| Category |
Test Items |
| Chemical Composition, Model |
Brand identification (carbon steel, stainless steel, die steel, aluminum alloy, copper alloy, alloy steel); |
| Elements (O, N, H, C, S, Pt, Au, Ba, Pd and conventional elements); |
| Purity (Ni, Ti, Ag, W, Au, Al, Cu, Fe, Zn, Cr purity). |
| Mechanical Behavior |
Tensile test (tensile strength, yield strength, area shrinkage, elongation, elastic modulus), impact test (normal temperature impact, low temperature impact), hardness test (Vickers hardness, Rockwell hardness, Brinell hardness), load bearing test, compression test, bending test, flattening test, ring breaking torque, cupping test, flaring test, shear test, welding bond force. |
| Surface Plating Test |
Coating thickness, film weight, coating composition, coating porosity, adhesion, abrasion resistance, chemical resistance, pencil hardness, acid/alkali resistance, coating morphology analysis, surface stain analysis. |
| Reliability Test |
Salt spray test (neutral salt spray, accelerated copper ion, acid salt spray), vibration, gas, IP level, damp heat, high and low temperature, rain, sand and dust, aging, xenon lamp, ultraviolet, constant temperature and humidity, water spray test, dry heat test, high temperature resistance. |
| Microstructure |
Grain size, non-metallic inclusions, low magnification structure, microstructure, stainless steel phase content, gray cast iron metallography, ductile iron metallography, vermicular graphite iron metallography, fracture inspection, hardened layer depth. |
| Size |
Regular dimension, flatness, straightness, roundness, roughness, parallelism, inclination, positional degree, perpendicularity, micro dimension, reverse engineering, profile, runout, concentricity, coaxiality. |
| Physical Properties |
Density, melting point, resistivity, particle size distribution, electrical conductivity/thermal, thermal expansion coefficient, friction coefficient, specific heat capacity, residual stress, magnetic induction intensity, iron loss, water drop angle, electromagnetic compatibility, phase analysis. |
| Failure Analysis |
Fracture failure, corrosion failure, foreign body analysis, and coating failure. |
| Other |
Corrosion test (corrosion rate, mass loss); |
| Flaw detection (magnetic particle, penetration, X-ray flaw detection, ultrasonic flaw detection); |
