ASTM A453 660C

ASTM A453 660C Grade is used in high temperature applications offering expansion co-efficient comparable to austenitic stainless steels. The grades of A/B/C and D are defined by the solution treatment and subsequent hardening treatment of the material as defined under ASTM A453.

Common uses of this grade are oil, gas and petrochemical and power generation applications, normally in adverse or challenging conditions at elevated temperatures.

LoneStar Fasteners Europe can manufacture product in various forms to the standard of A453, including its supplementary requirements.

ASTM A453 660C: Forms

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

ASTM A453 660C: Sizes and Threads 

  LoneStar Manufacture 
Metric Coarse
Metric Fine
Imperial UNC
Imperial 8UN
Imperial UNF
ACME
Metric sizes available Up to M100
Imperial sizes available Up to 4.00″

ASTM A453 660C: Chemical Composition

Carbon 0.08 % Max
Manganese 2.00 % Max
Phosphorus 0.040 % Max
Sulphur 0.030 % Max
Silicon 1 % Max 
Chromium 13.5-16.0 %
Nickel 24.0-27.0 %
Molybdenum 1.00-1.50 %
Copper
Niobium
Titanium 1.90-2.35 %
Vanadium 0.10-0.50 %
Aluminium 0.35 % Max
Boron 0.001-0.010 %

ASTM A453 660C: Mechanical Properties

Up to 4” Inc.
Tensile Strength Min, Ksi (MPa) 130 (895)
Yield Strength min, 0.2% offset Ksi (MPa) 85 (585)
Elongation in min% 15
Reduction of Area min% 18
Hardness 248-341 HB
Hardness 24-37 HRC

ASTM A453 660C: Stress Rupture Requirements

Test Temp. °F (°C) 1200 (650)
Stress min. ksi (MPa) 56 (385)
Time to Rupture, min, hrs 100
Elongation min, % 5

Similar or Equivalent Standards 

ASTM B638
EN 10269 1.4980

 

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