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AIT Welder 2nd Period Practice Test Flash Cards

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Sulphur and phosphorus impurities exist in steel at what percentages, and what are their low-percent properties?

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<0.05% total; Sulphur at 0.10-0.15% in free machining steels improves machinability but with poor weldability; Phosphorus improves strength, corrosion resistance and machinability

AIT Welder 2nd Period Practice Test Flash Cards

Sulphur and phosphorus impurities exist in steel at what percentages, and what are their low-percent properties?

?

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