STUDBOLT CARRIES OVER £3M OF PETRO-CHEMICAL GRADE MATERIALS.
All stock is controlled by the company’s fully integrated ERP system ensuring real-time stock control.

ALL MATERIAL IS FULLY TRACEABLE TO MILL CERTIFICATES.
PETRO-CHEMICAL BOLTING GRADES
ASTM A193 | B6 | B8M class 1 & 2 |
B7 | B8T class 1 & 2 | |
B7M | B8C | |
B8 class 1 & 2 | ||
ASTM A320 | L7 | L43 |
L7M | ||
ASTM A453 | 660A | 660D |
660B | ||
ASTM A182, A276, A479 | 31803 | 32760 SA, FG, FLT |
PETRO-CHEMICAL NUT GRADES
ASTM A194 | 2H | 8 |
2HM | 8M | |
4 | 8A | |
6 | 8MA | |
7 | 8T | |
7M | 8C | |
ASTM A453 | 660A | 660D |
660B | ||
ASTM A182, A276, A479 | 31803 | 32760 |
materials
EXOTIC ALLOYS | Hastelloy C22/C276 | Inconel 600/625/718/800/925 |
Monel 400/K500 | ||
Nitronic 50/60 | ||
DUPLEX & SUPER DUPLEX | 32760 (Zeron 100*) SA, FG, FLT | 31803 (1.4462) |
32750 | 31254 (254SMO) | |
32550 (Ferralium) | ||
HEAT RESISTING GRADES | Durehete 950, 1055 | X22CrMoV12.1 (1.4923) |
21CrMoV5.7 | X19CrMoVNbN11.1 (1.4913) | |
Jethete X19 | B16 | |
Esshete 1250 | 1.7729 | |
Nimonic 80A/90 | ||
STAINLESS STEELS | 304 | 347 |
310 | 410 | |
316 | 420 | |
317 | 431 | |
321 | 904L (Uranus B6) | |
PRECIPITATION HARDENED STAINLESS STEELS | 17/4ph (630) | FV520B |
CARBON & ALLOY STEELS | Mild steel | 817M40 (EN24) |
080M40 (EN8) | 826M40 (EN26) | |
605M36 (EN16) | AISI 4140 | |
709M40 (EN19) | AISI 4340 | |
NON-FERROUS | Hiduron | Copper |
Marinel | Aluminium | |
Cupro nickel 70/30 & 90/10 | C63000 | |
Silicon aluminium bronze | Manganese bronze | |
Phosphor bronze | Aluminium bronze |