Page 148 - Technical Guidbook - Zika industrial Welding Supplies

Z-2600 LOW ALLOY HEAT WELDING HEAVY Z- 2601
TREATABLE STEELS MECHANICAL EQUIPMENT

Description:
Basic coated electrode for welding low alloy steels with
high yield strength. Suitable for welding T1 steels, HY80
steels and quenched-tempered fine grained steels.
Description:
Electrode for welding tool steels which can be thermally treated to improve Uses:
mechanical properties. • Fabricating and repairing heavy mechanical equipment.
A minimal amount of Hydrogen in the welding material enables crack free welding . • Earth working equipment.
• Machinery parts.
Uses: • Tractor parts.
• SAE 8630. • Welding high yield steels.
• SAE 4130. • HYPERACTIVITY 80.
• SAE 4340. • USS-T1.
Technique and Recommendations: • USS-T1A, etc.
When base metal thickness is bigger than 6 mm the steel should be pre-warmed
to 250°C and welding should be performed immediately. the interpass temperature Technique and Recommendations:
should be maintained at 250ºC. Thinner material should be warmed if rapid cooling Verify proper re-drying of the electrode.
is suspected. Thoroughly clean rust, paint and dirt, preferably by grinding.
A short arc should be maintained with a seam no wider than the thickness of the Metal to be welded should be dry.
electrode. To prevent stress concentrations, depressions should be filled and sharp corners
Welding position: should be grounded.
Welding position: Re-drying
2h/300ºC
ASME: 1G 2F 2G 3G 4G
ISO 6947 PA PB PC PF PE Mechanical Properties:
ASME: 1G 2F 2G 3G 4G Tensile strength: 700 N/mm²
Mechanical Properties: Re-drying ISO 6947 PA PB PC PF PE Yield stress: 780 N/mm²
2h/300ºC Elongation: 22%
Oil quench 870°C Oil quench 870°C
Tempered 620°C Tempered 510°C Impact properties: 90J@-29ºC
65J@-51ºC
Yield point [N/mm²] 834 1048
Tensile strength [N/mm²] 951 1124
Elongation [%] 18 16
Reduction of area [%] 32 36
Current Diameter Types of
)Amps( in mm Current and Polarity
Current Diameter Types of
)Amps( in mm Current and Polarity 70-95 3/32 2.5 AC
75-100 3/32 2.5 90-140 1/8 3.25 DC )+(
110-140 1/8 3.25 135-185 5/32 4.0
DC: )+( 70V min O.C.V
150-190 5/32 4.0 175-240 3/16 5.0
190-260 3/16 5.0 250-330 1/4 6.0
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