Test Items
- Test Items for ETP Products
- Material Properties
- Surface Characteristics
- Corrosion Resistance
| No. | Test Sample Name | Test Items | Applicable Standards | Test Frequency |
|---|---|---|---|---|
| 1 | ETP products |
Stretching (tensile strength,
yield strength, elongation) |
GB/T 2975£1998
GB/T 228.1-2010 JIS Z 2241-2011 JIS Z 2201-1998 ASTM E8-2011 ASTM A370-2012 |
2/coil (both ends) |
| 2 | r value |
GB/T 2975£1998
GB/T5027-2007 ASTM E517£2000£¨ 2010re£© |
2/coil (both ends) | |
| 3 | n value | GB/T 2975£1998 GB/T5028-2008 ASTM E646£07 | 2/coil (both ends) | |
| 4 |
Superficial Rockwell hardness;
Rockwell hardness |
GB/T230.1-2009
ISO6508-1-2005 ASTM E18-2011 ASTM E140-2007 |
4/coil (both ends) | |
| 5 | Roughness Ra, PPI, Rmax, Wca |
GB/T 2975£1998 SAE J911-1998
GB/T2523-2008 JIS B0610-87 |
2/coil (both ends) | |
| 6 | Barring | BJCB09 | 4/coil (both ends) | |
| 7 | Magnetic particle testing SI and BH | Baosteel’s internal standards | 4/coil (both ends) | |
| 8 | Crystallite size | BJCB10 | As per requirements | |
| 9 | Tin coating weight | GB/T 2975£1998 JIS G7303-2008 GB/T 1838£2008 ASTM A 630-03 | 1/2 coils | |
| 10 | ATC | GB/T 2975£1998 ASTM A623M-08 GB/T 22316-2008 | As per contract requirements |
