ASTM A193 B16

Description of Material

ASTM A193 B16 is an alloy steel combining vanadium, chromium, molybdenum and is used throughout the Oil and Gas and Power Generation industries as a cost effective bolting solution and high-pressure, high temperature applications.

LoneStar Fasteners Europe offer ASTM A193 B16 to cover the basic requirements of ASTM A193 but can also offer with supplementary and additional requirements of the standard or industry specific requirements to demonstrate the integrity at elevated temperatures within a specific application.


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

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 0.36-0.47
Manganese 0.45-0.70
Phosphorus 0.035 % Max
Sulphur 0.04 % Max
Silicon 0.15-0.35
Chromium 0.80-1.15 %
Molybdenum 0.50-0.65 %
Vanadium 0.25-0.35 %
Aluminium 0.15 % Max

Mechanical Properties

2.1/2″ and under Over 2.1/2″ to 4″
Tensile Strength Min, Ksi 125 110
Yield Strength  min, 0.2% offset Ksi 105 95
Elongation in min% 18 17
Reduction of Area min% 50 45
Hardness Max 35 HRC 35 HRC

Mechanical Properties

Over 4” to 8”
Tensile Strength Min, Ksi 10
Yield Strength  min, 0.2% offset Ksi 85
Elongation in min% 16
Reduction of Area min% 45
Hardness Max 35 HRC

Similar or Equivalent Standards 


ASTM A1031 GRADE 4140
DIN 1.7223
B.S 708M40