X90 CrMo V18 - 1.4112 Stainless Steel Linear Bearing Shaft
Material Data Sheet
Stainless Guide material with good hardening properties and high grinding finish. Selected for use in High Quality Linear Bearing and Guideway systems where Induction Hardened, Corrosion Resistant materials are required.
| Chemical Analysis: | ||||||||
| Designation |
C |
Si |
Mn |
P |
S |
Cr |
Mo |
V |
| X90CrMoV18 | 0.85 - | <= | <= | <= | <= | 17.0 - | 0.90 - | 0.07 - |
| 0950 | 1.0 | 1.0 | 0.040 | 0.020 | 19.0 | 1.3 | 0.12 | |
Grain Size: 5 - 8 to ASTM
Purity : K4 < 30
Mechanical and Physico-metallurgical Properties: The yield and tensile strength are not standardized. An analysis from 50 batches measuring 12-130mm calculated from HB-Values resulted in the following Standard Values:
| Diam. 20 - 130 mm milled and peeled: | Diam. 12 + 14 m drawn (without finish annealing) | ||
| Minimum Value | Rm = 720 N/mm2 | Minimum Value: | Rm = 930 N/mm2 |
| Maximum Value: | Rm = 860 N/mm2 | Maximum Value: | Rm = 1015 N/mm2 |
| Average Value: | Rm = 835 N/mm2 | Average Value: | Rm = 973 N/mm2 |
| Values accoring to SEW 400: | Thermal Expansion: |
| E-Modulus at 20oC = 220 000 N/mm2 | 20 - 100oC = 1.4 x 10-6 x K |
| E-Modulus at 100oC = 216 000 N/mm2 | 20 - 200oC = 10.8 x 10-6 x K |
| Density: 7.7 kg/ dm3 | The material is magnetizable |
Dimensions and Tolerances:
Standard Diameters in mm, h6/h7 tolerance:
6- 8- 10- 12- 15- 16- 20- 25- 30- 40- 50- 60
other dimensions on request
Production length: max. 7800mm
<10 mm max 3800 mm
| Straightness: < Rd. 10 = <0.3 mm/m Rd. 10 - 20 = <0.2mm/m => Rd. 20 = 0.1mm/m Suface finish: |
Hardening: Surface Hardness 53 - 56 HRC; Tht: 450 Hv2
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