C&P Conventional Steel

Question 1

What are the 4 steel types?

Answer 1

High carbon: metal working dies( very dense)

Alloy: gears, shafts, tools, some chains & cables (less dense than high carbon steel)

Malleable: i-beams, railroad tracks (structural)

Cast iron: pipes (brittle & easily broken)

Question 2

What are the 3 important factors to conventional steel cutting?

What is the most important?

Answer 2

Type: re factor of 1 or above required

size: size of charge dictated by type and size of target

placement: charge width 1-3 times its thickness
Do not use charge more than 6” thick

Charge to target contact

Question 3

conventional I beam formula

Answer 3

S1: find area
S2: p=.375 x area

Question 4

Conventional high carbon or alloy or

Steel rods, chains cables over 2” formula

Answer 4

S2: P= d2

Question 5

Rule of thumb for steel bars less than 2”

Answer 5

.01” - 1” = 1 lb explosive

1.01” - 1.99” = 2lb explosive

For targets greater than 3” split charge in half and place on either side of target.

Question 6

Rules for railroads

Answer 6

Rails less than 5”= .5 lb tnt

Rails 5” or higher = 1lb tnt

Switches = 1lb tnt

Frogs = 2lb tnt