
SAE4140/AISI4140 Chrome Plated rod Chrome Shaft
Material:Material:AISI4140/SAE4140/SCM440/42CrMo/42CrMo4
Length: Max 20m
Shape: Round bar
Roughness: Ra <= 0.2u
OD Diameter: From 6mm to 800mm
Diameter tolerance:ISO f7/h8/g6
Heat treatment: 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)
Chrome thickness: As per request 20 to 100 micron
Protection:anti-rust oil on inside and outside surface, plastic caps in both ends.
SAE4140/aISI4140 Chrome Plated Rod Chrome Shaft Chemical Properties and Mechanical Properties
Performance Category | Specific Performance | Value |
---|---|---|
Chemical Composition | Carbon (C) | 0.38% – 0.43% |
Silicon (Si) | 0.15% – 0.30% | |
Manganese (Mn) | 0.75% – 1.0% | |
Phosphorus (P) | ≤ 0.035% | |
Sulfur (S) | ≤ 0.040% | |
Chromium (Cr) | 0.80% – 1.10% | |
Molybdenum (Mo) | 0.15% – 0.25% | |
Iron (Fe) | Balance | |
Physical Properties | Density | 7.85 g/cm³ |
Melting Point | 1416℃ | |
Mechanical Properties | Tensile Strength | 655 MPa |
Yield Strength | 415 MPa | |
Elastic Modulus | 190 – 210 GPa | |
Poisson’s Ratio | 0.27 – 0.30 | |
Elongation at Break (50mm Gauge Length) | 25.70% | |
Brinell Hardness | 197 | |
Knoop Hardness (Converted from Brinell Hardness) | 219 | |
Rockwell Hardness B (Converted from Brinell Hardness) | 92 | |
Rockwell Hardness C (Converted from Brinell Hardness) | 13 | |
Vickers Hardness (Converted from Brinell Hardness) | 207 |


4140 Chrome Plated Rod material, also known as AISI 4140 Chrome Plated Rod Chrome Shaft
AISI 4140, is a popular low alloy steel renowned for its excellent mechanical properties.
- High Strength: It offers high tensile and yield strength, making it suitable for applications that demand resistance to heavy loads and stress.
- Good Hardness: After proper heat treatment, 4140 can achieve a high level of hardness, enhancing its wear – resistance.
- Superior Toughness: Despite its high strength and hardness, 4140 maintains good toughness, reducing the risk of sudden failure under impact or dynamic loading.
- Good Machinability: This material has relatively good machinability, allowing for efficient manufacturing processes with standard machining tools.
Barra de acero cromado duro 4140/Varilla de cromo duro AISI4140 endurecida por inducción/Vástago de pistón con eje cromado duro SAE4140
/Varilla de acero cromado 42CrMo4/Eje de cilindro con barra cromada 4145/Varilla de cromo duro C45 endurecida por inducción/Varilla cromada pulida SAE1045

