Unit 7- Structural Steel exam question and answer100%correct

Unit 7- Structural Steel exam question and
answer100%correct
Division 5 - - Structural steel

- Miscellaneous Metals

- Ornamental metal



Advantages of Steel Construction - - Fast

- Precise

- Strong

- Long spans

- Strength

- All weather

- Few tools



Disadvantage of steel Construction - - Corrosion

- Galvanic corrosion

- Fireproofing

- Frame only

- A lengthy process

- Taller floor to floor



Ferrous Metal - Any iron -based metal

, Wrought Iron - A form of iron that is soft, tough, and fibrous in structure, containing
about 0.1 percent carbon and 1-2 percent slag.



Steel - Iron with a controlled amount of carbon, generally less than 2 percent.



Mild Steel - Ordinary structure steel, containing less than three-tenth of 1 percent
carbon.



Weathering Steel - A steel alloy that forms a self-protecting rust layer when exposed to
the atmosphere.

- ASTM A588

- Cor-Ten (Trade Name)



Certificate - Sample of steel to become steel



W12x40 - - Wide flange shape

- Normally 12" deep

- Weight= 40 pounds per linear foot



C10x30 - - Channel

- 10" deep

- 30 pounds per linear foot

- Bracing, lentals, Truss members, short beams



L6x4x1/4 - - Angle

- 6" leg & 4" leg