Petro-chemical fasteners
Highest quality specifically for petro-chemical needs
Petro-chemical fasteners
At alstertaler screws & precision parts gmbh you can get petro-chemical fasteners in a wide variety of designs and made from a wide variety of materials, including stud bolts with metric fine thread according to DIN 976 or bolt-nut combinations with UN threads.
Find out about the wide range of petrochemical fasteners from alstertaler on this page.
We are your strong partner for threaded bolts according to petrochemical standards as well as for proven CNC turned parts, CNC milled parts and bent parts.
Types of threads
We offer you our petro-chemical fasteners
- Metric fine thread or metric standard thread
- UNC, UNF and 8 UN threads
- as well as BSW or BSF Whitworth threads
so that you are prepared for every application. In addition, we have a wide range of advanced manufacturing and coating processes that enable even more precise specialization in the respective area of application.
Possible heat treatments:
- Compensate
- Normalize
- Nitriding
- Case hardening
- Hardening
- Precipitation hardening
- Solution annealing
Available coatings:
- Zinc
- Zinc-nickel
- Hot-dip galvanizing
- PTFE/Xlan/Teflon
- Phosphate
- Xylar/Xylan
- Molykotes
- Sherardization
- Cadmium
Also available: specially manufactured threaded rods, bolt-nut combinations, etc.
In addition to standard stud bolts and other fasteners, we can also supply you with completely individual fastening elements in the form of drawing parts. Different materials, thread types or test methods are also possible.
Please contact us if you have any questions about this or about threaded bolts and bolt-nut combinations. We would be happy to advise you on petrochemical fasteners and other products, especially with regard to our particularly attractive call-off and framework orders.
We are looking forward to your contact!
Your personal offer
Do you need a personal offer? You can send us a message right here. Also attach the appropriate technical drawing to your message. So we can put together the right offer for you.
Petro-chemical bolt 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 nuts 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
| SPECIAL ALLOYS | Hastelloy C22/C276 | Inconel 600/625/718/800/925 |
|---|---|---|
| Monel 400/K500 | ||
| Nitronic 50/60 | ||
| DUPLEX AND SUPER DUPLEX | 32760 (Zeron 100*) SA, FG, FLT | 31803 (1.4462) |
| 32750 | 31254 (254SMO) | |
| 32550 (Ferralium) | ||
| HEAT RESISTANT 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 STEEL | 304 | 347 |
| 310 | 410 | |
| 316 | 420 | |
| 317 | 431 | |
| 321 | 904L (Uranus B6) | |
| PRECIPITATION HARDENED STAINLESS STEEL | 17/4ph (630) | FV520B |
| CARBON STEEL AND STELL ALLOYS | 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 |
