ASTM A194 8T Grade is manufactured from AISI 321 (UNS S32100) stainless steel, by either forging by hot or cold method or machine from conditioned bar, in a carbide solution treated condition for corrosive resistant applications.
Manufactured to ASTM A194 standard specification, LoneStar Fasteners Europe can also offer with supplementary requirements of the standard as required by the application.
ASTM A194 8T: Forms
| LoneStar Manufacture | ||
| Imperial Nuts – Heavy and Normal Series – Including ANSI B18.2.2 | ✓ | |
| Metric Nuts – Regular and High types – Including DIN 934 H=D, ISO | ✓ | |
| Available with locking features | ✓ |
ASTM A194 8T: Sizes and Threads
| LoneStar Manufacture | ||
| Metric Coarse | ✓ | |
| Metric Fine | ✓ | |
| Imperial UNC | ✓ | |
| Imperial 8UN | ✓ | |
| Imperial UNF | ✓ | |
| ACME | ✓ | |
| Metric sizes available | Up to M100 | |
| Imperial sizes available | Up to 4.00″ |
ASTM A194 8T: Chemical Composition
| Carbon | 0.08 | % Max |
| Manganese | 2 | % Max |
| Phosphorus | 0.045 | % Max |
| Sulphur | 0.03 | % Max |
| Silicon | 1 | % Max |
| Chromium | 17-19 | % |
| Nickel | 9-12 | % |
| Molybdenum | 2-3 | % |
| Copper | – | … |
| Niobium | – | … |
| Titanium MINI | 5XC + N 0.70 | % Max |
| Vanadium | – | … |
| Aluminium | – | … |
| Colombium +Tantale | – | … |
ASTM A194 8T: Mechanical Properties
| Proof Load | Hardness | Hardness, max | Hardness, min | |
| Up to 4” Inc. | ASTM A194 Table 3 + 4 |
126-300 HB | 32 HRC | 60 HRB |
Similar or Equivalent Standards
| AISI 321 |
| AFNOR Z6 CNT 18.1 |
| DIN X10 CrNiTi 18.09 |
| B.S. 1506-821 GrTi |
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