Is ASTM A194 stainless steel?
The ASTM A194 specification covers a variety of carbon, alloy, and martensitic stainless steel nuts in the size range 1⁄4 through 4 in. These nuts are intended for high-pressure or high-temperature service, or both.
What is A194 Grade 2h?
ASTM A194 Grade 2H is a standard material specification for high tensile nuts and other internally threaded fasteners, made from carbon steel. Grade 2H nuts can be produced by means of hot forging, cold forging or machining from heat treated bar stock.
What is the difference between A563 and A194?
An ASTM A563 grade DH nut may be substituted for an ASTM A194 grade 2H nut under most, but not all, circumstances. A194 Grade 2H nuts undergo additional heat treating and testing processes that A563 Grade DH are not subjected to.
Is Bolt a specification 1367?
The IS 1367 Grade 8.8 specification covers carbon steel bolts and studs ranging from M-6 to M-39 diameter. We use high carbon steel material and high alloy steel raw materials to achieve the required properties in this standard.
What is the difference between 2H and DH nuts?
Grade-2H nuts are recommended for use with bolts in high-pressure and high-temperature applications. Grade-DH nuts are recommended for use with A-490, Type-1 structural bolts. Grade-DH3 nuts are for use with A-490, Type-3 structural bolts.
What does 2H mean on a nut?
The 2H hex nut bears a clear mark on the fastener face, indicating the grade (2H). The grade 2H designation signifies nut formation, including the method of heat treatment, quenching, and temperature range required for tempering.
What does Grade 8 mean for a bolt?
Grade 8 – Grade 8 bolts are made from medium carbon alloy steel. The bolts of this grade feature 6 radial lines. The nominal size of the grade 8 bolts can be from 1/4″ to 1 1/2″. The minimum yield strength of this grade bolt is 130,000 psi.
What type of steel is Grade 8?
medium carbon alloy steel
Grade 8 (SAE J429) is a medium carbon alloy steel with one of the highest tensile strengths available. With a minimum tensile strength of 150 ksi and a minimum yield of 130 ksi, Grade 8 has a higher tensile and yield strength than other steel grades such as Grade 5 and B7.
Is A563 stainless steel?
The ASTM A563 Wing Nuts holds molybdenum, being austenite by low carbon, and is stainless steel with improved inclusion of nickel, chromium, and molybdenum.
What grade is a DH nut?
Grade-DH nuts are recommended for use with A-490, Type-1 structural bolts. Grade-DH3 nuts are for use with A-490, Type-3 structural bolts. Grade-DH3: Carbon: . 02-.
What is an ASTM A194 grade 8m nut?
It also covers austenitic stainless steel nuts in the size range 1/4 in. and M6 nominal and above. These nuts are intended for high-pressure or high-temperature service, or both. ASTM A194 Grade 8M Nut Grades
What is an SA 194 GR 8m nut?
This specification covers the forged and machined internally threaded fasteners that are used in high pressure and high temperature applications. The SA 194 Gr 8M Nut gets the strength, corrosion resistance and the hardness from this material composition.
What is a Grade 8ma nut?
Grade 8MA Standard Specification for Carbon and Alloy Steel Nuts for Bolts for High Pressure or High Temperature Service, or both. ASTM A194 specification covers a variety of carbon, alloy, and martensitic stainless steel nuts in the size range 1/4 through 4 in. and metric M6 through M100 nominal.
What do the markings on A194 nuts mean?
The markings shown for all grades of A194 nuts are for cold formed and hot forged nuts. When nuts are machined from bar stock, the nut must additionally be marked with the letter ‘B’. The letters H and M indicate heat treated nuts.