Piston Pin sample data

1	Material Specification
		DIN 17210 - 16MnCr5                                                                                             DIN 17210 - 15Cr3                                                                                        Similar to ASTM A322 Designation 5015
2	Heat Treatment
		Case Hardened and Tempered                                                                                Surface Hardness : 57 + 8 HRC,  635 + 195 HV10                                                                  Case Depth : 0.5 + 0.6 mm
		Hardness Penetration Depth Limit : 500 HV1
3	Maximum Permissible Dimetral Growth
		0.012 mm after stabilising for 72 hours at 220 deg C.
4	Dimensional Details
		OD = 35 mm +0.000 / -0.006 mm                          for 35 mm h4 = -0.007 mm
		ID = 18 mm +0.3 / -0.3 mm                                   for 18 mm, js14 = +/- 0.215, js15 = +/- 0.390 mm
		Length = 80 mm +0.0 / 0.5 mm                             for 80 mm, h13 = -0.460 mm
		OD Corner Radii = 0.6 mm +/- 0.1 mm
		ID Edge chamfer = 1 x 45 deg.
5	Form tolerances
		ID to be concentric within DIA 0.4 wrt OD              for 35 OD, IT13 = 0.390 mm
		OD roundness 0.002 mm                                     1/3 OD Tolerance
		OD Straightness 0.004 mm                                  2/3 OD Tolerance
6	Surface Finish
		OD = Fine lapped, Rp 0.25 max as per DIN 4762 Part 1 (Measured according to 'M' system)
		ID = Rz 25
		unspecified Surfaces Rz 100
		Conversions : Rz 100 = Ra 30
		Rz 25 = Ra 6.3