JIS C5240HQ Harada

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Description

Due to the global trend toward smaller and thinner electronic components, demand for phosphor bronze with higher strength and bendability has been increasing as the base material. To meet such needs, Harada has added a newly developed material to its products line-up, a high quality phosphor bronze (HQ).

This grade can be hot-dip tin plated.

Related Standards

Equivalent Materials

This material data has been provided by HARADA METAL INDUSTRY CO., LTD..

"Typical" values were obtained via a literature search. "Predicted" values were imputed via artificial intelligence technology. While we have placed significant efforts in ensuring data accuracy, "typical" and "predicted" data should be considered indicative and verified by appropriate material testing. Please do contact us if additional information on the the predicted data method is required.
All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

Ashby charts

Properties

General

PropertyValue

Relative density

8.78 [-]

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Mechanical

PropertyValueComment

Bendability 90°, bw

0 [-]

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H Temper

1.5 [-]

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EH Temper

2 [-]

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SH Temper

3.3 [-]

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ESH Temper

Bendability 90°, gw

0 [-]

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H Temper

0 [-]

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EH Temper

0.8 [-]

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SH Temper

1.6 [-]

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ESH Temper

2.5 [-]

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XSH Temper

Elastic modulus

105 GPa

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Elongation

2 %

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XSH Temper

2.4 %

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ESH Temper

9.2 %

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SH Temper

15.3 %

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EH Temper

25.6 %

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H Temper

Flexural modulus

100 GPa

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Hardness, Vickers

223 [-]

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H Temper

245 [-]

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EH Temper

267 [-]

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SH Temper

285 [-]

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ESH Temper

305 [-]

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XSH Temper

Tensile strength

693 MPa

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H Temper

800 MPa

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EH Temper

890 MPa

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SH Temper

1000 MPa

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ESH Temper

1058 MPa

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XSH Temper

Yield strength

558 MPa

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H Temper | for spring material (Kb0.1)

585 MPa

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EH Temper | for spring material (Kb0.1)

657 MPa

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H Temper, RP02

661 MPa

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SH Temper | for spring material (Kb0.1)

718 MPa

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ESH Temper | for spring material (Kb0.1)

783 MPa

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EH Temper, RP02

877 MPa

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SH Temper, RP02

883 MPa

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XSH Temper | for spring material (Kb0.1)

988 MPa

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ESH Temper, RP02

1044 MPa

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XSH Temper, RP02

Thermal

PropertyValue

Coefficient of thermal expansion

1.84e-05 1/K

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Melting point

845 - 1000 °C

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Specific heat capacity

375 J/(kg·K)

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Thermal conductivity

50 W/(m·K)

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Electrical

PropertyValue

Specific Electrical conductivity

10 % IACS

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Chemical properties

PropertyValueComment

Iron

0.01 %

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max.

Lead

0.01 %

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max.

Other

99.8 %

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min. | Cu+Sn+P

Phosphorus

0.04 - 0.2 %

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Tin

9 - 11 %

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Zinc

0.01 %

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max.

Technological properties

Property
Application areas

The grade is particularly suitable for electronics (connectors, lead frames, lead terminals, transistor terminals, etc.), electrical (relay and switch contacts, rotary switch slides and contacts, fuse clips, etc.), automotive (bearing frames, hydraulic equipment caps, packing, bearings, clutch disks, electrical parts, etc.) and others (bellows, slides, blades, plate springs, corrosion-proof machinery equipment, diaphragms, etc.)

Coating

Standard product specification of a HOT-DIP-tinned strip.


Base material thickness (mm)0.1~0.8
Plating thickness (μm)0.7~8.0
Width (mm)8.0~170
Coil unit weight (kg/mm)1.0 / 2.0 / 4.0/ 8.0
Coil inside diameter (mm)250φ / 300φ / 400φ / 500φ
Plating materialPure tin
Plating base materialPhosphor bronze


*Width means the slit width after plating.

*Different plating thickness for each side is possible.

* We can accommodate our products to individual specifications other than the above standard specifications. Please feel free to call us.

Other

Please contact the supplier if you have any specific requests regarding chemical compostions, mechanical properties, and thickness.

Tolerances

ThicknessInternal Controlled SpecificationJIS Standard (H3110,H3130)
0.05∼0.08mm±0.002±0.005
0.09∼0.15mm±0.002±0.008
0.16∼0.25mm±0.003±0.013
0.26∼0.30mm±0.004±0.018