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108. ICE PITON
QUALITATIVE REQUIREMENTS PICTURE OF
EQUIPMENT
Ice pitons is piece of metal designed to be hammered or screwed in
ice and to be used as means of static belay running belay or as an
artificial aid, the piton consist of a blade or screw and head having
a hole or provided with the hole of such dimension as to allow the
passage of one or two carabineers .specification of general purpose
para winner mountaineering the loads that may be applied to various
type of pitons depended on their designee and the angle between the
body of piton and rope belay.
Material :- steel having following composition of material shall be
used for the manufacture of ice piton.
Constituents Percent
Carbon 0.35 to 0.44
Manganese 0.4 o 0.7
Silicon 0.1 to 0.35
Nickel 2.25 to 2.75
Chromium 0.5 TO 0.8
Molybdenum 0.4 to 0.7
HARDNESS : The Ice pitons shall have a hardness of 350 to 450
HV.
MANUFACTURE,WORKMANSHIP AND FINISH:-
Pitons shall be finished smooth and shall be free from burrs and
cracks and other defect. The holes shall be finished smooth to avoid
scrapping .the pitons shall be given suitable anti-corrosive treatment.
DESIGNATION :- An ice piton shall be designated by commonly
used name of size ( in case of more than size) and IS number.
EXAMPLE :- An ice piton of type D and of nominal size 2 shall be
designated follows.
TEST : a) Strength of Piton :- A load of 13 kn shall be applied to the
piton eye at right angles to the gripping of surface for a periodof 5
minutes. The pull shall be applied gradually. On completion of the
test the pet ion shall not show any show sign of fracture of permanent
deformation.
b) Crack test :- Each ice piton shall be subjected to crack detection
test .
c) Soundness test :- The pet ion shall be laid flat on an anvil or mild
steel block and struck several light blows at different places on the
shank with ball pein hammer,250g.The pet ion shall have no sign of
damage, cracking or fracture on completion of the test. Ice piton D
X 2 IS : 8907.
MARKING :- Ice pet ion shall be shall be suitably embossed or
marked with acid etching with the manufacture name or trade mark.