Each steel alloy has it's own stress curve and tolerances. The design of something made of steel and the calculation of the stresses involved has to take into account certain safety factors depending on what is being made (a bridge for transporting goods and people has a different safety factor than a frame for a table!)
800n/mm2
Steel and stainless steel tend to weigh around the same, however, stainless steel can sometimes be a bit lighter.
Stainless Steel 316, a type of stainless steel
stainless steel
steel isn't as refined but stainless is well stainless and shiny oohlala hot bod Stainless steel is an alloy (mixture) that has chromium mixed in. The chrome makes ordinary steel harder, more brittle, and more resistant to rust and stains, hense, stainless steel.
Allowable stress would normally refer to design using Allowable Strength Design, also known as working strength design. In this the allowable stress is usually a fraction of the yield strength and can be different for uniform tension and bending. Typically mild steel has a yield strength of about fy=250MPa with allowable stresses in Tension, 0.6fy=150MPa Bending, 0.66fy=165MPa
The maximum allowable shear stress for stainless steel 304 is typically around 50,000 psi or 345 MPa. However, actual values may vary depending on specific grades, processing, and applications. It is important to consult relevant standards and specifications for precise information.
70.4 megapascle
800n/mm2
Fy = 235Mpa Fu = 400Mpa
Milled steel is a cheap form of iron-carbon alloy that is subject to corrosion but is malleable and does not suffer from the brittleness issues of Stainless steel. Stainless steel contains additional compounds that reduces atmospheric and hydro-corrosion and increases the hardness of the steel. This makes it more expensive, less malleable and is more likely to suffer from stress fatigue and stress fractures
A factor of safety against yield is applied to design stress Yield Stress/ Design Stress = Factor of safety The factor of safety varies for different industries; 1.5 is used in structural steel design for buildings; 1.25 or even 1.1 for aircraft/space systems
I searched for properties of 1" x 3" 11 gauge rectangular steel tubing, but that is an odd size. We will have to calculate the section modulus (excluding corner radius): S = bd^3 - b1d1^3/6d b = 1" d = 3" b1 = 1 - 2x0.091 = 0.818 d1 = 3 - 2x0.091 = 2.818 S = [(1 x 3^3) - (0.818 x 2.818^3)] / (6 x 3) = 0.483 in^3 M (maximum bending moment) = [P (point load) x l (length)] / 4 Solving for P: P = 4M/l M = s x S Where: s (allowable bending stress) = .55 x yield strength of steel To be conservative we will assume that the steel you have is 30,000 psi M = .55 x 30,000 x 0.483 = 7,969 in-lb P = 4 x 7,969 / 72 in = 442#
The allowable stress for S355 steel typically depends on its application and design standards. In general, the yield strength of S355 is around 355 MPa, and the allowable stress is often taken as a fraction of this value, usually around 0.6 to 0.7 times the yield strength, depending on the safety factors applied. For structural applications, this can translate to an allowable stress of approximately 210 to 250 MPa. Always consult relevant design codes for precise calculations.
Yep, you can weld steel to stainless and you can weld stainless to steel. You can use steel or stainless welding rod in either case but the steel or steel welding rod will of course rust.
No, Stainless steel is not porous. Steel how ever is.
stainless steel