Flux Cored Wires For Stainless Steel

Stainless Steel Welding Consumables IntroductionFlux-cored Wire

 

1.Welding Consumables Selection and Recommendation:

  Specification of stainless steel flux-cored wire arc welding according to AWS: It is based on welding wire types, composition, welding positions, and gas shield types. The information of the tensile strength is not shown on specification. The welding wire meets the specification of side expansion ≧ 0.38mm at -196℃ when required; the letter “J” in the latter specification plus. The following relevant classification and application

 

Classification

Welding Method

Gas Shield

Current

Welding Position

Feautres & Applications

EXXXTX-1

FCAW

100%CO2

DC(+)

EXXXT0-X

Flat & Horizontal welding

 

 

EXXXT1-X

All position

CO2  as gas shield for general welding materials

EXXXTX-3

FCAW

--

DC(+)

Self shielded materials are generally designed to T0 grade.

EXXXTX-4

FCAW

75~80%Ar+

20~25%CO2

DC(+)

Mixed gas shield possesses better welding control and weld balanced.

EXXXTX-G

FCAW

not specified

not specified

Special purpose design

RXXXT1-G

GTAW

not specified

not specified

All

Special purpose design

RXXXT1-5

GTAW

100%Ar

DC(-)

All

TIG flux-cored wire for pipeline bottom-welding, not recommended for surface welding  due to blowhole and slag risks.

ECXXX

FCAW

98%Ar+2%O2

DC(+)

not specified

Metal-cored wire possesses better deposition rate and lower depth penetration than solid wire.

ECXXX

GTAW

100%Ar

DC(-)

All

TIG metal-cored wire with no slag.

 

 

 

2.Welding Operation Points


(1)Storage Management

Related to the storage management refers to the instruction of carbon steel flux-cored wire.

 

(2)Welding Precaution


①The recommended length of the wire extension is in the range of 15~20 mm, the shorter may cause the 
high melting point substance undissolved up in the flux that generates wormholes matter on the surface of the weld. 

 


Use mixed gas shield is better operation control and weldmetal composition balanced than CO2 when it reaches the critical condition the arc spray formation. Besides, the matchup of voltage and current, the length of wire extension no less than 15mm is to avoid wormholes on the surface of the weld. 

 

③In addition to the guidelines of TIG rod welding when the bottom welding with the TIG flux-cored rod for full penetration welding, the matter of the slag on the top of the molten iron involved into the weldpool should be a subject in consideration.

 

④The tension of the stainless steel wire is larger than the carbon steel wire, and therefore, the conduit of the welding gun should not be over-bending while wire feeding. The inner conduit may not be shared with carbon steel wire in order to avoid contamination of the powder from the wire surface or drawing oil.

 

⑤It requires a low heat input and the welding swing width≦25mm when use flux-cored wire for the bottom-welding, in order to avoid excessive dilution rate resulting in the lower alloy content of the weld, the weld overlapping width between the welds recommended at 1/2 weld width from each. 

 

The rest, refer to the precautions of stainless steel covered electrode.

 

View:

SFC-307

不銹鋼FCAW銲接
AWS A5.22 E307T1-1/-4
JIS Z3323 TS307-FC1
EN ISO 17633-A T18 9 Mn Mo P C1/M21 2
GB --

SFC-308H

不銹鋼FCAW銲接
AWS A5.22 E308HT1-1/-4
JIS Z3323 TS308H-FC1
EN ISO 17633-A T 19 9 P C1/M21 2
GB T17853 E308HT1-1

SFC-312

不銹鋼FCW銲接
AWS A5.22 E312T1-1/-4
JIS Z3323 TS312-FC1
EN ISO 17633-A T 29 9 P C1/M21 2
GB T17853 E312T1-1

SFC-312M

不銹鋼FCW銲接
AWS --
JIS --
EN --
GB --

SFC-316H

不銹鋼FCAW銲接
AWS A5.22 E316HT1-1/-4
JIS Z3323 TS316H-FC1
EN --
GB T17853 E316HT1-1

SFC-318

不銹鋼FCAW銲接
AWS A5.22 EGT1-1/-4
JIS --
EN ISO 17633-A T 19 12 3 Nb P C1/M21 2
GB --

SFC-347L

不銹鋼FCAW銲接
AWS A5.22 E347T1-1/-4
JIS Z3323 TS347-FC1
EN ISO 17633-A T 19 9 Nb P C1/M21 2
GB T17853 E347T1-1

SFC-347H

不銹鋼FCAW銲接
AWS A5.22 E347HT1-1/-4
JIS Z3323 TS347H-FC1
EN ISO 17633-A T 19 9 Nb P C1/M21 2
GB T17853 E347HT1-1

SFC-410

不銹鋼FCAW銲接
AWS A5.22 E410T1-1/-4
JIS Z3323 TS410-FC1
EN ISO 17633-A T 13 P C1/M21 2
GB T17853 E410T1-1

SFC-410NiMo

不銹鋼FCAW銲接
AWS A5.22 E410NiMoT1-1/-4
JIS Z3323 TS410NiMo-FC1
EN ISO 17633-A T 13 4 P C1/M21 2
GB T17853 E410NiMoT1-1

SFC-2594

不銹鋼FCAW銲接
AWS A5.22 E2594T1-1/-4
JIS --
EN ISO 17633-A T 25 9 4 N L P C1/M21 2
GB --

SFC-410NM

不銹鋼FCAW銲接
AWS A5.22 EGT1-1/-4
JIS --
EN --
GB --

SFC-308L

不銹鋼FCAW銲接
AWS A5.22 E308LT1-1/-4
JIS Z3323 TS308L-FC1
EN ISO 17633-A T 19 9 L P C1/M21 2
GB T17853 E308LT1-1

SFC-309MoL

不銹鋼FCAW銲接
AWS A5.22 E309LMoT1-1/-4
JIS Z3323 TS309LMo-FC1
EN ISO 17633-A T 23 12 2 L P C1/M21 2
GB T17853 E309LMoT1-1

SFC-316L

不銹鋼FCAW銲接
AWS A5.22 E316LT1-1/-4
JIS Z3323 TS316L-FC1
EN ISO 17633-A T 19 12 3 L P C1/M21 2
GB T17853 E316LT1-1

SFC-317L

不銹鋼FCAW銲接
AWS A5.22 E317LT1-1/-4
JIS Z3323 TS317L-FC1
EN ISO 17633-A T 19 13 4 L P C1/M21 2
GB T17853 E317LT1-1

SFC-309L

不銹鋼FCAW銲接
AWS A5.22 E309LT1-1/-4
JIS Z3323 TS309L-FC1
EN ISO 17633-A T 23 12 L P C1/M21 2
GB T17853 E309LT1-1

SFC-2209

不銹鋼FCAW銲接
AWS A5.22 E2209T1-1/-4
JIS Z3323 TS2209-FC1
EN ISO 17633-A T 22 9 3 N L P C1/M21 2
GB T17853 E2209T1-1

SFC-409Ti

不銹鋼FCAW銲接
AWS A5.22 EC409T1-1/-4
JIS Z3323 TS409-FCO
EN ISO 17633-A T 13 Ti M M21 2
GB --

SFC-409Cb

不銹鋼FCAW銲接
AWS A5.22 EC409NbT1-1/-4
JIS Z3323 TS409Nb-FCO
EN --
GB --

SFC-439Ti

不銹鋼FCAW銲接
AWS A5.22 EC439T1-1/-4
JIS --
EN --
GB --