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ASTM A453 Grade 660 Bolts

ASTM A453 Grade 660 Bolts

ASTM A453 Grade 660 Bolts



Specification of Grade 660 Class A Nuts


Specification ASTM A453/ ASME SA453
Size Ranges M03 – M56 | 3/6" upto 2"
Lengths From 3 - 200 mm
In Form of:
  • Square
  • Round
  • Hex
  • Threading as per Gauge.
SA 453 gr 660 class a threaded rod Threads BSW, UNC, METRIC, UNF, BSF or as per requirements

ASTM A453 Grade 660 Bolts Equivalent Material


UNS BS Wr No. En Name DIN EN JIS AMS ASTM other names Additional Requirements
S66286 HR 51 1.4944 X6NiCrTiMoV26-15 10269 SUS 660 5726 ASTM A453 GRADE 660A incoloy a286 NACE MR-0175

Gr.660 cl.b Screw Chemical Properties


Compound Gr. 660
Molybdenum 1.00-1.50
Carbon 0.08 max
Phosphorus, max 0.040 max
Sulfur, max 0.030 max
Manganese 2.00 max
Silicon 1.00 max
Chromium 13.5-16.0
Tungsten ...
Titanium 1.9-2.35
Columbium * ...
Nickel 24.0-27.0
Aluminum 0.35 max
Vanadium 0.10-0.50
Boron 0.001-0.010
Copper -

Mechanical Strength of A453 grade 660 class c Stud bolts


Grade CL. Tensile Strength Yield Strength Elongation
in 4D, min, %
Reduction
of Area, min, %
Brinell
Hardness
Number
Approximate
Rockwell
Hardness, B & C
Ksi Mpa Ksi Mpa min max
Grade 660 A, B and C 130 895 85 585 15 18 248-341 24 HRC 37 HRC
Grade 660 D 130 895 105 725 15 18 248-341 24 HRC 35 HRC

A453 Gr 660 Cl D Hex Bolt Sizing Table


A453 Gr 660 Cl D Hex Bolt Sizing Table