Description
EN353 – BRIGHT BAR Grade Introduction:
We specialize in manufacturing EN353 Steel Bright Round Bars from high-quality billets and blooms. These round bars are designed for machinery and auto components, ensuring compliance with industry standards. EN353 round bars are supplied with test certificates and can be provided in bulk or retail quantities based on customer requirements. EN353 alloy steel round bars are widely used across various industries for their high tensile strength, ductility, and wear resistance.
EN353 is a high-strength steel alloy that is hardened and tempered before supply. It contains nickel, chromium, and molybdenum, which contribute to its high tensile strength and resistance to wear. The steel also maintains good impact resistance at low temperatures and is ideal for elevated temperature applications.
EN353 – BRIGHT BAR Grade Application:
EN353 bright bars are commonly used in various automobile applications such as:
- Heavy-duty gears
- Shafts
- Pinions
- Camshafts
- Gudgeon pins
EN353 – BRIGHT BAR Equivalent Grades:
| Standard | Equivalent Grades |
|---|---|
| British BS 970:1991 | 815M17 |
| British BS 970:1955 | EN353 |
| German DIN | 20NiCrMo5 |
| French AFNOR | 20NCD5 |
| Swedish SS | 2523 |
| European Steel Name | 17NiCrMoS6-4 |
| European Standard EN10277 | EN10277-4 |
Additional Grades Available:
We supply additional steel grades such as EN1A, EN3B, EN8, EN24, EN31, and other carbon and alloy steels like 42CrMo4, HCHCR, D2, H13, etc.
EN353 – BRIGHT BAR Chemical Composition:
| Element | C | Si | Mn | P (Max) | S (Max) | Cr | Mo | Ni |
|---|---|---|---|---|---|---|---|---|
| Content % | 0.10-0.20 | 0.10-0.35 | 0.50-1.00 | 0.040 Max | 0.040 Max | 0.75-1.25 | 0.08-0.15 | 1.00-1.50 |
EN353 – BRIGHT BAR Mechanical Properties:
| Property | Value |
|---|---|
| Hardening Temperature | 840-870°C |
| Quenching Medium | Oil |
| Tempering Temperature | 150-200°C |
| Brinell Hardness | 150-200 |
| Tensile Strength (MPa) | 680-1280 (depending on section) |
| Yield Stress (MPa) | 440-1050 (depending on section) |
| Elongation (%) | 10-22 |
| ISO V Impact (Joule) | 7-30 |
| Proof Stress (0.2% MPa) | 495-985 (depending on section) |
EN353 – BRIGHT BAR Hardness:
EN353 steel offers a Brinell hardness of HB 270.
EN353 – BRIGHT BAR Heat Treatment:
Hardening involves heating the steel to 780-820°C and quenching in oil. This provides high hardness, wear resistance, and strength. Tempering is conducted by reheating to 150-200°C, soaking for 1-2 hours per 25mm of section, and then cooling in air, achieving a hardness of 62-64 HRC after tempering.
EN353 – BRIGHT BAR Physical Properties:
| Property | Value |
|---|---|
| Thermal Conductivity (20°C) | 11.3 W/mK |
| Density | 8.08 g/cm³ |
| Density (lb/in³) | 0.292 lb/in³ |
EN353 – BRIGHT BAR Thermal Properties:
| Temperature (°C) | 20 | 350 | 700 |
|---|---|---|---|
| Thermal Conductivity | 11.3 W/mK | 13.3 W/mK | 14.5 W/mK |
EN353 – BRIGHT BAR Forging Properties:
EN353 steel offers an excellent combination of ductility, strength, and wear resistance, making it a highly preferred choice for heavy-duty industrial applications. Forging is performed between 780-820°C followed by oil quenching for hardening.
EN353 – BRIGHT BAR Stress Relieving:
Stress relieving is performed by heating to 150-200°C and cooling in a furnace to minimize internal stresses. Pre-heating involves steps at 400°C, followed by further pre-heating between 780-805°C.
EN353 – BRIGHT BAR Normalizing:
Normalizing involves heating the steel to around 820°C and then air-cooling to achieve a uniform grain structure.
EN353 – BRIGHT BAR Annealing:
Annealing is carried out at 630-670°C, allowing slow cooling for optimal machinability.
EN353 – BRIGHT BAR Density:
The density of EN353 bright bars is 8.08 g/cm³ or 0.292 lb/in³.
EN353 – BRIGHT BAR Machinability:
EN353 bright bars have a machinability rating of 75, making them highly suitable for cutting and shaping operations.
EN353 – BRIGHT BAR Welding:
EN353 requires pre- and post-heat treatment precautions during welding to avoid cracking or distortion.
Supply Range:
Mumbai Ahmedabad, Amaravathi, Ambattur, Bangalore, Belgaum, Chennai, Chittoor, Coimbatore, Dindigul, Mysore, Nellore, Hyderabad, Kochi, Mangalore, Tirupur, Tuticorin, Madurai, Andhra Pradesh, Karnataka, Puducherry, Kerala, Tamil Nadu, Telangana, Visakhapatnam, Kochi, Kerala, Hubli-Dharwad, Karnataka
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