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TECHNICAL GUIDE

PUNCHING TOOLS

Vol.12 MATERIAL PROPERTIES

TECHNICAL GUIDE

PUNCHING TOOLS

Vol.12 MATERIAL PROPERTIES

As for the materials (workpieces) to be processed by the turret punch press, this time,
we summarized non-ferrous metals, following the previous steel.

ALUMINIUM AND ALUMINUM ALLOY

Aluminum and aluminum alloy is lightweight and resistant to rust,
so it is used for various purposes in various fields such as lighting fixtures, electric appliances, building materials, various containers, accessories and aircraft materials.

ALUMINIUM AND ALUMINUM ALLOY

THE MECHANICAL PROPERTIES OF ALUMINUM AND ALUMINUM ALLOY(Excerpt from JIS H4000:1988)

Symbol Temper Tensile Strength N/mm² Elongation % Character and application example
A 1050 P 0 60 - 100 Over 15 - 30 Low strength because of pure aluminum,
but good for forming and corrosion resistance.
Reflector, Lightning equipment, Ornaments and so on.
H12 80 - 120 Over 2 - 9
A 1100 P 0 75 - 110 Over 15 - 30 Low strength, but good for forming, corrosion resistance and welding.
Building materials, electrical appliances, containers and so on.
H12 95 - 125 Over 2 - 9
A 2014 P 0 under 215 Over 10 - 16 Heat treated alloy with high strength.
Aircraft materials, various structural materials, etc.
T4 Over 410 Over 14
A 2017 P 0 under 215 Over 12 Heat treated alloy with high strength.
Aircraft materials, various structural materials, etc.
T4 Over 355 Over 12 - 17
A 3003 P 0 95 - 125 Over 18 - 25 A little bit higher in strength than 1100 and good in formability,
weldability and corrosion resistance.
H12 120 - 155 Over 2 - 9
A 5052 P 0 175 - 215 Over 14 - 20 Typical alloy with moderate strength.
H12 215 - 265 Over 3 - 11
A 6061 P 0 under 145 Over 14 - 18 It has good corrosion resistance and is mainly used as structural material for bolt and rivet connection.
T6 Over 295 Over 8 - 10
A 7075 P 0 under 275 Over 10 One of the alloys with the highest strength in aluminum alloy.
It is also used as a mold material for injection tooling.
T6 Over 530 Over 7 - 8
Symbol Temper Tensile Strength N/mm² Elongation %
A 1050 P 0 60 - 100 Over 15 - 30
H12 80 - 120 Over 2 - 9
Character and application example
Low strength because of pure aluminum,
but good for forming and corrosion resistance.
Reflector, Lightning equipment, Ornaments and so on.
Symbol Temper Tensile Strength N/mm² Elongation %
A 1100 P 0 75 - 110 Over 15 - 30
H12 95 - 125 Over 2 - 9
Character and application example
Low strength, but good for forming, corrosion resistance and welding.
Building materials, electrical appliances, containers and so on.
Symbol Temper Tensile Strength N/mm² Elongation %
A 2014 P 0 under 215 Over 10 - 16
T4 Over 410 Over 14
Character and application example
Heat treated alloy with high strength.
Aircraft materials, various structural materials, etc.
Symbol Temper Tensile Strength N/mm² Elongation %
A 2017 P 0 under 215 Over 12
T4 Over 355 Over 12 - 17
Character and application example
Heat treated alloy with high strength.
Aircraft materials, various structural materials, etc.
Symbol Temper Tensile Strength N/mm² Elongation %
A 3003 P 0 95 - 125 Over 18 - 25
H12 120 - 155 Over 2 - 9
Character and application example
A little bit higher in strength than 1100 and good in formability,
weldability and corrosion resistance.
Symbol Temper Tensile Strength N/mm² Elongation %
A 5052 P 0 175 - 215 Over 14 - 20
H12 215 - 265 Over 3 - 11
Character and application example
Typical alloy with moderate strength.
Symbol Temper Tensile Strength N/mm² Elongation %
A 6061 P 0 under 145 Over 14 - 18
T6 Over 295 Over 8 - 10
Character and application example
It has good corrosion resistance and is mainly used as structural material for bolt and rivet connection.
Symbol Temper Tensile Strength N/mm² Elongation %
A 7075 P 0 under 275 Over 10
T6 Over 530 Over 7 - 8
Character and application example
One of the alloys with the highest strength in aluminum alloy.
It is also used as a mold material for injection tooling.

＜Note＞1 N/mm² ≒ 0.102kgf/mm²

ADVICE ON ONE POINT

Aluminum is a material with relatively good workability, but because of its softness,
marks like a guide may stick to the workpiece or burrs may occur during punching.
Adjustment such as weakening the force holding the work (spring strength) or reducing the clearance may be necessary.
(Please refer to Technical Information Vol. 22)

COPPER AND COPPER ALLOY

Copper and copper alloys have good electrical and thermal conductivity and are beautiful in gloss,
so they are used for electrical appliances, wiring equipment, building tools, accessories, etc.

