MACSTEEL - SPECIAL STEELS CATALOGUE Cold Work Steels ...

MACSTEEL - SPECIAL STEELS CATALOGUELea Road Tel: (011) 897-5000Dunswart Fax: (011) 918-1125P O Box 6130, Dunswart 1508 Email: mac.dun@mactrading.co.zaSouth AfricaWeb: www.macsteel.co.zaHot working and heat treatmentsForging1 000 - 850 ºC (1 830 – 1 560ºF)Soft annealingBrinell hardness in theannealed condition max:Stress relievingPreheating for hardeningHardening temperatureQuenching Oil, Air or saltbath ofTemperingTime840 - 860 ºC (1 545 – 1 580ºF)4 - 6 hrs Furnace Cooling240 BHN650 ºC (1 200ºF)850 ºC (1 560ºF)980 – 1 000 ºC (1 795 – 1 830ºF)1 020 – 1 040 ºC (1 870 – 1 900ºF)1 060 – 1 080 ºC (1 940 – 1 975ºF)450 - 500 ºC (840 - 930ºF) or200 - 220 ºC (390 – 430ºF)180 - 300 ºC (265 - 570ºF)Or 550 - 570 ºC (1 020 – 1 060ºF)1 hr/25 mm (1 hr/in)* Minimum holding time – 20 minutes.* Depends on requirmentsAlthough every care has been taken in the compilation of this brochure, which is forinformation only, no responsibility can be accepted for inaccuracies.A division of Macsteel Service Centre SA (Pty) Ltd: Reg. No 2005/016292/07Page 2 of 4

MACSTEEL - SPECIAL STEELS CATALOGUELea Road Tel: (011) 897-5000Dunswart Fax: (011) 918-1125P O Box 6130, Dunswart 1508 Email: mac.dun@mactrading.co.zaSouth AfricaWeb: www.macsteel.co.zaAlthough every care has been taken in the compilation of this brochure, which is forinformation only, no responsibility can be accepted for inaccuracies.A division of Macsteel Service Centre SA (Pty) Ltd: Reg. No 2005/016292/07Page 3 of 4

MACSTEEL - SPECIAL STEELS CATALOGUELea Road Tel: (011) 897-5000Dunswart Fax: (011) 918-1125P O Box 6130, Dunswart 1508 Email: mac.dun@mactrading.co.zaSouth AfricaWeb: www.macsteel.co.zaAlthough every care has been taken in the compilation of this brochure, which is forinformation only, no responsibility can be accepted for inaccuracies.A division of Macsteel Service Centre SA (Pty) Ltd: Reg. No 2005/016292/07Page 4 of 4