4140 hard chrome plated rod
Steel 4140 is AISI standard grade, it is a kind of alloy structural steel, equivalent to China standard GB 42CrMo.
SAE 4140 alloy steel has high fatigue strength and low notch sensitivity, high low temperature impact toughness, no obvious temper brittleness, and is mainly used in the quenched and tempered state. It is used to manufacture high-strength parts and parts with large cross-sections and other stress-bearing components under impact load. Such as high strength Hydraulic cylinder rods, penaumatic cylinder rods, the transmission eccentric shaft of the horizontal forging machine, the crankshaft of the forging press, etc.
4140 chrome plated rod is manufactured through SAE 4140 steel bar, by using high precision centerless grinding and polishing methods, and then chrome plated to a min. plating thickness of 20 microns (0.0008″), 25 microns (0.001″), or other. The chrome plating layer provides corrosion resistance and a highly reflective appearance.
4140 chrome plated rods are used widely by the hydraulic industries and pneumatic industries, and is also widely usually used for applications where high yield strength and tensile strength is required.
- Description
- Details
- Mechanical properties
- Inquiry
4140 hard chrome plated rod is a kind of high strength hard chrome plate rod made of material SAE 4140 steel rod. Our factory is a high quality China 4140 chrome plated rod supplier, we manufacturer and supply a wide size range of hard chrome plated 4140 steel bars, from metric size 10 mm to 500 mm.
Product Name: SAE 4140 hard chrome plated rod
Material: SAE4140 /AISI4140
Size Range: Dia. 10 mm – Dia. 500 mm
Tolerance: ISO f7, h8, g6 on request.
Length: random length & cut length, max. length upto 12m
Surface Roughness: Max Ra 0.2 μm
Chrome Plated thickness: min. 20 microns, 25 microns, 30 microns, 50 microns
Surface Hardness: Min. 900HV
Packing method:
Supplied in cardboard tubes for protection on outer surface, and then put in wooden cases
Delivery Conditions available:
Hard Chrome Piston Rod ( HRC 15-20)
Quenched & Tempered (Q+T) Rod (HRC 28-32)
Induction Hardened Rod (HRC 55-62)
Q+T Induction Hardened Rod (HRC 60-65)
Below is the chemical composition of 4140 chrome plated rod for shafts.
SAE 4140 | C% | Si% | Mn% | P% | S% | Cr% | Mo% |
Min | 0.36 | 0.1 | 0.65 | 0.75 | 0.15 | ||
Max | 0.44 | 0.4 | 1.1 | 0.04 | 0.04 | 1.2 | 0.35 |
Here below is the mechanical properties of SAE 4140.
4140 | Yield strength | Tensile Strength | Elongation | Hardness HB |
Min | 800 Mpa /115K psi | 900 Mpa /130K psi | 20% | 270 HB |