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Fabricating and Repairing 4130 and 4140 Steels in Heavy Equipment Welding

The strength of these steels is great for parts that require high strength and durability, but their higher carbon, chromium and molybdenum levels also make them more susceptible to cracking. Here are some insights into welding these steels during new fabrication and in repair, and how the right filler metal can help ensure success.

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