Is Grade 8 or 10.9 stronger?

Is Grade 8 or 10.9 stronger?

Class 10.9 is stronger than class 8.8. It is commonly found in high strength automotive applications. Class 10.9 is similar to grade 8. A low carbon steel for general use.

Is B7 harder than Grade 8?

It is also quenched and tempered at 800 F leading to its strength. Grade 8 has 0.28-0.55% carbon, 0.030% max phosphorus, and 0.050% max sulfur....Grade 8.

GRADE	ASTM A193 B7 (Chromium Molybdenum)	GRADE 8 (Heat Treated After Threading)
ROCKWELL HARDNESS	C26-C32	C33-C39

What is the strongest bolt grade?

grade 8 bolt A grade 8 bolt is the highest grade SAE bolt. Grade 8 bolts have a minimum tensile strength of 150,000 PSI.

Is a Grade 10 bolt stronger than a grade 8 bolt?

Each grade has a specific bolt strength. No matter the system used to grade the bolts, the higher number means the stronger the bolt. For most home and automotive applications, you won't need anything more than a grade 8 bolt strength or metric class 10.9.

Is B7 or Grade 8 stronger?

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. It is also quenched and tempered at 800 F leading to its strength. ... The preload or thread tension in a fastener is higher with Grade 8 quality steel.

What bolt is stronger than Grade 8?

Grade 9 bolts are ideal for heavy-duty applications and are also often used in heavy machinery such as bulldozers. Not only are these bolts considerably stronger than they're grade 8 counterparts, but they are also considerably more resistant to corrosive elements as they are made with yellow zinc chromate.

Are m10 and 3/8 the same?

That said, they are very close, the 3/8" bolt is about 0.019" smaller and the pitch's are very close so the 3/8 -16 bolt will thread in the 10mm x 1.5 but the 10 x 1.5 bolt will not fit the 3/8 but..

Are Grade 8 bolts more brittle than Grade 5?

• It is true that grade 8 bolts are more brittle than grade 5. In general (although not always the case), steels that have a higher strength are less ductile . Grade 8 bolts have a higher strength and, therefore, would require fewer bolts in a joint than grade 5.

What is the shear strength of a Grade 8 bolt?

• Shear strength of a grade 8 bolt in good condition is 91,000 psi.

What is bolt grade B7?

• B7 Bolts. The B7 grade bolts are a heat treated chromium-molybdenum steel. This grade of bolt is commonly used for fastening of medium high temperature service materials.

What is SAE grade 8?

• Grade 8 according to SAE J429 has a minimum ultimate tensile strength of 150 ksi, which is equivalent to 1040 MPa, which is the minimum ultimate tensile strength of 10.9 fasteners according to ISO 898-1.