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                  [email protected]+86-510-81818636

                  Contact Us

                  Tel: +86-510-81818636
                  Fax: +86-510-81818633
                  E-mail: [email protected]
                  Address: New District of Wuxi City, Jiangsu Province Kam Road 101 6 (Forward Industries District)

                  Location: HomeProductsPowder Metallurgy High-speed SteelPM 4

                  PM 4

                  PM 4

                  Chemical composition


                  C Cr Mo W V
                  1.4 4.2 5.0 5.8 4.1

                  Standard control



                  Europe HS 6-5-4
                  Germany W.Nr.1.3361

                  Delivery hardness


                  Max 260HB

                  Properties


                  PM4 is a kind of high vanadium micro pure powder metallurgical tool steel, with the advantages of high strength and high toughness. It is very suitable for cold work tool, tool and wear-resistant parts. Especially when meting die breakage or fragmentation problems, it will be significant to consider the effectiveness via cost.


                  Supply size
                  Forging materials Size range(mm)
                  Round 90-380
                  Party/partial Rolled products

                  Minimum thickness 40
                  Rolled products
                  Skinning 10-72
                  The black board eraser Thickness 5-55

                  Width 20-260
                  Special shapes
                  As required
                  PMAs required
                  400*500*2100

                  400*500*1100

                  400*500*1000

                  400*250*1000

                  500*200*1000



                  Annealing treatment


                  Cooling to 700℃ slowly at a rate of 10℃/h under protective atmosphere of 850-900℃,then air cooling.

                  Strain relief


                  Keeping in 600-700℃ for 2 hours, and cooling to 500℃ slowly。

                  Quenching


                  Preheating in two steps under protective atmosphere, 400-500℃ and 850-900℃, and choosing the right temperature depending on the hardness and then cooling of austenite to40-50℃.

                  Tempering


                  560℃ 3 times, each time for at least 1 hour, cooling to room temperature after each tempered.



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                  Tel: +86-510-81818636 Fax: +86-510-81818633 E-mail: [email protected]
                  Address: New District of Wuxi City, Jiangsu Province Kam Road 101 6 (Forward Industries District)
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