Table of Contents
What stainless steel is used for bolts?
303 and 304 Stainless are the most commonly listed grades, the standard grade for stainless fasteners. They are corrosion-resistant and durable. They are often used in marine applications in freshwater environments but will not work as effectively in a salt-water environment as 316 stainless.
What grade strength is stainless steel bolts?
The vast majority of stainless steel fasteners available are produced to ISO 3506 Class 70 (this designates a minimum tensile strength of 700 MPa) and are marked as such. If there is no marking it should be assumed the product is Class 50 (minimum tensile strength of 500 MPa).
Is stainless steel good for bolts?
Stainless Steel Fasteners are, most importantly, corrosion resistant. They have an excellent life cycle, are environmentally friendly and are 100% Recyclable. They are also resistant to high heat as well as extremely cold temperatures making stainless steel fasteners the material of choice for almost any application!
Can 304 and 316 be used together?
Galvanically mixing 304 and 316 is a non-issue, the surfaces have the same potential.
What grade of bolt is 304 stainless steel?
Grade 18-8
Grade 18-8 – this is also called the 300 series of stainless steel and has approximately 18% chromium and 8% nickel content. The 18-8 series includes fasteners which are made of 302, 302HQ, 303, 304, 305, 384, XM7 and similar grade variables with close chemical compositions.
Which is better ss304 or ss316?
For instance, 316 stainless steel is more resistant than 304 to salt and other corrosives. So, if you are manufacturing a product that will often face exposure to chemicals or a marine environment, 316 is the better choice.
What grade is a 316 stainless steel bolt?
STAINLESS STEEL MATERIAL GRADE
| Grades | European Number | UNS |
|---|---|---|
| 304 L | 1.4306 | S 30403 |
| 316 | 1.4401 | S 31600 |
| 316 L | 1.4404 | S 31603 |
| 310 | 1.4841 | S 31000 |
Is 316 stainless steel high tensile?
Another common variety of austenitic stainless steel, grade 316 stainless has a high tensile strength of 579 MPa (84 ksi) and a maximum use temperature of around 800˚C (1,472˚F).
Are there different grades of stainless steel bolts and nuts?
Over the past few years we have manufactured many different kind of stainless steel grades of bolts and nuts, however the above grades mentioned in the table are the main grades which we are manufacturing consistently.
What are the requirements for stainless steel bolts and screws?
1.1 This specification covers the requirements for stainless steel bolts, hex cap screws, and studs 0.25 to 1.50 in., inclusive, in nominal diameter in a number of alloys in common use and intended for service applications requiring general corrosion resistance.
What is austenitic stainless steel bolts?
Austenitic Stainless Steel Bolts. Stainless Steel Bolts with higher amounts of chromium and nickel as compared to other grades are referred as austenitic stainless steel. This steel is generally non-magnetic in nature. Austenitic steels have high corrosion resistance and cannot be hardened by heat treatment.
What grade of steel should I use for my fasteners?
(16%-18% Chrome, 10%-14% Nickel, .08% Maximum Carbon, 2.00% Maximum Molybdenum) – This grade of steel is used and recommended for applications in severe, harsh or marine environments. Its corrosion resistance is greater than 18-8 stainless, which is why we recommend using 316 stainless steel fasteners for salt-water application.