1.Cemical Analysis
2.NonDestructive test
3.Mecanical test
4.Structure Observation
5.Corrosion test
6.Other Corrosion test
| Analysis | Specimen |
| Florecent x-ray analysis expect C, S, O, N | 10mm Dia. 20mm Dia. 30mm Dia. |
| C, S analysis | Machining chips |
| O, N analysis | Machining chips |
| Inspection/ Measurement | Include |
| Appearance check | Photo include |
| Dye penetrant inspection | Photo include |
| Dimensional inspection | - |
| Radiography inspection | - |
| Measurement for Ferrite amount Carburization Surface roughness, etc |
- |
| Test | |
| Tensile test | ar room temp. (UTS, 0.2PS, Elongation, Reduction of area) |
| at high temp. (UTS Elongation, Reduction of aera) |
|
| Impact test | at room temp. |
| at lower temp. (designated temp. lower than room temp.) |
|
| at higher temp. (designated temp. higher than room temp.) |
|
| Hardness test | Brinell hardness test |
| Rockwell hardness test | |
| Shore hardness test | |
| Micro vickers hardness test | |
| Echo chip | |
| Creep rupture test | |
| Bend test | at room temp. |
| at higher temp. (designated temp. higher than room temp.) |
|
| Fatigue test | Tensile-Compress (Atmosphere) fatigue limit pu to 10,000,000 |
| Tensile-Compress (Corrosion enviroment) | |
| Rotating (Atomosphere) | |
| Rotating (Corrosion enviroment) | |
| Abrasion test | ASTM G65 Dry sand/Rubber wheel |
| Micrpscopeto be used | Observation |
| Optical Microscope | Microstructure |
| Inclusion amount measurement | |
| SUMP structure | |
| Grain size measurement, Sprint, etc | |
| Scanning Electron Microscope | Fracture surface observation |
| Chemical analysis by EDS (limited to the element heavier tha N) |
| Type of test | Standard |
| General Corrosion test | JIS G 0591 (5% H2SO4) 6Hours |
| Pitting & Crevice Corrosion test | JIS G 0578 (6%FeCl3) 24 Hours ASTM G48 |
| Pitting potential measurement test | JIS G0577 (3.5%NaCl, 50deg.C) ASTM G61 |
| Anode polarization test | JIS G0579 (H2SO4) ASTM G5 |
| Measurement of electro chemical reaction
rate on stainless steel |
JIS G 0580 ASTM G 108 |
| Stress cracking Crorrosion test | JIS G 0576 (42%MgCl2) ASTM G36 a. single axis tensile method b. U bending test |
| Inter-granular Corrosion test | JIS G 0571 (10% Oxilic aciod etching) ASTM A262 practice A |
| Huey test JIS G 0573 (65% Nitric acid) ASTM A262 practice C |
|
| Strauss test JIS G 0575 (Sulfuric acid / Copper sulfate) ASTM A262 practice E |
Any other corrosion test is estimatd upon
receipt of inquiry
