PISTON ROD
Steel grade:45# /DIN CK45 /JIS 45C/SAE 1045/SAE 10V45/ST52/20MnV6/42CrMo4/40Cr
Diameter:6~300mm
Length:3~9m
Tolerance:ISO f7
Chrome thickness:20μm(min)
Hardness of the chrome layer:850HV(min)
Roughness:Ra 0.2μm(max)
Straightness:0.2/1000mm
Yield Strength:≥320 Mpa Â
Tensile Strength:≥580 MpaÂ
Elongation:≥ 15%
Supply condition:1.Hard chrome plated
               2.Induction hardened
               3.Quenched & Tempered
               4.Induction hardened with Q&T
Chemical Composition(%)
Material | C% | Mn% | Si% | S% | P% | V% | Cr% |
CK45 | 0.42-0.50 | 0.50-0.80 | 0.04 | 0.035 | 0.035 | Â | Â |
ST52 | 0.22 | 1.6 | 0.55 | 0.035 | 0.04 | Â | Â |
20MnV6 | 0.16-0.22 | 1.30-1.70 | 0.10-0.50 | 0.035 | 0.035 | 0.10-0.20 | Â |
42CrMo4 | 0.38-0.45 | 0.60-0.90 | 0.15-0.40 | 0.03 | 0.03 | Â | 0.90-1.20 |
40Cr | 0.37-0.45 | 0.50-0.80 | 0.17-0.37 | Â | Â | Â | 0.80-1.10 |
Â
Mechanical Properties
Material | T.S N/MM2 | Y.S N/MM2 | E%(MIN) | CHARPY | CONDITION |
CK45 | 610 | 355 | 15 | >41J | NORMALIZE |
CK45 | 800 | 630 | 20 | >41J | Q+T |
ST52 | 500 | 355 | 22 | Â | NORMALIZE |
20MnV6 | 750 | 590 | 12 | >40J | NORMALIZE |
42CrMo4 | 980 | 850 | 14 | >47J | Q+T |
40Cr | 1000 | 800 | 10 | Â | Q+T |
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