ASTM A194 Grade 7 Nuts

SA 194 Gr 7 Heavy Hex Nuts and Washer manufacturer in India

ASTM A194 Grade 7 Nuts belong to a specification for chromium molybdenum alloy steel that are heat treated and internally threaded. Viha Steel & Forging is a leading manufacturer and supplier of the different grades of the ASME SA 194 Gr 7 Hex Nut and others. The hex nuts are very common in this grade as they are much suitable for high torque tightening. There are different grades in the A194 specification such as AISI 4140, 4142, 4245 and 4145H. The ASTM A194 Gr 7 Heavy Hex Nuts are produced with hot forging, cold forging and machining from heat treated bar stock.

The material is made up of carbon, manganese, phosphorus, sulfur, silicon, chromium and molybdenum. The different fasteners such as the ASTM A194 Grade 7 Washer and others are quenched and tempered at 595 degrees Celsius and the Brinell hardness increases up to 248 to 327BHN. The fasteners sizes range from ¼ inches to 1 ½ inches with threads ranging from 8 threads per inch to 20 threads per inches.

The SA 194 Grade 7 Nuts range from M6 to M100 with tensile strength ranging from 150ksi to 175ksi. The application of these fasteners is seen in the oil and gas, petroleum, chemical, pharmaceutical and power generation industries. The astm a194 grade 7l nuts can also be applied in coolers, heaters, heat exchangers, condensers and in boiler grade applications. As a leading manufacturer of the different types of these fasteners, we can supply any of your order requirements. Please feel free to contact us for the different fasteners such as the SA194 Grade 7 Flat Washer and the prices.

 

 

 

 

While A194 Grade 4 and A194 Grade 7 nuts are precisely indistinguishable and have similar planned applications, the lone contrast is the compound qualities (also known as steel used to produce). Evaluation 4 was made to be an ease choice to Grade 7 by utilizing a cheaper crude material. Tragically, this didn't work out. The thought was that the material used to make Grade 4 was less expensive, and subsequently the nuts would be less expensive. Practically speaking that was not the situation. Since the steel used to fabricate Grade 7 nuts is mass created and the material used to make Grade 4 was not, Grade 7 nuts stayed less expensive, consequently crushing the whole purpose behind Grade 4 to exist

Chemical Composition Difference

 

 

 

 

**All measurements in millimeters**