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MACROLOY 812

MACROLOY 812

Low heat input, anti-wear alloy electrode for tough, cavitation- and abrasion resistant overlays on martensitic stainless steels.

PRODUCT DESCRIPTION:

• Specially formulated anti-wear alloy for martensitic stainless steels.
• Resistant to cavitation, erosion, abrasion, and particle impact.
• Suitable for overlay and build-up applications.

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Applications

STANDARD:

ASME Sec-II-C, AWS-SFA-5.4, E410 (Mod)

ALLOYING ELEMENTS:

C, Si, Mn, Cr, Ni

HARDNESS:

32 – 35 HRC

Size Welding Amperage
3.15 mm 80-110 A
4.00 mm 110-150 A
5.00 mm 150-190 A

Product Specification

• Tough deposits for harsh service environments.
• Low heat input minimizes distortion.
• Excellent anti-wear properties.

• Chromium-rich alloy system for wear and erosion resistance.

• Grind worn/fatigued metal.
• Preheat 13% chrome steels to 200–300 °C.
• Use AC/DC+; chip slag between passes.
• Maintain interpass temp at 200 °C.
• Heat treat/stress relieve at 580–620 °C.

• Pump sleeves, refiner cones, impellers, turbine runners, buckets.
• Anti-wear coating on new or worn sugar mill trash plates.

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