350 (4.1) 3.25h350 (4.1) 4.00h450 (5.4) 5.00h450 (5.4)
Welding steel grades;	designation po EN				designation po ASTM					designation  GOST
	1.4436 1.4432 1.4571 1.4401 1.4404 1.4435 1.4406				316 316L 316Ti 316 316L 316L 316LN					06H17N13M2 06H17N14M3 08H17N13M2T 06H17N13M2 04H17N13M2 04H17N13M2 –
Chemical composition	C	Si		Mn		Cr		Ni	Mo			Ferrite*
	0.02	0.85		1.1		18.5		12	2.8			10 FN
Type of  coating	Rutile-acid  (AC/DC)
Type of electrode  acc. to EN 1600	Austenitic
Weld  metal mechanical properties	Rp0.2, MPa		Rm, MPa			A5, %		Impact strength KV, J				HB
								+20°S			-196°S
	360		570			35		120			–	210

Comments:
Electrodes of the following grades can be supplied

Type	Grade
Austenitic  Cr-Ni ;	308L/MVR basic, 308L/MVR–PW, 308L/MVR–VDX, 308/308H AC/DC, 308L AC/DC, 308L–LF
Austenitic Cr-Ni -Mo	316L/SKR basic, 316L/SKR–PW, 316L/SKR–VDX, 316/316H AC/DC, 316L AC/DC, 317L/SNR AC/DC, SLR AC/DC
Fully austenitic	254 SFER rutile, SKR–NF rutile, 904L AC/DC, 904L–PW AC/DC, 383 AC/DC, P12–R basic, P625 basic, P16 basic, P54 basic
Heat resisting	309 AC/DC, 310 AC/DC, 253 MA AC/DC, 253 MA–NF AC/DC, 353 MA basic
Special  types	307 AC/DC, 309L basic, P5 basic,  P5–PW, P5–VDX,P7 AC/DC, P10 basic, P690

Typical ferrite content, calculated in weld metal using Schaeffler Delong method:

• Rp0.2 – yield point, MPa;
• Rm – tensile strength, MPa;
• A5 - – stretch ratio,%;
• NV – Brinell hardness.