Table of Content
- EN 31 Round Bar Specification
- EN 31 Steel Bright Bar Tempering Temperature Range
- Mechanical Properties of EN 31 BS970 Hot Rolled Bar Stock
- Weight Chart of EN 31 Round Bar
- EN 31 Grade Steel Black Bar Quenching
- List of Steel EN 31 Round Bar Types
- Chemical Composition of EN 31 Standard Flat Bar
- EN 31 Alloy Steel Cold Drawn Bar Hardness in HRc
- BS970 EN 31 Hexagonal Bar American Standard
- Steel EN 31 Rectangular Bar Physical Properties
DIN 100Cr6 Bright Bar used in allied Engineering Use, Refer Specification
Manufacturer of BS970 EN 31 Hexagonal Bar in India, Check Temperature Range
| Temperature | Hardness |
|---|---|
| °C | HRc |
| 250 | 60-59 |
| 200 | 62-61 |
| 150 | 63-62 |
| 300 | 57-56 |
Tensile Strength
750 N/mm²
Yield Stress
450 N/mm²
Elongation
30%
Modulus of elasticity
215 000 N/mm²
Reduction of Area
45%
Find ready Stock of EN 31 Standard Flat Bar in Cut to length, View Weight Chart
| Diameter | Weight per meter |
|---|---|
| mm | kg |
| 10 | 0.785 |
| 12 | 1.131 |
| 16 | 2.010 |
| 20 | 3.140 |
| 25 | 4.905 |
| 30 | 7.069 |
| 35 | 9.625 |
| 40 | 12.566 |
| 50 | 19.635 |
| Properties | Value | |
|---|---|---|
| 1st pre-heating | °C | up to. 400 in an air-circulating furnace |
| Hardening | °C | 800-820 |
| 2nd and 3rd | 800 – 900 | |
| Tempering | °C | at least twice 150-200 |
| Quenching | 810 °C Oil ,Quench | |
| Hardness after Teperature | HRC | 61 – 63 |
EN 31 Alloy Steel Flat Bar
Steel EN 31 Forged Bar
EN 31 Grade Steel Rounds
EN 31 BS970 Black Bar
EN 31 Steel Rod
BS970 EN 31 Square Bar
EN 31 Grade Cold Drawn Bar
EN 31 Medium Alloy Steel Bright Bar
Refer Chemical Composition of EN 31 Alloy Steel Cold Drawn Bar
Carbon
0.95 / 1.10
Manganese
0.40 / 0.70
Phosphorus
Max 0.040
Silicon
0.10 / 0.35
Sulfur
Max 0.050
Chromium
0.10 / 0.35
| Soft annealing | Hardness | Cooling |
|---|---|---|
| °C | HB | |
| 780-800 | max. 207 | Furnace |
| British | BS 970:1991 | 535A99 |
|---|---|---|
| BS 970:1955 | EN31 | |
| French | AFNOR | 100C6 |
| Swedish | SS | 2258 |
| German | DIN | 100CR6 |
| American | SAE / AISI | 52100 |
View Physical Properties & Impact resistance table of EN 31 BS970 Hot Rolled Bar Stock
Density
7.85 g/cm³
Modulus of Elasticity
210 GPa (30.5 x 10^6 psi)
Thermal Conductivity
45 W/m·K
Thermal Expansion
11.7 x 10^-6 /°C
Melting Point
1425-1540°C (2600-2800°F)
| Export to | Price changes and the expected delivery |
|---|---|
| Bangladesh | 5 % extra | 15 days |
| Bhutan | 5 % extra | 7 days |
| Nepal | 5 % extra | 7 days |
| Vietnam | 5 % extra | 10 days |
| Cambodia | 5 % extra | 9 days |