BS EN ISO 3506 A4-50, 70, 80

LSFH is known globally as one of the world’s leading suppliers of strain hardened A4-50, A4-70 & A4-80 fasteners and bolting supplied to the rigorous manufacturing and testing demands of the leading Oil and Gas OEM companies.
A4-50, A4-70 & A4-80 grade stainless steel is supplied in the solution annealed condition (A4/AISI 316) and subsequently strain hardened by using the method of drawing the bar through fixed diameter die heads to impart the mechanical characteristics by cold working. The finished form is then machined from strain hardened bar.
Used extensively throughout the oil and gas sector, on control components both surface and subsea, the material offers good corrosion protection with mechanical characteristics found in carbon/alloy steel fasteners.
Lonestar offer a full range of components fully tested to the most demanding OEM specifications.

All information is for illustrutive purposes only.
LoneStar Group accepts no responsibility for the accuracy of data contained within or the use of any of the data by other parties. Properties do vary with the size and condition of the material.