Metals: Ferrous Metals

Question 1

Ferrous Metals:

Answer 1

iron

contain substantial amount of iron

Question 2

Ferrous Metals: examples

Answer 2

ex. iron, steel, stainless steel, other steel alloy

Question 3

very low carbon content (<.30%),

and substantial amount of slag.

Answer 3

wrought iron

Question 4

qualities of wrought iron:

Answer 4

soft, ductile, resistant to corrosion.

Question 5

typical use of wrought iron:

Answer 5

limited to ornamental work

Question 6

carbon content >2% (high)

Answer 6

cast iron

Question 7

qualities of cast iron:

Answer 7

very hard, but brittle.

Question 8

this type of cast iron:
high silicon content,
plumbing valves/pipes/hardware.

Answer 8

grey cast iron

Question 9

this type of cast iron:
low silicon content,
little use in construction,
until processed to produce malleable iron.

Answer 9

white cast iron

Question 10

this property allows withstand excessive deformations,

due to high tension, w/o failure.

Answer 10

ductility

Question 11

properties of steel:

Answer 11

high strength,
ductility,
uniformity of manufacture.

Question 12

problems of steel:

Answer 12

deform @ fire,

corrosion w moisture.

Question 13

% carbon affects strength/ductility.

> carbon =

Answer 13

+strength,

-ductility.

Question 14

medium-carbon steel (construction):

if phosphorus + sulfur too high,

Answer 14

affect weldability, make brittle.

Question 15

low-carbon steel % carbon:

Answer 15

0.06–0.30%

Question 16

medium-carbon steel % carbon:

Answer 16

0.30–0.50%

Question 17

high-carbon steel % carbon:

Answer 17

0.50–0.80%

Question 18

standards structural steel % carbon.

Answer 18

0.20–0.50%

Question 19

ASTM A36

Answer 19

most common steel.

yield point 36 ksi