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SM70 Mild Steel

Flux Cored Wire

SF-71

AWS A5.20 / ASME SFA5.20 E71T-1

JIS Z3313 YFW-C50DR

  Applications

All position welding of building, shipbuilding, bridges, machinery and vehicles.

  Usage Specifications

SF-71 is a titania type of flux cored wire foll all position welding with CO2. Spatter loss is low & bead appearance is good. The arc is soft with good stability & the slag covering is uniform with good removal quality’s. 

  Welding Position                                                         Welding Current                                   Shielding Gas

Welding Position Guide

DC+

Use 100% C02 Gas Only

Proper preheating (50~150’C) and interpass temperature must be used in order to release hydrogen which may cause cracking in the weld metal when welding medium to heavy plates.

One-sided welding defects such as hot cracking may occur if the welding speed is to high.

  Typical Chemical Composition Of All-Weld Metal (%)

C

Si

Mn

P

S

0.04

0.49

1.29

0.010

0.009

  Typical Mechanical Properties of All-Weld Metal

Y.S N/mm sq

T.S N/mm sq

E.L ( % )

Temp 'C

Impact Test-J cvn

548

582

28

0

86

  Available Size, Code, Recommended Current

Code

Size

Current Range

Pack Size

SF7112

1.2mm

120 ~ 300 amps

15 Kg

SF7116

1.6mm

180 ~ 450 amps

15 Kg

Supercored 71

AWS A5.20 / ASME SFA5.20 E71T-1

JIS Z3313 YFW-C502R

  Applications

All position welding of machinery, shipbuilding, bridges. With high Impact Values of the weld metal.

  Usage Specifications

Supercored 71 is a flux cored wire which has been designed to run over a wide range of positions and currents. It has a smooth and quiet arc and it’s slag detachability is good.

  Welding Position                                                         Welding Current                                   Shielding Gas

Welding Position Guide

DC+

Use 100% C02 Gas Only

Proper preheating (50~150’C) and interpass temperature must be used in order to release hydrogen which may cause cracking in the weld metal when welding medium to heavy plates.

One-sided welding defects such as hot cracking may occur if the welding speed is to high.

  Typical Chemical Composition Of All-Weld Metal (%)

C

Si

Mn

P

S

0.03

0.51

1.26

0.010

0.011

  Typical Mechanical Properties of All-Weld Metal

Y.S N/mm sq

T.S N/mm sq

E.L ( % )

Temp 'C

Impact Test-J cvn

545

572

28

0 / -20

160

  Available Size, Code, Recommended Current

Code

Size

Current Range

Pack Size

SC7112

1.2mm

120 ~ 300 amps

15 Kg

SC7116

1.6mm

180 ~ 400 amps

15 Kg

Supercored 70NS

AWS A5.18 / ASME SFA5.18 E70C-6M

JIS Z3213 YFW-A50DM

  Applications

Supercored 70NS is designed to be used for shipbuilding, machinery, bridge construction, structural fabrication, automated or robotic welding.

  Usage Specifications

SC70NS is a metal cored wire which combines the high deposition rates of F.C.W with the high efficiencies of a solid wire. It has a exceptionally smooth and stable ARC, low spatter and minimal slag coverage.

  Welding Position                                                         Welding Current                                   Shielding Gas

Welding Position Guide

DC+

Use Argon +20~25% C02 Gas

Proper preheating (50~150’C) and interpass temperature must be used in order to release hydrogen which may cause cracking in the weld metal when welding medium to heavy plates.

One-sided welding defects such as hot cracking may occur if the welding speed is to high.

  Typical Chemical Composition Of All-Weld Metal (%)

C

Si

Mn

P

S

0.03

0.55

1.40

0.011

0.017

  Typical Mechanical Properties of All-Weld Metal

Y.S N/mm sq

T.S N/mm sq

E.L ( % )

Temp 'C

Impact Test-J cvn

440

519

27

-30

50

  Available Size, Code, Recommended Current

Code

Size

Current Range

Pack Size

SC70NS12

1.2mm

230 ~ 300 amps

15 Kg

SC70NS16

1.6mm

290 ~ 360 amps

15 Kg

SF-70MX

AWS A5.20 / ASME SFA5.20 E70T-1

JIS Z3313 YFW-C50DM

  Applications

SF-70MX is a metal cored wire which is designed for high productive welding of structural steels in excess of 6mm.

  Usage Specifications

This wire benefits from a high deposition rate with very low spatter loss. It has excellent penetration and a good stable ARC.

  Welding Position                                                         Welding Current                                   Shielding Gas

Welding Position Guide

DC+

Use Argon +20~25% C02 Gas

Proper preheating (50~150’C) and interpass temperature must be used in order to release hydrogen which may cause cracking in the weld metal when welding medium to heavy plates.

One-sided welding defects such as hot cracking may occur if the welding speed is to high.

  Typical Chemical Composition Of All-Weld Metal (%)

C

Si

Mn

P

S

0.05

0.50

1.50

0.011

0.013

  Typical Mechanical Properties of All-Weld Metal

Y.S N/mm sq

T.S N/mm sq

E.L ( % )

Temp 'C

Impact Test-J cvn

560

590

28

0

60

  Available Size, Code, Recommended Current

Code

Size

Current Range

Pack Size

SF70MX12

1.2mm

250 ~ 300 amps

15 Kg

SF70MX16

1.6mm

300 ~ 350 amps

15 Kg

Supercored 81-K2

AWS A5.29 / ASME SFA5.29 E81T1-K2

JIS Z3313 YFL-C506R

  Applications

Supercored 81-K2 is used for the welding of low temperature service steels in the construction of LPG & LNG storage tanks.

  Usage Specifications

Sc81-K2 is a titania type flux cored wire designed for all position welding.

  Welding Position                                                         Welding Current                                   Shielding Gas

Welding Position Guide

DC+

Use 100% C02 Gas Only

Proper preheating (50~150’C) and interpass temperature must be used in order to release hydrogen which may cause cracking in the weld metal when welding medium to heavy plates.

One-sided welding defects such as hot cracking may occur if the welding speed is to high.

  Typical Chemical Composition Of All-Weld Metal (%)

C

Si

Mn

P

S

Ni

0.04

0.35

1.35

0.012

0.011

1.50

  Typical Mechanical Properties of All-Weld Metal

Y.S N/mm sq

T.S N/mm sq

E.L ( % )

Temp 'C

Impact Test-J cvn

540

620

28

-30 ~ -60

110

  Available Size, Code, Recommended Current

Code

Size

Current Range

Pack Size

SC81K212

1.2mm

170 ~ 300 amps

15 Kg

SC81K216

1.6mm

200 ~ 350 amps

15 Kg

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