jp3764627b2

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jp3764627b2

12Next12NextJP3764627B2 - Case-hardened boron steel for cold forging

JP3764627B2 JP2000116603A JP2000116603A JP3764627B2 JP 3764627 B2 JP3764627 B2 JP 3764627B2 JP 2000116603 A JP2000116603 A JP 2000116603A JP 2000116603 A JP2000116603 A JP 2000116603A JP 3764627 B2 JP3764627 B2 JP 3764627B2 Authority JP Japan Prior art keywords less cold forging bainite during carburizing boron steel Prior art date 2000-04-18Images of JP3764627B2 images12NextJP3764627B2 - Case-hardened boron steel for cold forging JP3764627B2 JP2000116603A JP2000116603A JP3764627B2 JP 3764627 B2 JP3764627 B2 JP 3764627B2 JP 2000116603 A JP2000116603 A JP 2000116603A JP 2000116603 A JP2000116603 A JP 2000116603A JP 3764627 B2 JP3764627 B2 JP 3764627B2 Authority JP Japan Prior art keywords less cold forging bainite during carburizing boron steel Prior art date 2000-04-18

JP3764627B2 -

JP3764627B2 JP2000116603A JP2000116603A JP3764627B2 JP 3764627 B2 JP3764627 B2 JP 3764627B2 JP 2000116603 A JP2000116603 A JP 2000116603A JP 2000116603 A JP2000116603 A JP 2000116603A JP 3764627 B2 JP3764627 B2 JP 3764627B2 Authority JP Japan Prior art keywords less steel hardness amount hot Prior art date 2000-04-18 Legal status (The legal status is anJP3764627B2 - JP3764627B2 JP2000116603A JP2000116603A JP3764627B2 JP 3764627 B2 JP3764627 B2 JP 3764627B2 JP 2000116603 A JP2000116603 A JP 2000116603A JP 2000116603 A JP2000116603 A JP 2000116603A JP 3764627 B2 JP3764627 B2 JP 3764627B2 Authority JP Japan Prior art keywords less steel hardness amount hot Prior art date 2000-04-18 Legal status (The legal status is anJP3764627B2 - JP3764627B2 JP2000116603A JP2000116603A JP3764627B2 JP 3764627 B2 JP3764627 B2 JP 3764627B2 JP 2000116603 A JP2000116603 A JP 2000116603A JP 2000116603 A JP2000116603 A JP 2000116603A JP 3764627 B2 JP3764627 B2 JP 3764627B2 Authority JP Japan Prior art keywords less steel hardness amount hot Prior art date 2000-04-18 Legal status (The legal status is an

JP3764627B2 - Case-hardened boron steel for cold forging

JP3764627B2 JP2000116603A JP2000116603A JP3764627B2 JP 3764627 B2 JP3764627 B2 JP 3764627B2 JP 2000116603 A JP2000116603 A JP 2000116603A JP 2000116603 A JP2000116603 A JP 2000116603A JP 3764627 B2 JP3764627 B2 JP 3764627B2 Authority JP Japan Prior art keywords less cold forging bainite during carburizing boron steel Prior art date 2000-04-18

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