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𝐁𝐨𝐥𝐭 𝐆𝐫𝐚𝐝𝐞𝐬 (8.8) 𝐯𝐬. (10.9)
𝗕𝗼𝗹𝘁 𝗚𝗿𝗮𝗱𝗲 (8.8)
Grade 8.8 bolts are made of medium carbon alloy steel.
They have a minimum tensile strength of 800 MPa and a minimum yield strength of 640 MPa.
These bolts are known for their moderate strength and durability.
They are commonly used in machinery, automotive parts, and general engineering applications.
𝗕𝗼𝗹𝘁 𝗚𝗿𝗮𝗱𝗲 (10.9)
Grade 10.9 bolts are made of alloy steel and have a higher strength than Grade 8.8 bolts.
They have a minimum tensile strength of 1000 MPa and a minimum yield strength of 900 MPa.
These bolts are specifically designed for applications that require high strength and reliability.They are commonly used in structural steel connections, heavy machinery, and automotive engine components.
𝗦𝗼, 𝘄𝗵𝗮𝘁 𝘀𝗲𝘁𝘀 𝗚𝗿𝗮𝗱𝗲 (10.9) 𝗯𝗼𝗹𝘁𝘀 𝗮𝗽𝗮𝗿𝘁 𝗳𝗿𝗼𝗺 𝗚𝗿𝗮𝗱𝗲 (8.8) 𝗯𝗼𝗹𝘁𝘀?
Grade 10.9 bolts have higher tensile and yield strength, allowing them to withstand greater loads and stresses.
They are ideal for heavy-duty applications.
Grade 10.9 bolts are more durable and resistant to fatigue.
They can withstand challenging conditions and provide long-lasting performance.
Due to their higher tensile strength, Grade 10.9 bolts can achieve a higher preload.This provides better clamping force and improves joint integrity.
Grade 10.9 bolts are often used in critical or safety-sensitive applications where strength and reliability are vital.
Grade 8.8 bolts are suitable for general-purpose applications.
Source:Karim Nabil
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