Solid wire for gas metal arc welding
AssigneeJfe Steel Corporation
InventorsAtsushi Takada, Keiji Ueda
Life of this patent
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Abstract
Provided is a solid wire for gas metal arc welding, solid wire being suitable as a welding material for high-Mn steel materials and generating less fume during welding. The solid wire of the present invention has a composition containing, in mass %, C: 0.20 to 0.80%, Si: 0.15 to 0.90%, Mn: 15.0 to 30.0%, P: 0.030% or less, S: 0.030% or less, Al: 0.020% or less, Ni: 0.01 to 10.00%, Cr: 6.0 to 15.0%, Mo: 0.01 to 3.50%, O: 0.010% or less, N: 0.120% or less, and the balance being Fe and incidental impurities.
Claims10
A solid wire for gas metal arc welding, the solid wire comprising a composition that contains, in mass %,
- C:
- 0.20 to 0.80%,
- Si:
- 0.15 to 0.90%,
- Mn:
- 15.0 to 30.0%,
- P:
- 0.030% or less,
- S:
- 0.030% or less,
- Al:
- 0.020% or less,
- Ni:
- 0.01 to 10.00%,
- Cr:
- 6.0 to 15.0%,
- Mo:
- 0.01 to 3.50%,
- O:
- 0.010% or less,
- N:
- 0.120% or less, and
- the balance being Fe and incidental impurities.
A gas metal arc welding method comprising welding a high-Mn steel having a Mn content of 10 to 35% by gas metal arc welding in accordance with JIS Z 3930-2013 using a solid wire for gas metal arc welding and using, as a shielding gas, a mixed gas containing 10 to 40% CO2 and the balance being an inert gas Ar at a welding current of 180 to 330 A at a fume generation amount of 1200 mg/min or less, the solid wire having a composition that contains, in mass %,
- C:
- 0.20 to 0.80%,
- Si:
- 0.15 to 0.90%,
- Mn:
- 15.0 to 30.0%,
- P:
- 0.030% or less,
- S:
- 0.030% or less,
- Al:
- 0.020% or less,
- Ni:
- 0.01 to 10.00%,
- Cr:
- 6.0 to 15.0%,
- Mo:
- 0.01 to 3.50%,
- O:
- 0.010% or less,
- N:
- 0.120% or less, and
- the balance being Fe and incidental impurities.
Dependencies are inferred from the claim text.