Ningbo Jintian Copper (Group) Co., Ltd.
Ningbo Jintian Copper (Group) Co., Ltd.

Lead Frame Strip/KFC Performance Parameter


Chemical composition of C19210

The main elements

Cu

Fe

P

Content / %

Rem.

0.05-0.15

0.025-0.04


Physical properties of C19210

The density of

8.9

g/cm3

Conductivity @ 20 ℃

89

%IACS

Thermal conductivity @ 20 ℃

350

W/(m • K)

Specific heat capacity

0.385

J/g • K)

Poisson's ratio

0.33

-

Modulus of elasticity

125

GPA

Surface roughness

0.12 or less

um


Mechanical properties of C19210

state

Hardness/HV

Tensile strength /MPa

Yield strength /MPa

Elongation/A50%

1/4H

100-120.

310-380.

280-350.

15 or more

1/2H

110-130.

350-420.

300-390.

5 or more

H

120-135.

390-460.

P 350

3 or higher

EH

130-150.

420-490.

P 400

1 or more


Chemical composition of C19400


The main elements

Cu

Fe

P

Content / %

Rem.

2.1-2.6

0.015-0.15



Physical properties of C19400


The density of

8.8

g/cm3

Conductivity @ 20 ℃

66

%IACS

Thermal conductivity @ 20 ℃

280

W/(m • K)

Specific heat capacity

0.385

J/g • K)

Poisson's ratio

0.33

-

Modulus of elasticity

121

GPa

Surface roughness

0.12 or less

um



Mechanical properties of C19400

state

Hardness/HV

Tensile strength /MPa

Yield strength /MPa

Elongation/A50%

1/2H

115-135.

370-430.

320-420.

10 or higher

H

125-145.

420-470.

P 390

5 or more

EH

135-150.

460-505.

P 440

2 or more

SH

140-160.

485-525.

-

2 or more


Lead Frame Strip/KFC Production Process

Lead Frame Strip/KFC Executive Standard

JIS H3110: 2018