Products Description
S235JR is a low-carbon, high-tensile-strength structural steel widely used in construction, engineering, and machinery manufacturing. The "JR" (Joule Rating) indicates the material's energy absorption capacity in impact tests, reflecting its toughness and durability.
S235JR has a yield strength of ≥ 235 MPa, tensile strength ranging from 360 to 510 MPa, elongation ≥ 26%, and impact toughness of ≥ 27 J at –20°C, making it reliable under heavy loads and vibrating conditions.
This steel offers excellent machinability and can be processed through cutting, stamping, bending, or welding (TIG, MIG, or manual arc welding), maintaining high strength and toughness after welding.
S235JR angle steel is commonly used in building frameworks, steel structure factories, bridges, machinery supports, and storage racks. With its high toughness, durability, and good workability, S235JR has become an indispensable and versatile material in construction and engineering applications.
Products Specification
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Product Name |
Angle steel Bar |
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Standard |
S275JR/S275J0/S355J0/S355J2/A283/A516/A572/A36/SS400 |
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Shape |
Equal and Unequal |
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thickness |
3-30mm |
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width |
20-200mm |
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length |
6m,9m,12m |
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Surface treatment |
Black/Galvanized |
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Technique |
Hot Rolled |
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Application |
Construction,Structure |
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MOQ |
5TON |
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package |
Standard Seaworthy Package |
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Delivery time |
within 15days |
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payment term |
TT30%/LC |
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Origin |
CHINA |
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Chemical Composition
| Element (Symbol and Name) | Percentage Range (%) |
|---|---|
| C (Carbon) | 0.12 - 0.20 |
| Mn (Manganese) | 1.00 - 1.60 |
| Si (Silicon) | 0.10 - 0.40 |
| P (Phosphorus) | ≤ 0.045 |
| S (Sulfur) | ≤ 0.045 |
Mechanical Properties
| Property | Condition/Temper | Typical Value/Range (Metric - SI Units) | Typical Value/Range (Imperial Units) | Reference Standard for Test Method |
|---|---|---|---|---|
| Yield Strength (0.2% offset) | Hot Rolled | 235 MPa | 34.1 ksi | EN 10002-1 |
| Tensile Strength | Hot Rolled | 360 - 510 MPa | 52.2 - 73.8 ksi | EN 10002-1 |
| Elongation | Hot Rolled | ≥ 26% | ≥ 26% | EN 10002-1 |
| Reduction of Area | Hot Rolled | ≥ 50% | ≥ 50% | EN 10002-1 |
| Hardness (Brinell) | Hot Rolled | ≤ 170 HB | ≤ 170 HB | EN 10003-1 |
| Impact Strength | Charpy V-notch | ≥ 27 J at -20°C | ≥ 20 ft-lbf at -4°F | EN 10045-1 |
Physical Properties
| Property | Condition/Temperature | Value (Metric - SI Units) | Value (Imperial Units) |
|---|---|---|---|
| Density | Room Temperature | 7850 kg/m³ | 490 lb/ft³ |
| Melting Point | - | 1420 - 1460 °C | 2588 - 2660 °F |
| Thermal Conductivity | Room Temperature | 50 W/(m·K) | 34.5 BTU/(hr·ft²·°F) |
| Specific Heat Capacity | Room Temperature | 490 J/(kg·K) | 0.117 BTU/(lb·°F) |
| Electrical Resistivity | Room Temperature | 0.0000017 Ω·m | 0.0000017 Ω·ft |
| Coefficient of Thermal Expansion | Room Temperature | 11 x 10⁻⁶ /K | 6.1 x 10⁻⁶ /°F |
Products Application
S235JR is a low-carbon, low-alloy structural steel widely used in construction, automotive manufacturing, machinery, and shipbuilding due to its excellent mechanical properties and ease of fabrication. It has a yield strength of ≥235 MPa, tensile strength ranging from 360 to 510 MPa, elongation of ≥26%, and impact toughness of ≥27 J at –20°C, making it reliable under dynamic loads and vibration conditions.
This steel is easy to cut, stamp, bend, and weld, and can be processed using MIG, TIG, or manual arc welding, while maintaining good strength and toughness after welding.
With its combination of high strength, good toughness, workability, and cost-effectiveness, S235JR is widely applied in building frameworks, bridges, automotive chassis, machinery supports, ship structures, and storage racks, making it an indispensable general-purpose structural steel in engineering and industrial applications.
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