ASTM A453 660B

Our ASTM A453 660B products are designed to meet challenging conditions within the power generation industry.

ASTM A453 660B 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 660B: Forms

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

ASTM A453 660B: 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 660B: Chemical Composition

Carbon	0.08	% Max
Manganese	2.00	% Max
Phosphorus	0.040	% Max
Sulphur	0.030	% Max
Silicon	1	%
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 660B: 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	–