Is A4 70 high tensile?

The A4-70 grade has 700MPa tensile strength and A4-80 has 800MPa minimum tensile strength….

Table of Contents

Product name	A4-70 Stainless Steel Bolts
DIN Standard	B.S. DIN933 DIN931 DIN934 DIN912 DIN603 DIN6923
Surface treatment	Passivation /plain

What is the difference between A4 and A4-80 stainless steel?

A4 has a higher resistance to corrosion than A2. A4-80 and A2-80 have an ’80’ on the end to indicate the Minimum Tensile Strength (N/mm²). For example A4-80 must have a minimum tensile of 800 N/mm² and A2-80 would be the same (800 N/mm²).

What is 8.8 bolt tensile strength?

800
Bolt Grade Markings and Strength Chart

Grade and Material	Mechanical Properties
Min. Tensile Strength (psi)
Class 8.8 Medium carbon steel, quenched and tempered	800
830
Class 10.9 Alloy steel, quenched and tempered	1040

Is A4 Stainless stronger than A2?

A2 vs A4 stainless steel strength Whereas grade A4 is stronger than grade A2, and its tensile properties are almost similar to alloy steel grade 8.8.

What does A4 80 mean?

The “80” denotes the minimum tensile strength to be met by the material (actually the bolt, screw or nut after manufacture). Therefore, A4-80 is an austenitic, acid proof stainless grade (usually 316 material – 316 or 316L) which has been cold worked to provide a minimum tensile strength of 800N/mm² (MPa).

Is A4 equivalent to 316?

A4 Stainless is often referred to as 316 or 18/10 stainless. As in A2 above, the numbers 18/10 refer to the chromium and nickel content- 18% chromium and 10% nickel.

What does A4-80 mean on a bolt?

What is an A4-80 bolt?

A4-80 Stainless Steel Fastener is recognized by 2 ways, A4 which describe it as being from SS 316 family and 80 which classifies its strength. When we say A4-80 it generally means that the bolt / screw is from SS 316 grade and has an ultimate tensile strength as 80 kg or 800 n/mm2.

Is Grade 8 or 8.8 Stronger?

Table 1.

Grade/Class	Strength
Grade 5	Medium strength.
Grade 8	High strength.
Metric Class 4	Similar to Grade 2.
Metric Class 8.8	Similar to Grade 5.

What does A4 70 mean on a bolt?

The “70” denotes the minimum tensile strength to be met by the material (actually the bolt, screw or nut after manufacture). Therefore, A4-70 is an austenitic, acid proof stainless grade (usually 316 material – 316 or 316L) which has been cold worked to provide a nimimum tensile strength of 700N/mm² (MPa).

What does A4 mean on a bolt?

A4 stainless steel fasteners are typically known as marine grade stainless fasteners due to their resistance to salt water corrosion and can be found in a number of water-based applications. It is also resistant to salt spray.

Is A4-80 the same as 316?

Therefore, A4-80 is an austenitic, acid proof stainless grade (usually 316 material – 316 or 316L) which has been cold worked to provide a minimum tensile strength of 800N/mm² (MPa).

What is the tensile strength of an A4-80 bolt?

Depending on the material make, the minimum tensile strength can vary. The hardness of the a4-80 ss bolt is 95HR B in the rockwell scale and it is 217HB in the Brinell hardness scale. There are different types of fasteners in this range such as the A4-80 Threaded Rod and screws as well.

What is an A4 80 bolt made of?

The A4-80 Hex Bolt is made up of usually 316 or 316L grades of stainless steels. And the bolts can operate under a temperature range of 425 to 860 degrees Celsius. The A4-80 Stainless Bolt has carbon, silicon, manganese, phosphorus, sulfur, chromium, molybdenum, nickel, copper and nitrogen in different quantities.

What is A4-80 stainless steel?

What is the PSI of Grade 8 steel?

827 Class 8.8 (AS 1110) High Tensile or High Strength Steel—Structural AS 1252 SAE Grade 8 (AS 2465( (High Tensile) 150 000 1034 Class 10.9 (AS 1110) High Tensile Conversion Factors 1000 PSI (lbf/in²) = 6.8948 MPa 1 Mpa = 145.038 PSI(lbf/in²)