Breckland Scientific 2021 Catalogue

Masses -Materials

Masses

a

1 STEEL SLOTTED MASS SETS Made from plated steel alloy. 100g Contains: 1 x 10g Hanger & 9 x 10g Masses. 1kg Contains: 1 x 100g Hanger & 9 x 100g Masses. Cat No. Description

1

b

Price Per

c

MAS-350-100 Steel Slotted Mass Set - 100g

6.32 set

MAS-350-150 Steel Slotted Mass Set - 1kg

13.80 set

d

1 STEEL SLOTTED MASSES & HANGERS Made fromplated steel allloy. The shaft/hole is the same for eachmass/hanger making them interchangeable. Cat No. Description Price Per MAS-400-100 Spare Steel Masses - 10g 0.76 ea. MAS-400-150 Spare Steel Masses - 20g 1.23 ea. MAS-400-200 Spare Steel Masses - 50g 1.86 ea. MAS-400-250 Spare Steel Masses - 100g 1.99 ea. MAS-400-300 Steel Mass Hangers - 10g (For 100g Set) 1.61 ea. MAS-400-350 Steel Mass Hangers - 20g 1.82 ea. MAS-400-400 Steel Mass Hangers - 50g 2.26 ea. MAS-400-450 Steel Mass Hangers - 100g (For 1kg Set) 2.66 ea.

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g

h

Steel Slotted Masses

i

2 SOLID HEXAGONAL MASSES Made from iron with hanging ring. Cat No. Description Mass

2

Price Per

j

MAS-300-100 Hexagonal Iron Mass

50g

3.45 ea.

MAS-300-150 Hexagonal Iron Mass

100g

3.10 ea.

MAS-300-200 Hexagonal Iron Mass

200g

4.61 ea.

k

MAS-300-250 Hexagonal Iron Mass

500g

6.38 ea.

MAS-300-300 Hexagonal Iron Mass

1kg

8.10 ea.

l

MAS-300-350 Hexagonal Iron Mass

2kg

17.97 ea.

Hexagonal Masses

Alloys

m

3 FIELD’S METAL This remarkable alloy melts at just 61°C but, unlike the most familiar low melting point alloys, does not contain lead or cadmium. It is a relatively hard and extremely tough alloy that has a wide variety of scientific and manufacturing applications. It is used for example to fill small tubes for bending without crushing, casting for models and jewellery, and for making precision moulds. Although relatively expensive (because it contains the rare element indium), Field’s Metal makes a fantastic demonstration of how several constituents, each with a much higher melting point, can be combined to produce a fusible alloy. (Note: indium has risen in price recently because of its use in LCD TV screens.) It ‘wets’ and adheres to many surfaces - hence the propensity of Field’s metal to adhere to plastics). Cat No. Description Price Per SMP-200-100 Field’s Metal 11.88 10g 4 MEMORY WIRE This nickel/titanium (NiTi) alloy initially ‘remembers’ that it should be straight. If it is bent into a different shape and then dropped in very hot water (90°C), it springs back to its original straight condition. It will repeat this behaviour any number of times. Supplied by the metre. Cat No. Description Price Per SMS-050-100 Memory Wire 10.20 m 5 SMART WIRE Is a shape memory alloy (SMA) that changes its length with a useful pulling force when a small current is passed through it. A voltage of approx. 3V is sufficient. (Apparatus not included) Cat No. Description Price Per SMS-200-100 Smart Wire 9.40 m

3

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p

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Field’s Metal

4

5

r

s

t

v

w

Memory Wire

Smart Wire (Apparatus not included)

276

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