Hunan Golden Globe I&E OED Co.,Ltd

EDM Block

Carbide Grade: OBI10

For thickness below 0.5mm stainless steel,

LED lead frame

Grade	Cobalt %	Density	Hardness	T.R.S	Compress Strength	Rupture toughness	Expansion coefficient
Grade	Cobalt %	g/cm³	HRA	N/mm²	N/mm²	Mpa.M^1/2	10^-6/℃
OBI10	12	14.15	90.2	3800	5200	13	5.7

Carbide Grade: OBI20

For thickness below 0.6mm stainless steel,

LED lead frame

Grade	Cobalt %	Density	Hardness	T.R.S	Compress Strength	Rupture toughness	Expansion coefficient
Grade	Cobalt %	g/cm³	HRA	N/mm²	N/mm²	Mpa.M^1/2	10^-6/℃
OBI20	14.5	13.98	90.5	3500	5600	12	5.8

Carbide Grade: OBI30

For thickness between 0.01-1.0mm stainless steel,

LED lead frame

Grade	Cobalt %	Density	Hardness	T.R.S	Compress Strength	Rupture toughness	Expansion coefficient
Grade	Cobalt %	g/cm³	HRA	N/mm²	N/mm²	Mpa.M^1/2	10^-6/℃
OBI30	12	14.25	90.5	3700	5000	13	5.7

Carbide Grade: OBC10

For punching Cu, Fe, Al sheets

Grade	Cobalt %	Density	Hardness	T.R.S	Compress Strength	Rupture toughness	Expansion coefficient
Grade	Cobalt %	g/cm³	HRA	N/mm²	N/mm²	Mpa.M^1/2	10^-6/℃
OBC10	14.5	14	90	3800	5200	13	5.7

Carbide Grade: OBC20

For punching Cu, Fe, Al sheets

Grade	Cobalt %	Density	Hardness	T.R.S	Compress Strength	Rupture toughness	Expansion coefficient
Grade	Cobalt %	g/cm³	HRA	N/mm²	N/mm²	Mpa.M^1/2	10^-6/℃
OBC20	5	14.9	90.5	3700	5000	13	5.8

Carbide Grade: OBD10

For making powder metallurgy molds, motor molds

Grade	Cobalt %	Density	Hardness	T.R.S	Compress Strength	Rupture toughness	Expansion coefficient
Grade	Cobalt %	g/cm³	HRA	N/mm²	N/mm²	Mpa.M^1/2	10^-6/℃
OBD10	14	13.85	89	3000	5000	13	5.7

Carbide Grade: OBD20

For making powder metallurgy molds, motor molds (UPER)

Grade	Cobalt %	Density	Hardness	T.R.S	Compress Strength	Rupture toughness	Expansion coefficient
Grade	Cobalt %	g/cm³	HRA	N/mm²	N/mm²	Mpa.M^1/2	10^-6/℃
OBD20	11.5	14.05	89.5	3000	5000	17	6.1

Carbide Grade: OBD30

For making powder metallurgy molds, motor molds (BOTTOM)

Grade	Cobalt %	Density	Hardness	T.R.S	Compress Strength	Rupture toughness	Expansion coefficient
Grade	Cobalt %	g/cm³	HRA	N/mm²	N/mm²	Mpa.M^1/2	10^-6/℃
OBD30	14.5	13.95	88.5	3000	5000	17	6.1

For international cooperation, please contact our export company at Hunan Golden Globe I and E OED Co.,Ltd

Add: NO.1403,Sector A,YaoHua Plaza,Changjiang Road N.,Tianyuan Distict,Zhuzhou City,Hunan412007,China

Tel: 86-731-28896226(Working time)

Fax: : 86-731-28896226(Working time)

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