Esparragos A453 Grade 660, A453 Gr. 660 Stud Bolt, Tuercas hex A453 Grade 660

We are professional A453 Grade 660 Stud bolts and ASTM A453 Gr 660 Hex nuts，ASTM A 286 STUD BOLT manufacturer in China.

Somos fabricantes profesionales de tuercas hexagonales A453 Grado 660 Esparragos y ASTM A453 Gr 660, ASTM A 286 Esparragos en China.

ASTMA453 GR.660 Studs Bolt and Hex Nuts:

A286(ASTM A453 GR.660 ) is a precipitation hardening, austenitic stainless steel designed for use at temperatures up to 1300°F (704°C), where high tensile strength, excellent creep strength and good corrosion resistance are required.

ASTM A453 grade 660 B (Alloy 286, UNS S66286) is a specialty stainless steel. It is used in a variety of industries, including aerospace & heavy industry. Technical Threads can supply ASTM A453 grade 660B studs, bolting,

ASTM A453 / A453M – 17 Standard Specification for High-Temperature Bolting, with Expansion Coefficients Comparable to Austenitic Stainless Steels

This specification covers standards for Grade 660 (Class A, B, C, and D) , Grade 651 (Class A and B), Grade 662 (Class A and B), and Grade 665 (Class A and B) of bolting materials for use in high-temperature service such as fasteners, for pressure vessels and valve flanges. Bolting materials in this specification covers rolled, forged, or hot-extruded bars, and also bolts, nuts, screws, washers, studs, and stud bolts. Materials shall adhere to specified contents of carbon, manganese, phosphorus, sulfur, silicon, nickel, chromium, molybdenum, tungsten, titanium, columbium, aluminum, vanadium, boron, and copper. Materials shall be subjected to tension, stress-rupture, and hardness tests. Materials shall conform to yield strength, tensile strength, elongation, reduction of area, Brinell hardness, and Rockwell hardness requirements. Hardening and solution treatment requirements for each material class are also given.

Alloy A286 (AMS 5731/ AMS 5732 / AMS 5737 / AMS 5525)

Technical Data Sheet

A286 is an iron-nickel-chromium alloy with additions of molybdenum and titanium. A 286 is one of the most popular high temperature alloys. As one of the austenitic alloys it maintains good strength and oxidation resistance at temperatures up to 1300ºF. Due to it’s high strength and excellent fabrication characteristics A286 is used in various components of aircraft and industrial gas turbines. A286 is also widely used in the offshore oil and gas industry where the components are subject to high levels of heat and stress.

Alloy A286 bar can be solution treated at the temperatures detailed below, rapid cooled and then age hardened at 1325ºF (720ºC) for 16 hours and air cooling. The 1800ºF (980ºC) solution treatment produces the highest creep-rupture strength in age-hardened material whereas the 1650ºF (900ºC) treatment results in improved ductility and room temperature strength. If you require further information regarding A286 contact Sales.

A286 Solution Treated
A286 Solution Treated is covered by specification AMS 5731 (AMS 5732 Capable) and BS HR52

Solution Heat Treatment: 1800ºF ± 25 (982 ± 14ºC) 1 hour, water/oil quench (AMS)
Hardness: ≥ 217HB or 220 HB (BS), ≥201HB (AMS)

A286 Solution Treated and Aged (1800ºF)

A286 Solution Treated and Aged is covered by specifications AMS 5732, BS HR51, ASTM A638 660 Type 2, ASTM A453 660 Class B

Solution Heat Treatment:
980ºC ± 10 for > 1 hour, followed by air cool (BS)
1800ºF ± 25 (982 ± 14ºC) 1 hour, water/oil quench (AMS)

Precipitation Heat Treatment:
720ºC ± 10 > 16 hours, followed by air cool (BS)
1300-1400 ºF (704-760ºC) hold not less 16 hours, air cool (AMS)

Hardness:
248 – 341 HB or 260 – 360 HV (BS)
248-341 HB (AMS)

A286 Solution Treated and Aged (1650ºF)

A286 Solution Treated and Aged is covered by specifications AMS 5737, ASTM A638 660 Type 1, ASTM A453 660 Class A and EN-2303 (under 4″ Bar)

Solution Heat Treatment:
1650ºF ± 25 (899 ± 14ºC) 1 hour, water/oil quench (AMS)

Precipitation Heat Treatment
1300-1400 ºF (704-760ºC) hold not less 16 hours, air cool (AMS)

Hardness
277-363 HB (AMS)

Typical Mechanical Properties

NICKEL ALLOYS

How to order our ASTM A453 Gr 660 Stud bolts?

M16 *160mm ASTM A453 Gr 660 Cl.A Espárrago y tuerca A453 Gr 660 Cl.A
1 1/2" * 12 pulgadas de largo,8UN, ASTM A453 Gr 660 Cl.A Espárrago y tuerca A453 Gr 660 Cl.A