1187 – Green 312(29/9)

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INTERNATIONAL CLASSIFICATIONS

AWS/ASME A 5.4 E 312-16*

EN 1600: E 29.9 R 32

DIN 8556: E 29.9 R 23

ISO 3581: E 29.9 R 32

NFA 81-343: EZ 29.9 R 23

*Proprietary Modification: Special specification exceeding chemistry for extreme crack resistance.

FEATURES & APPLICATIONS

Due to exceptional strength and crack resistance, it is ideal for repairing tools, dies, spring steel and any dissimilar metal combinations, except for the aluminum and copper alloys. It is also recommended for repairing worn parts and as an underlay for hardfacing.

  • The ultimate electrode for welding all types of steels, without any danger of cracking or breakage. Special “FERRITE BALANCED” Chemistry also serves as a “STUD PULL” electrode.
  • An engineered deposit chemistry that has the perfect ratio of metallics to offer crack resistance far superior to any other brand.
  • All colors are usually kept in stock unmarked.
  • Special flux formulation eliminates slag interference in horizontal fillets.
  • Slag is designed to turn to powder making this electrode ideal for “STUD PULL” applications.
  • Available in TIG form as product code 6007 and in MIG form as product code 7007.

 

All Weld Metal Analysis (Typical Weight %)

Microstructure: A duplex austenite/delta ferrite structure with a Shaeffler ferrite value below 35%.

Code Color

312-17*

312-16

1119 Gold

X

1124 White

X

1145 Blue

X

1147 Red

X

1149 Maroon

X

1150 Orange

X

1153 Blue

X

1154 White

X

1157 Green

X

1187 Green

X

 

Type

Cu

C

Mn

Cr

Si

S

Ni

P

Mo

Fe

312-17*

Special Proprietary Non-Conforming Chemistry

312-16

.06

.1

.8

29

1

.01

9

.02

.7

Bal

 

Typical Mechanical Properties

Undiluted Weld Metal Maximum Value Up to:

Tensile strength as welded: 128,000 psi (880 MPa)

W:ork hardened: 186,000 psi (1280 MPa)

Yield strength: 90,000 psi (630 MPa)

Elongation 32%, 36% 17 coatings

Reduction of area: 25%

Impact Energy 50J: 68°F (20°C)

Hardness: Brinell 225

 

Welding Current & Instructions

Recommended Current: DC reverse polarity (Electrode +) or AC

Diameter (mm)

1/16 (1.6)

5/64 (2.0)

3/32 (2.5)

1/8 (3.25)

5/32 (4.0)

3/16 (5.0)

Minimum Amperage

25

30

35

60

75

130

Maximum Amperage

35

55

70

110

140

200

Welding Techniques: The area in which the weld is to be made should be free of rust, grease, paint and other materials which cause weld contamination. A 90° vee joint should be used when joining heavy sections. Maintain a short arc length and use stringer beads.

Welding Positions: Flat, Horizontal, Vertical up, Overhead

Deposition Rates:

Diameter (mm)

Length (mm)

Weldmetal/ Electrode

Electrodes per lb (kg) of Weldmetal

Arc Time of Deposition min/lb (kg)

Amperage Settings

Recovery Rate

1/16 (1.6)

12″ (300)

.13oz (4g)

120 (264)

59 (129)

25

100%

5/64 (2.0)

12″ (300)

.14oz (4g)

114 (251)

47 (103)

40

100%

3/32 (2.5)

12″ (300)

.38oz (11g)

40 (88)

37 (82)

65

100%

1/8 (3.2)

14″ (350)

.64oz (18g)

25 (55)

26 (58)

100

100%

5/32 (4.0)

14″ (350)

1oz (28g)

16 (36)

21 (46)

130

100%

3/16 (5.0)

14″ (350)

1.6oz (45g)

10 (23)

14 (30)

170

100%

 

APPROXIMATE ELECTRODE PACKAGING & DIMENSIONS

Diameter (mm)

1/16 (1.6)

5/64 (2.0)

3/32 (2.5)

1/8 (3.25)

5/32 (4.0)

3/16 (5.0)

Length (mm)

12″ (300)

12″ (300)

12″ (300)

14″ (350)

14″ (350)

14″ (350)

Electrodes / lb

54

42

26

14

9

7

Electrodes / kg

119

92

58

31

20

15

 

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