ASTM A453 Grade 660 Fasteners
A453 Grade 660 Fasteners are used for high temperature applications, where the service temperature exceeds carbon steel or alloy steel working temperature. usually Grade 660 fasteners are preferred over ASTM A540 B21 & ASTM A193 Grade B16. Set of stud and heavy hex nuts are most commonly used in petrochemical refineries.
ASTM A453 Grade 660 Class A/B/C/D Product Range
Specifications
- ASTM A453
- ASTM A638
- EN 10269
- EN 10083-3
- ISO 3506-5
- DIN 267
Surface Treatments
- Xylan 1070 / 1014 / 1400 / 1424
- Xylar 2 / 101
- SermaGard 1105 / 1280
- Dacromet 320 / 500
- TakeCoat 1000 Ceramic
- Magnigard
- MolyKote
Certifications
- ISO 9001 - 2015 Certified
- PED 2014/68/EC
- NACE MR0175/ISO 15156-2
- NORSOK M-650
- DFAR
- MERKBLATT AD 2000 W2/W7/W10
