Studbolts Materialien

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.

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    Petro-chemical bolt grades

    ASTM A193B6B8M class 1 & 2
    B7B8T class 1 & 2
    B7MB8C
    B8 class 1 & 2
    ASTM A320L7L43
    L7M
    ASTM A453660A660D
    660B
    ASTM A182, A276, A4793180332760 SA, FG, FLT

    Petro-chemical nuts grades

    ASTM A1942H8
    2HM8M
    48A
    68MA
    78T
    7M8C
    ASTM A453660A660D
    660B 
    ASTM A182, A276, A4793180332760

    Materials

    SPECIAL ALLOYSHastelloy C22/C276Inconel 600/625/718/800/925
    Monel 400/K500
    Nitronic 50/60
    DUPLEX AND SUPER DUPLEX32760 (Zeron 100*) SA, FG, FLT31803 (1.4462)
    3275031254 (254SMO)
    32550 (Ferralium)
    HEAT RESISTANT GRADESDurehete 950, 1055X22CrMoV12.1 (1.4923)
    21CrMoV5.7X19CrMoVNbN11.1 (1.4913)
    Jethete X19B16
    Esshete 12501.7729
    Nimonic 80A/90
    STAINLESS STEEL304347
    310410
    316420
    317431
    321904L (Uranus B6)
    PRECIPITATION HARDENED
    STAINLESS STEEL
    17/4ph (630)FV520B
    CARBON STEEL AND
    STELL ALLOYS
    Mild steel817M40 (EN24)
    080M40 (EN8)826M40 (EN26)
    605M36 (EN16)AISI 4140
    709M40 (EN19)AISI 4340
    NON-FERROUSHiduronCopper
    MarinelAluminium
    Cupro nickel 70/30 & 90/10C63000
    Silicon aluminium bronzeManganese bronze
    Phosphor bronze