OVL-01 · 3 mm overlay / 5 mm backing
Dated plate datasheet execution only. Source edition, supplied plate size/grade/tolerances and requested fabrication require confirmation. No source-pass-count, blanket flatness/temperature, local stock/fabrication, installed fit or certification inference.
- Source product form
- Arc-deposited chromium-rich hardfacing overlay plate
- Source backing material
- Mild steel
- Nominal overlay thickness
- 3 mm
- Nominal backing thickness
- 5 mm
- Typical bulk surface hardness (HRC)
- 55–57 HRC
- Typical bulk surface hardness (HV)
- 590–630 HV
- Source abrasion test
- ASTM G65 — Procedure A
- Source surface weight loss
- 0.25 g max
- Source weight loss at 75% overlay depth
- 0.25 g max
- Hardness / abrasion qualification
- Overlay thickness ≤5 mm source bin. Typical bulk surface hardness and source abrasion-test limits are not supplied-lot certification, carbide microhardness, field wear life or performance for another procedure.
- Dimensional / fabrication qualification
- Overlay and backing thickness remain separate nominal values. Specify actual plate size, backing grade, tolerances, cut/form/machining and installed interfaces independently; source edition, supplied plate and fabrication applicability must be confirmed.