Description of Material
The following Bolting Material grades are covered by this standard:
API 6ACRA 718 (120 ksi)
ASTM A453/A453M 660D
All products shall meet the requirements of the referenced ASTM specification, and the modifications specified by the API 20F standard and the relevant bolting specification level.
|Hexagon Headed Bolting||✓|
|Socket Headed Bolting||✓|
|Double Ended and Waisted Studs||✓|
|Associated OEM Parts||✓|
Sizes and Threads
|Metric sizes available||Up to M100|
|Imperial sizes available||Up to 4.00″|
Requirements as per BSL
|BSL – 2||Threads shall be UNRC/UNR
Furnace calibration to API 6A Annex M
Reduction Ratio 4:1 min
Thermocouple to be attached during heat treatment
Furnace loading and Quench media to API 6HT, and will include furnace load diagrams
|BSL – 3||As per BSL-2
Product analysis in accordance with ASTM A453 Grade 660 Class D, API 6ACRA or UNS R30035 to be performed.
All testing by raw material supplier shall be performed by us.
|Testing samples shall be carried out as per standard and relevant BSL|