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ASTM A320 Grade L43

ASTM A320 is a fastener standard defining chemical, mechanical, and heat treatment requirements for bolts & studs including carbon steel, alloy steel and stainless steel grades for low temperature & cryogenic service

Description of Material

ASTM A320 Grade L43 is manufactured from AISI 4340 base material and is supplied in a quenched and tempered condition. It is mainly used for large diameter bolting, predominantly between 2 ½” and 4” diameter throughout the oil and gas industry in low temperature environments.
Lonestar can offer this material in a standard condition, or it can be provided with supplementary testing as defined in ASTM A320. This material can also be offered fully in compliance to the additional requirements of API 20E BSL 2 and 3.

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ASTM A320 L43

LoneStar Manufactures
Studbolts
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Studding
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Hexagon Headed Bolting
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Socket Headed Bolting
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Double Ended and Waisted Studs
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Associated OEM Parts
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Similar or Equivalent Standards

  • AISI 4340

Applications

  • Cold service pressure vessels
  • LNG facilities
  • Gas processing plants
  • Heat exchangers
  • Storage tanks
  • Valves
  • Cryogenic piping systems
  • Low temp process lines
  • Subsea Wellheads

Disclaimer

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.

Get in touch

For detailed product information or custom pricing, please reach out to LoneStar to discuss your project requirements and receive a tailored quotation.

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