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ASTM F436 Type 1, ASTM F436 Type 1 Bolt, Nuts, ASTM F436 Type 1 Bolt Manufacturer in India – Ananka Group

ASTM F436 Type 1 is a high-strength 5 percent chromium ferritic steel used to manufacture bolts, studs, stud bolts, and other fasteners for bolting pressure vessels, valves, flanges, and fittings, particularly in the power generation industry. The ASTM A564 standard includes alloy and stainless steel bolting for pressure vessels, valves, flanges, and fittings used in high temperature or high-pressure applications, as well as other special applications. There are many grades covered, including ferritic steels and austenitic stainless steels with designations such as B5, B6, B7, B8, B8M, and so on.

ASTM F436 Type 1 Chemical Composition

Elements		Composition, %
Elements		Type 1
Phosphorus, max	Heat	0.040
Phosphorus, max	Product	0.050
Sulfur, max	Heat	0.050
Sulfur, max	Product	0.060

ASTM F436 Type 1 Mechanical Composition

Surface	Through-Hardened	Carburized	Carburized and Hardened
Plain	38 – 45 HRC	69 – 73 HRA	30 HRC or 65 HRA
Hot Dip Galvanized	26 – 45 HRC	79 – 83 HR15N	30 HRC or 65 HRA