Home ProductsStainless Steel Round Bar

Alloy Engineering Steel Bar EN24/4340/SNCM439/40CrNiMo

China Evergrowing Resources Co., Ltd. certification
I'm Online Chat Now

Alloy Engineering Steel Bar EN24/4340/SNCM439/40CrNiMo

Alloy Engineering Steel Bar EN24/4340/SNCM439/40CrNiMo
Alloy Engineering Steel Bar EN24/4340/SNCM439/40CrNiMo

Large Image :  Alloy Engineering Steel Bar EN24/4340/SNCM439/40CrNiMo

Product Details:
Place of Origin: China
Brand Name: Evergrowrs
Model Number: EN24/4340/SNCM439/40CrNiMo
Payment & Shipping Terms:
Minimum Order Quantity: 20ton
Price: USD 800-1200/Ton
Packaging Details: Standard seaworthy package
Delivery Time: 10-15 work days
Payment Terms: L/C, D/A, D/P, T/T
Supply Ability: 100 Ton/Tons per Month
Detailed Product Description
Standard: ASTM, ASME Diameter: 3mm~ 800mm
Length: 1 To 6 Meters, Custom Cut Length Surface: Bright
High Light:

EN24 Alloy Engineering Steel Bar


40CrNiMo Engineering Steel Bar


6M Bright Stainless Steel Round Bar

Alloy Engineering Steel Bar EN24/4340/SNCM439/40CrNiMo

Product Introduction

4340 alloy steel bar is used heavily in the aerospace industry due to its ultra-high strength. When heat treated it is known for its toughness while preserving good fatigue strength. For highly stressed parts it is excellent choice. It can be machined by all customary methods. This material is available in both vacuum melt (VM) and air melt (AM)

EN24 Engineering Steel is easy to treat and temper and is supplied hardened and tempered. The alloy offers a good combination of strength, ductility and wear resistance. It is a very high strength alloy engineering steel.



Chemical Composition

Carbon 0.38-0.43
Manganese 0.60-0.80
Phosphorus (max) 0.035
Sulfur (max) 0.04
Silicon 0.15-0.35
Nickel 1.65-2.00
Chromium 0.70-0.90
Molybdenum 0.20-0.30


Heat Treatment

Quenching Tempering
Heating Temperature/℃ Cooling Hardness/HRC Heating Temperature/℃ Cooling Hardness/HRC
820-840 Oil ≥53 450-650 Air 25-40


Mechanical Properties

Tensile strength (psi) 105,000 - 115,000
Yield strength (psi) 75,000 - 85,000
Elongation in 2” (%) 20 - 30
Reduction of area (%) 35 - 45
Brinell Hardness (BHN) 210 - 240


General Applications

  • Aircraft Landing Gear
  • Power Transmission Gears
  • Structural Use Applications


Evergrowing Resources CO.,Ltd

Evergrowing Resources Co., Limited was Located in Nanjing, China. We have engaged in import and export of all kinds of ferrous and nonferrous materials all over the world. Because we are top agent of several different steel mills in Asia and Europe, so we have ability to offer best quality products and services to our clients. Till now, we have supplied products and services in Asia, Europe, Africa, North America and South America. Following the trend of market development, we have built our special steel processing center in Jiangsu, China to do further processing on the products, such as heat treatment (QT, N, ANN), rough turned, CNC cutting and etc. We have extended our industrial train and enhanced the ability to provide the auxiliary item, and thus strengthened our market advantage.


Evergrowing aim:
Competitive price: try best to make best offer
Top quality: 100% comply with customer's standard
JIT delivery: Delivery on time for each order.
One station purchase:we try to supply the material with different condition to our customers.
After service: Response on any quality question and etc.

Contact Details
Evergrowing Resources Co., Ltd.

Contact Person: Steven.shu

Tel: 86-15601991332

Send your inquiry directly to us (0 / 3000)