Hydraulic piston rod, Precision linear shafts, Cylinder chrome rod, Hard chrome shaft, Hard chrome plated rod, C45E rod

External Diameter Accuracy : f7 f8
Surface Roughness: max Ra0.2μm
Hard Chrome Thickness : <Φ22.225mm: min 15 μm
≧Φ24mm: min 20 μm
Surface Hardness : min HV 850
Straightness : <Φ20mm: max 0.25/1000mm
≧Φ20mm: max 0.2/1000mm
Roundness : tolerance × 1/2
Standard Length : 3M ~ 6Mup
Standard Size: Φ6 ~ 255Φ (Φ1/4” ~ Φ10”)
Corrosion Resistance(ISO 9227 NSS): Φ<20mm R9 /72hr NSS
Φ≧20mm R9 /120hr NSS
The test of NSS and CASS can be performed in our own laboratory.
Steel Grade: JIS S45C, SAE1045, DIN CK45, EN C45E, ASTM 1045, 20MnV6, 38MnVS6 (special specification & material can be supplied upon request.)

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Dia mm Ø	Dia mm Ø	Dia mm Ø	Dia mm Ø
6	30	60	112
8	31.5	63	114.3
10	31.75	63.5	120
12	32	65	125
12.5	35	67	127
14	35.5	70	130
15	36	71	135
16	38	75	140
17	38.1	76.2	145
18	40	80	150
19	42	82.55	152.4
20	44.45	85	160
22	45	88.9	165.1
22.4	50	90	170
25	50.8	100	177.8
25.4	55	101.6	180
28	56	105	190
28.56	57.15	110	200
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Product Feature

Chrome rod made of SAE1045 S45C C45E 20MnV6 and 38MnVS6 steel

Chrome rod made of SAE1045, S45C, C45E, 20MnV6 and 38MnVS6 steel is designed for high-performance applications requiring precision and durability. As leading hard chrome plated rod suppliers, we provide chrome rods with external diameter accuracy of f7 f8 and a maximum surface roughness of Ra0.2μm, ensuring superior performance. The hard chrome thickness is a minimum of 15μm for diameters below Φ22.225mm and 20μm for diameters of Φ24mm and above. With a minimum surface hardness of HV850, our chrome rods offer excellent wear resistance. Straightness is maintained at a maximum of 0.25/1000mm for diameters under Φ20mm and 0.2/1000mm for larger sizes. Roundness tolerance is controlled at half the specification, ensuring a precise fit. Available in standard lengths from 3M to 6M and sizes from Φ6 to Φ255mm (Φ1/4” to Φ10”), these rods are tested for corrosion resistance under ISO 9227 NSS standards, achieving R9 ratings at 72hr for Φ<20mm and 120hr for Φ≥20mm. NSS and CASS testing is conducted in our in-house laboratory for guaranteed quality.

Durable Chrome Rod and Hard Chrome Plated Bar for Hydraulic Applications

Our chrome rod and hard chrome plated bar are designed for high-performance hydraulic and pneumatic cylinders, delivering exceptional durability, strength, and corrosion resistance. These components play a vital role in ensuring smooth operation, long service life, and reduced maintenance costs, making them ideal for demanding industrial applications.

Superior Corrosion Resistance for Harsh Environments
Hydraulic cylinders are frequently exposed to moisture, high temperatures, and corrosive chemicals, especially in marine, chemical, and heavy industrial settings. To combat these challenges, our chrome rods and hard chrome plated bars meet ISO 9227 NSS corrosion resistance standards, providing superior protection against rust and oxidation. This ensures long-term performance even in the most harsh and corrosive environments.
Precision Engineering and Quality Assurance
Each chrome rod undergoes rigorous testing in our in-house salt spray laboratory and at the Taiwan Metal Industries Research & Development Centre to guarantee top-tier quality. Our corrosion resistance testing meets ISO standards, achieving a rating of R10 with a testing period of up to 1000 hours, ensuring exceptional surface protection and wear resistance.
Reliable Performance for Hydraulic and Pneumatic Cylinders
Our hard chrome plated bars feature an advanced surface treatment process that enhances hardness and durability, making them highly resistant to wear, impact, and mechanical stress. This ensures smooth piston movement, reduced friction, and improved sealing efficiency, which are essential for high-pressure hydraulic systems.

Key Applications of Chrome Rods and Hard Chrome Plated Bars

✔ Hydraulic and pneumatic cylinders requiring high wear resistance
✔ Industrial automation and machinery for precise motion control
✔ Marine and offshore equipment exposed to saltwater and humidity
✔ Heavy-duty construction and mining equipment operating in extreme conditions

By choosing our chrome rod and hard chrome plated bar, you ensure maximum efficiency, extended lifespan, and superior corrosion resistance for your hydraulic and pneumatic systems. Our commitment to precision manufacturing and strict quality control guarantees high-performance components that withstand harsh environments and demanding industrial applications.

Tolerance form

Tolerance of hydraulic piston rod, precision linear shafts, cylinder chrome rod, hard chrome shaft, hard chrome plated rod, C45E rod, hard chrome piston rod, hard chrome bar, piston shaft and hard chromium rod

Grade of tolerance Dia mm Φ	f		g	h
Grade of tolerance Dia mm Φ	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

(unit)µ=0.001mm

Product Specification

Spec		Chemical Analysis (%)					Forging Temperature
JIS	DIN	C	Si	Mn	P	S	° C
S45C	CK45	0.42-0.48	0.15-0.35	0.60-0.90	< 0.030	< 0.035	0.30-0.90 Slow Cooling

Induction				Machine Function					Application
Normalizing °C	Annealing °C	Quenching °C	Tempering °C	Yield Point (Y.P)Kgf/ mm²	Tensile Strength (T.S)Kgf/ mm²	Elongation (EL)%	twist %	Hardness HB	Application
820-870 Air Cooling				>35	>58	>20	----	167-229	Bend Axle
820-870 Air Cooling	810 Furnace Cooling			>35	>58	>20	----	167-229	Bend Axle
----	810 Furnace Cooling	820-870 Water Cooling	550-650 Quenching	----	----	----	----	137-170
----	----	820-870 Water Cooling	550-650 Quenching	>50	>70	>17	>45	204-269	Axles

We are able to offer best hydraulic piston rod, precision linear shafts, cylinder chrome rod, hard chrome shaft, hard chrome plated rod, C45E rod, hard chrome piston rod, hard chrome bar, piston shaft and hard chromium rod for our customers. If you are interested in our hydraulic piston rod, precision linear shafts, cylinder chrome rod, hard chrome shaft, hard chrome plated rod, C45E rod, hard chrome piston rod, hard chrome bar, piston shaft and hard chromium rod welcome to contact us online. Related Keyword: Hydraulic Piston Rod, Cylinder Piston Rod