Non Aceptable
Solidification Discontinuity Level D2
Non Aceptable
Sand Expansion Discontinuity Quality Level E3
Non Aceptable
Sand Expansion Discontinuities Quality Level E5
Quality Level that all GEWE Casting Suppliers must delivery to GEWE facility
Visual Criteria for GEWE Sand Castings
Critical Areas
Surface Texture Quality Level A1
Non Critical Areas
Gas Porosity Quality Level C2
No acceptable
Gas Porosity Quality Level C3
Critical Areas & Non Critical Areas
Non Metallic Inclusions Quality Level B1
Definitions of Surface Quality A – Surface Texture. Natural surface of the casting after shpt blasting (4 levels) B – Non Metallic Inclusions – Non metallic material trapped on the casting surface (4 levels) C – Gas Porosity – Indications of gas at the casting surface (4 levels) D – Solidification Discontinuities E – Sand expansion Discontinuities F – Metal Inserts G – Metal Removal Marks – Surface remaining after using oxigas or air carbon or processes for metal removal
Non Acceptable
Non Metallic Inclusions Quality Level B2
Non Aceptable
Non Metallic Inclusions Quality Level B4
Non Aceptable
Solidification Discontinuity Level D1
Critical Areas & Non Critical Areas
Surface Texture Quality Level A2
Non Critical Areas
Surface Texture Quality Level A3
Critical Areas
Gas Porosity Quality Level C1源自Non Aceptable
Metal Inserts Quality Level F1
Non Aceptable
Metal Inserts Quality Level F3
(4 levels)
ASTM A802 Standard Practice for Steel Castings, Surface Acceptance Standards, Visual Examination
GEWE.all._spc_castings_supplement.GEEN.00 (392A1165)
(4 levels) H – Metal Removal Marks – Surface remaining after using a mechanical means of dressing a cast surface or
a previously thermally dressed surface (4 levels) J – Metal Removal Marks – Welds. Indications of welds fully or partially removed by thermal or mechanical dressing