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Round Bar Stock Steel Product Description
40CrNiMo alloy steel rods are high-quality alloy structural steel, also called alloy steel. It is a steel made by appropriately adding one or several alloy elements (total content not exceeding 5%) on the basis of high-quality carbon structural steel. kind.
40CrNiMo alloy structural steel, implementation standard: GB/T 3077-1999, has high strength, toughness, good NMenability and stability against overheating, but has high white point sensitivity and temper brittleness. The general specifications include forged steel plates, hot-rolled round steel, wire rods, etc. The use effect is significantly improved after quenching and tempering.
40CrNiMo hot rolled alloy steel round bar is generally used for quenched and tempered parts that require high strength, high toughness, large cross-section size, and more important parts, such as the transmission eccentric shaft of a horizontal forging machine, the crankshaft of a forging press, etc. It is used after quenching and tempering to make important parts that require good plasticity, high strength and large size.
round steel rod

Round Bar Product Details
40CRNIMO Round Stock Steel Chemical Component:
| C | Si | Mo | Mn | S | P | Cr | Ni | Cu |
| 0.37~0.44 | 0.17~0.37 | 0.15~0.25 | 0.50~0.80 | ≤0.025 | ≤0.025 | 0.60~0.90 | 1.25~1.65 | ≤0.25 |
40CRNIMO Round Rod Mechanical Behavior:
|
Tensile strength σb |
Yield strength σs |
Elongation δ5 (%) |
Area reduction ψ (%) |
Hardness HV |
Impact energy Akv (J) |
Impact toughness value αkv (J/cm2) |
Sample size |
| ≥980(100) | ≥835(85) | ≥12 | ≥55 | ≤269 | ≥78 | ≥98(10) | 25mm |
solid round bar

Gnee Group Introduction And Customer Visits
Strict quality control system and perfect after-sales service system are the primary issues we always pay attention to, which can guarantee and track the quality of our products from the aspects of raw material procurement, production process, finished products and after-sales service.
GNEE is happy to provide you with the best prices and product suggestions, including goods inventory and applications; we will always provide you with the latest market price information. Welcome to visit our company, we look forward to cooperating with you!
round steel rod

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