COPPER AND COPPER ALLOY

THE MECHANICAL PROPERTIES OF COPPER AND COPPER ALLOY(Excerpt from JIS H3100 H3110 H3130:1992)

Name Symbol Temper Tensile Strength N/mm² Elongation % Character and application example
Tough Pitch copper C 1100 P 0 Over 195 Over 35 It has excellent electrical and thermal conductivity, good ductility, drawing workability and corrosion resistance.
1/2 H 245 - 315 Over 15
Tombac C 2200 P 0 Over 225 Over 35 The color is beautiful, ductility; drawing workability and corrosion resistance are good.
1/2 H 285 - 365 Over 20
Brass C 2600 P 0 Over 275 Over 40 - 50 It has excellent in ductility and deep drawing processability and good in plating properties.
1/2 H 335 - 440 Over 28
C 2680 P 0 Under275 Over 40 - 50 Good ductility, drawability, and plating properties.
1/2 H 355 - 440 Over 28
Free Cutting Brass C 3560 P 1/4 H 345 - 430 Over 18 Especially excellent in machinability and good punching property. Clock parts, gears etc.
H Over 420 ―
C 3710 P 1/4 H 375 - 460 Over 20 Especially excellent punching property and good machinability.
Clock parts, gears etc.
H Over 470 ―
Phosphor bronze C 5111 P 0 Over 295 Over 38 Good spreadability, fatigue resistance and corrosion resistance.
Switch, lead frame, connector, etc.
1/2 H 410 - 510 Over 12
Cupronickel C 7060 P F Over 275 Over 30 Corrosion resistance, especially sea water resistance is good; it is suitable for use at relatively high temperature.
Nickel Silver C 7351 P 0 Over 325 Over 20 Luster is beautiful, ductility, fatigue resistance,
corrosion resistance are good.
1/2 H 390 - 510 Over 5
Copper beryllium alloy for springs C 1720 P 0 410 - 540 Over 35 Good corrosion resistance.
High performance springs, springs for electric appliances, etc.
1/2 H 590 - 695 Over 5
Phosphor bronze for springs C 5210 P 1/2 H 470 - 610 Over 27 Good ductility, fatigue resistance and corrosion resistance.
EH 685 - 785 Over 11
Name Symbol Temper Tensile Strength N/mm² Elongation %
Tough Pitch copper C 1100 P 0 Over 195 Over 35
1/2 H 245 - 315 Over 15
Character and application example
It has excellent electrical and thermal conductivity, good ductility, drawing workability and corrosion resistance.
Name Symbol Temper Tensile Strength N/mm² Elongation %
Tombac C 2200 P 0 Over 225 Over 35
1/2 H 285 - 365 Over 20
Character and application example
The color is beautiful, ductility; drawing workability and corrosion resistance are good.
NameSymbol Temper Tensile Strength N/mm² Elongation %
Brass C 2600 P 0 Over 275 Over 40 - 50
1/2 H 335 - 440 Over 28
Character and application example
It has excellent in ductility and deep drawing processability and good in plating properties.
NameSymbol Temper Tensile Strength N/mm² Elongation %
Brass C 2680 P 0 Under275 Over 40 - 50
1/2 H 355 - 440 Over 28
Character and application example
Good ductility, drawability, and plating properties.
NameSymbol Temper Tensile Strength N/mm² Elongation %
Free Cutting Brass C 3560 P 1/4 H 345 - 430 Over 18
H Over 420 ―
Character and application example
Especially excellent in machinability and good punching property. Clock parts,
gears etc.
NameSymbol Temper Tensile Strength N/mm² Elongation %
Free Cutting Brass C 3710 P 1/4 H 375 - 460 Over 20
H Over 470 ―
Character and application example
Especially excellent punching property and good machinability.
Clock parts, gears etc.
NameSymbol Temper Tensile Strength N/mm² Elongation %
Phosphor bronze C 5111 P 0 Over 295 Over 38
1/2 H 410 - 510 Over 12
Character and application example
Good spreadability, fatigue resistance and corrosion resistance.
Switch, lead frame, connector, etc.
NameSymbol Temper Tensile Strength N/mm² Elongation %
Cupronickel C 7060 P F Over 275 Over 30
Character and application example
Corrosion resistance, especially sea water resistance is good; it is suitable for use at relatively high temperature.
NameSymbol Temper Tensile Strength N/mm² Elongation %
Nickel Silver C 7351 P 0 Over 325 Over 20
1/2 H 390 - 510 Over 5
Character and application example
Luster is beautiful, ductility, fatigue resistance,
corrosion resistance are good.
NameSymbol Temper Tensile Strength N/mm² Elongation %
Copper beryllium alloy for springs C 1720 P 0 410 - 540 Over 35
1/2 H 590 - 695 Over 5
Character and application example
Good corrosion resistance.
High performance springs, springs for electric appliances, etc.
NameSymbol Temper Tensile Strength N/mm² Elongation %
Phosphor bronze for springs C 5210 P 1/2 H 470 - 610 Over 27
EH 685 - 785 Over 11
Character and application example
Good ductility, fatigue resistance and corrosion resistance.

＜Note＞1 N/mm² ≒ 0.102kgf/mm²

Reference from JIS Handbook (Nonferrous metals) : Japanese Standard Association

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