 Product categoryFriends links |
|
 Click on the image to check the artwork |
|
| product: |
view count: 1494340 Round Steel Bars |
| unit price: |
Negotiable |
| min amount: |
|
| amount: |
|
| period for delivery: |
Consignment Deadline days |
| Expiry date: |
Long Effective |
| last update: |
2017-10-07 05:51 |
| |
 |
|
4340 Round Steel Bars,
Steel Grade: Alloy Steel 40CrNiMo/1.6563,
Specification:
Diameter (mm) Length (mm)
Round bars: 12~3000 4000~6000 Hot rolled
280~1000 3000~5800 Forged
Thickness(mm) Width(mm) Length (mm)
Flat bars/Blocks 20~600 50~1000 1000~5800
Delivery condition:
1. EAF+LF+VD, rolled /forged, UT pass
2. Surface: Black surface, turned surface and milling surface according to customer's requirements.
3. Heat treatment such as normalizing or annealing or Q/T can be done according to customer's technical specifications.
4340 Round Steel Bars,
Grade: Alloy Steel 40CrNiMo/4340/SCM439/4CrMo4/1.6563
|
Chemical Composition |
|
C |
Si |
Mn |
Cr |
Mo |
P |
S |
Cu |
Ni |
|
0.37-0.44 |
0.17-0.37 |
0.50-0.80 |
0.60-0.90 |
0.15-0.25 |
≤0.025 |
≤0.025 |
≤0.30 |
≤0.30 |
Mechanical Properties |
|
Tensile Strength
Rm,MPa |
Yield Strength
Rel,MPa |
Elongation
A,% |
Reduction
Z,% |
I mpacting Energy
Aku,J |
HBW
≤
After Annealing |
|
≥980 |
≥835 |
≥12 |
≥55 |
≥78 |
269 |
|
|
