NM GS24 STRUCTURAL STEEL ERECTION
EXAM 2026 PROFESSIONAL PREPARATION
WORKBOOK
◉ An alloy is a combination of metals or of a metal and another
element. What is steel an alloy of? Answer: iron and carbon
◉ What is the maximum amount of carbon present in steel? Answer:
2%
◉ Briefly explain the production of steel. Answer: raw materials
(iron ore, coal, limestone)
heat in blast furnace (1600degC)
pig iron is molded (very high carbon contents. 4 - 5%)
oxygen or electric arc furnace
Refining Facility
continuous casting
,◉ After pig iron is formed what is the next step Answer: reduce
carbon levels through refining processes
◉ what does an oxygen furnace do? Answer: removes excess carbon
& other impurities
- the carbon is oxidized to carbon monoxide gas, which can be after
cleaning can be used as gas
◉ What is Hot Rolling Answer: Hot rolling is mill process which
involves rolling the steel at a high temperature
slabs are used to make flatter products
blooms and billets used to make long products
blooms & billets are large square cross sectional slabs of steel
(blooms are larger than billets)
◉ What is cold rolling Answer: rolling after cooling that is used for
strengthening
, most structural steel is not cold rolled
common for secondary structural steels
◉ Why is the cooling of steel carefully controlled? Answer: because
the rate of cooling has a significant affect on the microstructure
what are some methods of cooling
-water spray, water vapour or air dry methods
◉ Other processes? Answer: annealing
tempering
electroplating
hot dip galvanizing
paint coatings
◉ what is annealing? How does annealing affect steel? Answer:
annealing is controlled slow cooling after heating.
EXAM 2026 PROFESSIONAL PREPARATION
WORKBOOK
◉ An alloy is a combination of metals or of a metal and another
element. What is steel an alloy of? Answer: iron and carbon
◉ What is the maximum amount of carbon present in steel? Answer:
2%
◉ Briefly explain the production of steel. Answer: raw materials
(iron ore, coal, limestone)
heat in blast furnace (1600degC)
pig iron is molded (very high carbon contents. 4 - 5%)
oxygen or electric arc furnace
Refining Facility
continuous casting
,◉ After pig iron is formed what is the next step Answer: reduce
carbon levels through refining processes
◉ what does an oxygen furnace do? Answer: removes excess carbon
& other impurities
- the carbon is oxidized to carbon monoxide gas, which can be after
cleaning can be used as gas
◉ What is Hot Rolling Answer: Hot rolling is mill process which
involves rolling the steel at a high temperature
slabs are used to make flatter products
blooms and billets used to make long products
blooms & billets are large square cross sectional slabs of steel
(blooms are larger than billets)
◉ What is cold rolling Answer: rolling after cooling that is used for
strengthening
, most structural steel is not cold rolled
common for secondary structural steels
◉ Why is the cooling of steel carefully controlled? Answer: because
the rate of cooling has a significant affect on the microstructure
what are some methods of cooling
-water spray, water vapour or air dry methods
◉ Other processes? Answer: annealing
tempering
electroplating
hot dip galvanizing
paint coatings
◉ what is annealing? How does annealing affect steel? Answer:
annealing is controlled slow cooling after heating.
