ASTM M7

2013-05-16 23:22:28 Print this page

The high quality USA ASTM M7 material is one of the more steel grades we supply, High-Speed Tool Steel. M7 is our main production grade, which has been approved by customers in many countries since its initial production, including our M7 round bars, flat bar, forgings, fasteners, tubes, wires, strips, sheets & Plates, as well as a variety of profiles, professional high precision auto-lathe processing manufacturer of clinching fasteners, axes, standoffs, screws, studs, nuts, bolt, OEM parts and special shaped turning partsthe state of delivery includes quenched and tempered, annealed, machined semi-finished products, we also have strict management of the packaging, to avoid material damage from transportation. We are the best supplier of M7 materials, and we are willing to develop together with customers from all over the world.

Also includes M7 steel material norm, chemical composition, mechanical properties, datasheet, M7 equivalent, heat treatment and temperature process of M7, The peak hardness can be achieved, Contains all of the specification, welding properties, let us in M7 this steel grade have a more comprehensive understanding, Download the full M7 PDF version of this datasheet.

Chemical composition (wt.%) of M7

Elements	Min.（≥）	Max.（≤）
C	0.97	1.05
Si	0.20	0.55
Mn	0.15	0.40
P	-	0.030
S	-	0.030
Cr	3.50	4.00
Mo	8.20	9.20
V	1.75	2.25
W	1.40	2.10
Co	-	-

Mechanical Properties of M7

Rp0.2 (MPa)	Rm (MPa)	Impact KV (J)	Elongation A (%)	A Z (%)	Delivery	Hardness HB
122 (≥)	272 (≥)	22	32	31	Solution & Aging, Ann, Ausaging, Q+T	141