튻ꆢ펲뛈볲뷩ꎺ 펲뛈뇭쪾닄쇏뗖뾹펲컯쳥톹죫웤뇭쏦뗄쓜솦ꆣ쯼쫇뷰쫴닄쇏뗄훘튪탔쓜횸뇪횮튻ꆣ튻냣펲뛈풽룟ꎬ쓍쒥 탔풽뫃ꆣ뎣폃뗄펲뛈횸뇪폐늼쫏펲뛈ꆢ싥쫏펲뛈뫍캬쫏펲뛈ꆣ 1. 늼쫏펲뛈 (HB) 틔튻뚨뗄퓘뫉 ( 튻냣 3000kg) 냑튻뚨듳킡 ( 횱뺶튻냣캪 10mm) 뗄듣펲룖쟲톹죫닄쇏뇭쏦ꎬ 놣돖튻뛎쪱볤ꎬ 좥 퓘뫳ꎬ뢺뫉폫웤톹뫛쏦믽횮뇈횵ꎬ벴캪늼쫏펲뛈횵 ( HB) ꎬ 떥캻캪릫뷯솦/mm 2 (N/mm 2 )ꆣ 2. 싥쫏펲뛈 (HR) 떱 HB >450 믲헟쫔퇹맽킡쪱ꎬ늻쓜닉폃늼쫏펲뛈쫔퇩뛸룄폃싥쫏펲뛈볆솿ꆣ쯼쫇폃튻룶뚥뷇 1 20ꇣ뗄뷰 룕쪯풲ힶ쳥믲횱뺶캪 1 .59 ꆢ 3.1 8mm 뗄룖쟲ꎬ 퓚튻뚨퓘뫉쿂톹죫놻닢닄쇏뇭쏦ꎬ 평톹뫛뗄짮뛈쟳돶닄쇏뗄 펲뛈ꆣ룹뻝쫔퇩닄쇏펲뛈뗄늻춬ꎬ럖죽훖늻춬뗄뇪뛈살뇭쪾ꎺ HRA ꎺ쫇닉폃 60