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Chrome Plated Bar
As a premier manufacturer and supplier specializing in chrome-plated bars, EASTAI Hydraulic has dedicated over 15 years to providing and exporting top-quality hydraulic cylinder chrome bars and hydraulic piston rods from China. Chrome-plated rods are primarily used in the manufacturing of hydraulic and pneumatic cylinders, offering enhanced durability and resistance to wear and corrosion. These rods find widespread applications in the automotive industry, particularly in shock absorbers, steering columns, and other critical components. Should you have any inquiries or encounter any issues, please do not hesitate to contact us at jeff@east-ai.cn. We guarantee a response within one working day.
Material: CK45, SAE1045, 4140, 4130, 4340, SAE1518, SAE4145, JIS45C, 40Cr, 20MnV6, 42CrMo, SS431, SS430, Stainless Steel 304/316/2205, etc.
Diameter: Φ 6-500mm
Length: max 20 meters
Salt Spray Test: Passed As Per Request
Chrome Layer: min 20/25/30/50 Micron or customized
Hardness of Chrome Layer: 850 HV (min) – 1150 HV
Roughness: Ra <= 0.4
Straightness: <= 0.5/1000
Diameter Tolerance: ISO f7/f8/f9/h8/h9 or as request
Roundness: Half of the tolerance ISO f7
Heat Treatment Type: 1) Normal no heat 2) Q+T (Quenched + Tempered) 3) Induction Hardened
Product Offerings: Hard Chrome Bar, Hard Chrome Rod, Induction Hardened Chrome Bar, Hydraulic Cylinder Shaft, Hydraulic Cylinder Rod.
| Material | C% | Mn% | Si% | S% | P% | V% | Cr% | ||
| Ck45 | 0.42-0.50 | 0.50-0.80 | 0.17-0.37 | ≤0.035 | ≤0.035 | ≤0.25 | |||
| ST52 | ≤0.22 | ≤1.6 | ≤0.55 | ≤0.04 | ≤0.04 | 0.02-0.15 | |||
| 20MnV6 | 0.17-0.24 | 1.30-1.70 | 0.10-0.50 | ≤0.035 | ≤0.035 | 0.10-0.20 | ≤0.30 | ||
| 42CrMo4 | 0.38-0.45 | 0.50-0.80 | 0.17-0.37 | ≤0.035 | ≤0.035 | 0.07-0.12 | 0.90-1.20 | ||
| 40Cr | 0.37-0.45 | 0.50-0.80 | 0.17-0.37 | ≤0.035 | ≤0.035 | 0.80-1.10 | |||
| 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 | NORMALIZE | ||||
| 20MnV6 | 750 | 590 | 12 | >40J | NORMALIZE | |||
| 42CrMo4 | 980 | 850 | 14 | >47J | Q+T | |||
| 40Cr | 1000 | 800 | 10 | Q+T | ||||
| Grade of tolerance Dia mm o | f | h | ||||
| f7 | f8 | g6 | h7 | h8 | h9 | |
| 3mm | -0.006 -0.016 | -0.006 -0.020 | -0.002 -0.008 | 0 -0.010 | 0 -0.014 | 0 -0.025 |
| 3mm-6mm | -0.010 -0.022 | -0.010 -0.028 | -0.004 -0.012 | 0 -0.012 | 0 -0.018 | 0 -0.030 |
| 6mm-10mm | -0.013 -0.028 | -0.013 -0.035 | -0.005 -0.014 | 0 -0.015 | 0 -0.022 | 0 -0.036 |
| 10mm-18mm | -0.016 -0.034 | -0.016 -0.043 | -0.006 -0.017 | 0 -0.018 | 0 -0.027 | 0 -0.043 |
| 18mm-30mm | 0.020 -0.041 | -0.020 -0.053 | -0.007 -0.020 | 0 -0.021 | 0 -0.033 | 0 -0.052 |
| 30mm-50mm | -0.025 -0.050 | -0.025 -0.064 | -0.009 -0.025 | 0 -0.025 | 0 -0.039 | 0 -0.062 |
| 50mm-80mm | -0.030 -0.060 | -0.030 -0.079 | -0.010 -0.029 | 0 -0.030 | 0 -0.046 | 0 -0.074 |
| 80mm-120mm | -0.036 -0.071 | 0.036 -0.090 | 0.012 -0.034 | 0 -0.035 | 0 -0,054 | 0 0.087 |
| 120mm-180mm | -0.043 -0.083 | -0.043 -0.106 | -0.014 -0.039 | 0 -0.040 | 0 -0.063 | 0 -0.100 |
| 180mm-250mm | -0.050 -0.096 | -0.050 0.122 | -0.015 0.044 | 0 -0.046 | 0 -0.072 | 0 -0.115 |
| 250mm-315mm | -0.056 -0.108 | -0.056 -0.137 | -0.017 -0.049 | 0 -0.052 | 0 -0.081 | 0 -0.130 |
| 315mm-400mm | -0.062 -0.119 | -0.062 -0.151 | -0.018 -0.054 | 0 -0.057 | 0 -0.089 | 0 -0.140 |
| 400mm-500mm | -0.068 -0.131 | -0.068 -0.165 | -0.020 -0.060 | 0 -0.063 | 0 -0.097 | 0 -0.155 |
Piston Rod Production Process
Delivery Condition:
- Hard Chrome Piston Rod
- Quenched & Tempered (Q+T) Rod
- Induction Hardened Rod
- Q+T Induction Hardened Rod
Corrosion Resistance:
Test in natural salt spray according to ASTM B 117-96 hours.
Professional Testing
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Features of Our Chrome Plated Bar/Chrome Rod/Chrome Shaft:
Precision Manufacturing: We strictly follow customer drawings, packing, and quality requests to ensure precision in every part.
Tight Tolerances: Our processes allow for tolerances to be kept within +/-0.01mm, ensuring high precision.
Quality Assurance: Utilization of the most advanced inspection tools to maintain quality.
Expertise: Our team consists of experienced engineers and well-trained workers, guaranteeing expert craftsmanship.
Timely Delivery: We commit to fast and timely delivery, providing speedy and professional service.
Cost-Saving Advice: We offer professional suggestions during the design process to help customers save costs.
Our Main Business Range
Carbon Seamless Steel Pipe/Tube
Hydraulic Cylinder Tube (Honed Tube)
Hard Chrome Plated Rod/Bar/Shaft (Hydraulic Piston Rod)
Hydraulic Cylinder
Chrome Plated Bars/Chrome Plated Rods & Shafting
Hollow Chrome Bars
4140 Chrome Plated Bars & Rods
1045 Hard Chrome Bars
We pride ourselves on offering the best hard chrome rods and chrome bars for our customers. If you are interested in our chrome-plated rods, hard chrome rod, or induction hardened chrome bars, please don’t hesitate to get in touch for more information.
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Email: jeff@east-ai.cn
Tel, WhatsApp, WeChat: +86 18306172624