How do you read HSS sizes?
HSS are available in round, square, or rectangular shapes. Round shapes are specified using decimal numbers and three decimal points. For example, HSS 5.563 × 0.258 indicates a round HSS with an outside diameter of 5.563” and a wall thickness of 0.258”.
What does HSS mean on structural drawings?
Hollow Structural Sections (HSS) are manufactured hollow steel sections, typically of circular, rectangular, or square cross-section. In the United States, HSS sections conform to either the ASTM Specification A500 or A1085.
How many stiffened section does a HSS rectangular section has?
A square or rectangular HSS has four stiffened elements in it’s cross section.
Is HSS a rolled section?
Square and rectangular hollow structural sections (commonly abbreviated as HSS), are crafted the same way as pipe and tube. The manufacturing process starts with a flat steel plate that is slowly formed into a round or rectangular shape.
How do you calculate the weight of HSS steel?
- A2 = 0.000184 m²
- = 0.000384 m²
- = [ 0.000384 m² × 1m. ]
- V = 0.000384 m³
- The density of mild steel is 7850 kg./m³
- So, the weight of the hollow square MS tube.
- a1 = 0.0025 m²
- a2 = 0.002116 m²
How are HSS sections made?
Manufacture. Square HSS is made the same way as pipe. During the manufacturing process flat steel plate is gradually changed in shape to become round where the edges are presented ready to weld. The edges are then welded together to form the mother tube.
What is compact section steel?
A compact section means that the section can achieve the plastic moment with local buckling on the web or the flange. But a noncompact section is a section that can reach the yields for the lower and bottom fiber only without causing local buckling to the web or the flange.
What is the weight of HSS?
Hollow Structural Sections – Round/Hand Rail
| Size in Inches | Thickness in Inches | Weight Per Foot |
|---|---|---|
| 1.75 O.D. | 0.125 | 1.81 |
| 1.9 O.D. | 0.100 | 1.92 |
| 1.9 O.D. | 0.125 | 2.38 |
| 1.9 O.D. | 0.188 | 3.44 |
What is compact section criteria?
What is the difference between semi compact and compact section?
A compact or a plastic section can only be used as a compression member. A slender section shall not be used as a compression member. A section better than a plastic section can only be used as a compression member. A semi compact section can only be used a compression member.
How do you calculate section weight of steel?
2. Exact weight: The exact weight is calculated as follows: Gx = V * wpm, where V is the volume of the beam body, all features considered. wpm = mweight / A mweight is calculated as above. A is the section area, calculated by Advance Steel from the exact section (with arcs).
What are the properties of HSS?
Broadly, high speed steel excels in hardness and abrasion resistance, with different grades trading for toughness, hot hardness or reduced brittleness. As a result, these alloys see the most use in industrial cutting tools—tool bits, milling cutters, saw blades, drills, taps, broaches and more.
What is a compact steel section?
What is ratio for local buckling?
The subject includes local buckling parameters, namely the slenderness ratio for the flange λF= (Bf/2*Tf) and the slenderness ratio for the web λw= (h/tw), for the plastic stage, the first local buckling parameter, and for limiting slenderness which is the second local parameter.
How do you classify steel sections?
Design Of Steel: Classification Of Cross-Sections
- Class 1 (Plastic) Cross-sections which can develop plastic hinges and have the rotation capacity required for failure of the structure by formation of plastic mechanism fall under this category.
- Class 2 (Compact)
- Class 3 (Semi-compact)
- Class 4 (Slender)
What is the width formula?
If you have the perimeter P and length h , its width is w = P/2−h . If you have the diagonal d and length h , it’s width can be found with w = √(d²−h²) . If the rectangle’s length is not known, you’d need to do some algebra with the quadratic equation to solve for the width.