ASTM A193 B5

LoneStar Fasteners provide a range of ASTM A193 B5 products suitable for high temperature applications.

Description of Material

ASTM A193 B5 is a ferritic steel used throughout the Oil and Gas industry, predominantly on flanges and fittings in high-pressure, high temperature piping applications with corrosive elements.

LoneStar Fasteners Europe offer ASTM A193 B5 in various forms, covering the basic requirements of ASTM A193, but can also offer with supplementary and additional requirements of the standard.


ASTM A193 B5: Forms

  LoneStar Manufacture 
Stud Bolts
Hexagon Headed Bolting
Socket Headed Bolting
Double Ended and Waisted Studs
Associated OEM Parts

ASTM A193 B5: Sizes and Threads 

  LoneStar Manufacture 
Metric Coarse
Metric Fine
Imperial UNC
Imperial 8UN
Imperial UNF
Metric sizes available Up to M100
Imperial sizes available Up to 6.00″

Chemical Composition

Carbon 0.1
Manganese 1.00
Phosphorus 0.040 % Max
Sulphur 0.03 % Max
Silicon 1
Chromium 4.0-6.0 %
Molybdenum 0.40-0.65 %

Mechanical Properties

Up to 4″ Inc.
Tensile Strength Min, Ksi 110
Yield Strength  min, 0.2% offset Ksi 80
Elongation in min% 16
Reduction of Area min% 50
Hardness Max N/A


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