
| J757Ni | According with GB E7515-G Corresponding with AWS E11015-G | ||||||||||||||||||
| Introduction: J757Ni is a kind of low-alloy high strength steel electrode with low-hydrogen natrium type coating. The deposited metal has excellent mechanical properties, and especially higher low temperature impact toughness and excellent crack-resistance. | |||||||||||||||||||
| Uses: Mainly used for steel at corresponding strength grade, such as 14MnMoNbB, WEL-TEN80, etc. | |||||||||||||||||||
Chemical Composition of Deposited Metal (%)
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Mechanical Properties of Deposited Metal
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| Diffusible Hydrogen Content in Deposited Metal:≤4.0ml/100g(Glycerine Hydrogen Test) | |||||||||||||||||||
| X-ray Radiographic Inspection:ⅠDegree | |||||||||||||||||||
Reference Current(DC+)
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| Instructions: 1.The electrodes must be baked under about 350-380℃ for an hour before welding, and used as soon as baking is completed. 2.The stains on the weldments, such as rust, oil stains, moisture, etc., must be cleared away before welding. 3.When welding, short arc must be used and stringer bead is suitable. | |||||||||||||||||||
| J757Ni | According with GB E7515-G Corresponding with AWS E11015-G | ||||||||||||||||||
| Introduction: J757Ni is a kind of low-alloy high strength steel electrode with low-hydrogen natrium type coating. The deposited metal has excellent mechanical properties, and especially higher low temperature impact toughness and excellent crack-resistance. | |||||||||||||||||||
| Uses: Mainly used for steel at corresponding strength grade, such as 14MnMoNbB, WEL-TEN80, etc. | |||||||||||||||||||
Chemical Composition of Deposited Metal (%)
| |||||||||||||||||||
Mechanical Properties of Deposited Metal
| |||||||||||||||||||
| Diffusible Hydrogen Content in Deposited Metal:≤4.0ml/100g(Glycerine Hydrogen Test) | |||||||||||||||||||
| X-ray Radiographic Inspection:ⅠDegree | |||||||||||||||||||
Reference Current(DC+)
| |||||||||||||||||||
| Instructions: 1.The electrodes must be baked under about 350-380℃ for an hour before welding, and used as soon as baking is completed. 2.The stains on the weldments, such as rust, oil stains, moisture, etc., must be cleared away before welding. 3.When welding, short arc must be used and stringer bead is suitable. | |||||||||||||||||||