Metal G
Wrought iron was once a very common material for what?
Structal use PG6
BCC stands for what FIG 7
Body-centered cubik
PG 25
In pure iron at temps above 96°C / 1670°F the atoms are arranged how
In a fcc pattern or lattuce
PG 25
Do NOT Stack or store stainless steel with
Carbon steel
PG 64
What are two main considerations when welding ferritc stainless steel
Minimizing grain growth
Per venting sensitization
PG 57
What is the true aging temp of alloy 6063
175°C or 347°F
PG 75
Two major groups of low alloy steels are
Low-alloy, high strength low-alloy
PG 48
A20/A20M are standard specifications for what
Steel plates for pressure vessel
PG 12
Most aluminum is used in the form of an alloy the alloys fall into 2 broad groups
Wrought alloys and casting alloys
Pg72
What is longitudinally
Running length wise or pertaining to length
PG 18
At cooling rates that are between slow cooling and quenching in water various amount of what form
Ferrlte peartree martensite
PG 28
Grain is
A crystal structure with a research pattern of atoms extending across it in a polycrystalle material
PG18
Nickle added in amounts of 1% improves what
Impact property at modest temps
PG 49
Each steel in the system is typically given a 4 digit numerical code that relates to it composition what do the digits indicate?
List all in order
First: The major class
Second: The sub class carbon content
Thrid: and forth the carbon content in hundredths of a persent
Pg11
What are the 4 types of distortion
Bending, buckling, angular, shrinkage
PG 46
What alloying elements help with atmospheric corrosion resistance
LIST ALL OF THEM or NO points
Copper, chromium, nickle, tantalum
PG 30
The time required for sensitisation to occur depends on the carbon content of the stainless steel
Peak temp during the welding time at peak temp
PG 55
Duplex stainless steel microstructure is a mixture of austenitic and forritc grains what is the true ideal mixture
50/50
PG 60
At 938°C / 1688°F there will be no evidence of what In carbon steel
Carbon
PG 26
The specifications for most solid wires and metal core wires limit both sulphur and phosphorus to what
0.03%
PG 57
Sand casting has an ultimate MPA of what
207
PG 69
I'm excessive amounts of sulphur may lead to
Lot shortness
Pg48
Aluminum alloy AA-6061 conducts heat 43% faster then.........................?
AA-5083
pg 64
In 300 series austenitic stainless steels sulphur content is melted to
0.045%
PG 57
Surface damage such as ATC strikes and scratches may also act as
Corrosion initiation sites
PG 65