ISO is the current standard for metric Ramiz- The AISC says that galvanized A bolts shall never be reused, whereas for plain finish bolts they can be used at the discretion of the project engineer. We are not aware of any such guidelines for 8. Is it possible to use bolt classe 8. None of the three will have any inherent corrosion resistance unless you choose to coat them. Tom- Any material substitutions should be approved by the project engineer.
That said, A bolts and Ashraf- A B7 is mechanically similar to 8. We do not see an issue in replacing 8. Hello Dave. What is the advantage of using bolts 8. Which process would hydrogen embrittlement be the most affected. We want to use these bolts for structural steel bases. George — 8. They can be hot dip galvanized without embrittlement issues.
Dacromet is also allowed, but it is being discontinued due to ROHS concerns. Hareshchandra — We are not very familiar with ISO , but we do believe there are many grades 4. Nisa- We are sorry, but are unsure of what you are asking. We sell and can manufacture inch-dimensioned products. We do not handle metrics nor do we know much about them. Application is Deaerator Columns, for bolting Columns to module structure:. DH for Nuts. Bilal- For the bolts, those grades are very similar from a chemical and mechanical standpoint, but any substitution should approved by the project engineer as there are subtle differences between the two.
So Im worry that Abdelaziz- You are correct, B7 is formulated for high temperature applications, whereas Leon- As long as the C material you chose to use meets the mechanical and chemical requirements of 5.
C is typically furnished as chemicals only, so you may need to test it to assure the proper mechanical requirements are met. Remis- You would need to have that substitution approved by the project engineer. There are similarities between those bolts, but some differences as well. Hello Dane, Could you please help me. Can a Grade 8. Many thanks in advance, regards, David. A charpy test would tell you if the 8. Chris- Apologies, but we are unsure what CTE means.
Prashun- Apologies, but we are not familiar enough with all the various ISO standards to know which grade is the closest equivalent. Eman- Apologies but we are not familiar enough with ISO fastener standards to know what the equivalent would be. KK-No, A B7 is a high strength bolting material designed for high temperature, high pressure applications.
Grade 8. They should not be substituted without approval from the project engineer. Are you the contact person for your company? Home Grade 8. Table of contents. Eastern origin possible on request. Staindard of Hsfg Grade 8. PED approved Grade 8. Size Weight M2 BS grade 8. High Tensile 8. Hsfg Grade 8. Manganese contributes to increase the steel firmness, strength and wear resistance. Phosphorus reduces the steel plasticity and toughness and appearing cold brittleness.
Meanwhile, It can significantly increase the strength of steel, and improve the atmospheric corrosion stability. Sulfur makes the hot brittleness of steel high. What is the chemical composition of EN Class 5. For EN Class 5. Physical properties of EN Class 5. Portal-type Processing Center. Floor-type Milling-boring Machine. E-mail: [email protected].
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