DIN 17102 StE460 Normalized Fine Grain High-Strength Structural Steel
ASME SA514 Grade E (SA514GrE) Quenched & Tempered High-Strength Carbon Steel Plate
Complete data for ASME SA514 Grade E carbon steel plate: chemical composition, mechanical properties, thermal and electrical physical properties, international equivalents, and application guide for engineers and buyers.
Cutting, welding, cold forming, machining, bending (in tempered condition)
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DIN 17102 StE460 Normalized Fine Grain High-Strength Structural Steel Introduction
ASME SA514 Grade E is a high-strength, low-alloy quenched and tempered carbon steel plate produced in accordance with the ASME SA514/SA514M specification. It belongs to the chromium-molybdenum-boron alloy system, designed to deliver a minimum yield strength of 690 MPa (100 ksi) and a tensile strength range of 690–895 MPa (100–130 ksi) in thicknesses up to 63.5 mm (2.5 in). This grade offers an excellent combination of high strength, good weldability, and adequate notch toughness when proper welding procedures are followed.
- Key features: high load-carrying capacity, weight savings through reduced section thickness, good formability in the quenched and tempered condition.
- Typical characteristics: low carbon content for weldability, microalloying with chromium and molybdenum for hardenability, boron for enhanced strength.
- Frequently used in demanding structural applications where weight reduction without sacrificing strength is critical.
DIN 17102 StE460 Normalized Fine Grain High-Strength Structural Steel Chemical Composition
The chemical composition of SA514 Grade E is precisely balanced to achieve the required mechanical properties after quenching and tempering. Alloying elements such as chromium, molybdenum, and boron increase hardenability, while carbon is kept low to maintain weldability. Phosphorus and sulfur are restricted to ensure cleanliness and toughness. The following table lists the specified limits per ASME SA514/SA514M.
| Element | Content (%) | Remarks |
|---|---|---|
| C | 0.12 - 0.20 | Carbon |
| Mn | 0.40 - 0.70 | Manganese |
| P | ≤ 0.025 | Phosphorus (max) |
| S | ≤ 0.025 | Sulfur (max) |
| Si | 0.20 - 0.35 | Silicon |
| Cr | 1.40 - 2.00 | Chromium |
| Mo | 0.40 - 0.60 | Molybdenum |
| B | 0.001 - 0.005 | Boron |
DIN 17102 StE460 Normalized Fine Grain High-Strength Structural Steel Thermal and Electrical Physical Properties
The following physical properties are representative for SA514 Grade E steel. Actual values may vary slightly depending on the specific composition, heat treatment, and test methodology. These data are useful for design calculations involving heat transfer, thermal expansion, and electrical conductivity.
| Property | Typical Value | Unit | Test Condition / Symbol |
|---|---|---|---|
| Density (ρ) | 7.85 | g/cm³ | At room temperature |
| Elastic Modulus (E) | 205 | GPa | At 20 °C |
| Shear Modulus (G) | 80 | GPa | Typical for steel |
| Poisson's Ratio (ν) | 0.3 | - | In elastic range |
| Thermal Expansion Coefficient (α) | 12.0 × 10⁻⁶ | K⁻¹ | Between 20 °C and 100 °C |
| Thermal Conductivity (λ) | 45 | W/(m·K) | At 20 °C |
| Specific Heat Capacity (c) | 475 | J/(kg·K) | At 20 °C |
| Electrical Resistivity (ρ_e) | 0.23 × 10⁻⁶ | Ω·m | At 20 °C |
DIN 17102 StE460 Normalized Fine Grain High-Strength Structural Steel Mechanical Properties
Tensile testing is performed on transverse or longitudinal specimens according to the standard. Properties are valid for plate thicknesses ≤ 63.5 mm (2.5 in). The high yield strength and sufficient elongation ensure structural reliability under static loading. Bend testing confirms the material's ability to withstand forming without cracking.
| Property | Required Value | Unit | Test Condition / Remarks |
|---|---|---|---|
| Yield Strength (ReH) | ≥ 690 | MPa | Thickness ≤ 63.5 mm, 0.2% offset |
| Tensile Strength (Rm) | 690 - 895 | MPa | Thickness ≤ 63.5 mm |
| Elongation (A) | ≥ 18 | % | Gage length 50 mm (2 in), thickness ≤ 19 mm |
| Elongation (A) | ≥ 14 | % | Gage length 50 mm (2 in), thickness > 19 to 63.5 mm (typical min.) |
| Bend Test (180°) | Bend radius = 2t | - | Thickness ≤ 20 mm; t = specimen thickness |
| Bend Test (180°) | Bend radius = 2.5t | - | Thickness > 20 to 63.5 mm |
DIN 17102 StE460 Normalized Fine Grain High-Strength Structural Steel Fully Equivalent Material Standards and Substitutable Grades
| Country/Region | Standard | Grade | Remarks |
|---|---|---|---|
| USA | ASTM A514/A514M | Grade E | Identical chemical and mechanical requirements; directly interchangeable with ASME SA514 Grade E. |
DIN 17102 StE460 Normalized Fine Grain High-Strength Structural Steel Application Introduction
ASME SA514 Grade E is engineered for structural and heavy machinery applications where high static and dynamic loads demand a superior strength-to-weight ratio. Its good weldability and impact toughness make it suitable for critical welded structures operating under severe conditions. Typical usage covers a wide range of industries that require durability, reliability, and reduced structural weight.
Product Applications: Mobile crane booms and lattice structures, Dump truck bodies and mining truck trays, Excavator arms and buckets, Offshore platform beams and nodes, High-strength structural frames and chassis, Penstock and pressure vessel shells, Heavy-duty wear plates in abrasive environments
Processed into products: Boom sections and telescopic cylinders, Welded box sections for heavy machinery, Flanges and web plates in built-up girders, Load-bearing brackets and lugs, High-strength bolted splice plates, Cutting edges and liners (when surface hardness is not primary requirement), Structural nodes and cast-welded joints
Application industries: Heavy equipment and earthmoving machinery, Crane and lifting equipment, Offshore and marine engineering, Bridge construction, Mining and material handling, Pressure vessels and storage tanks (subject to additional requirements), Transportation (truck frames, trailers)
DIN 17102 StE460 Normalized Fine Grain High-Strength Structural Steel Similar / Comparable Alternative Materials
| Country/Region | Standard | Grade | Remarks |
|---|---|---|---|
| Europe | EN 10025-6 | S690Q (1.8931) | Quenched and tempered structural steel with similar minimum yield strength (690 MPa); different alloy concept (Cr-Mo vs. multi-microalloyed). Verify notch toughness and weldability. |
| International | ISO 4950-2 | E690DD / E690QL | High yield strength flat products with comparable strength level; DD for thermomechanical rolled, QL for quenched and tempered. |
| Japan | JIS G 3128 | SHY685 | High yield strength steel for welded structures; yield ≥685 MPa; alloy design may differ. |
| China | GB/T 16270 | Q690D / Q690E | High strength structural steel plates with minimum yield 690 MPa; delivery condition can be Q&T or TMCP; check thickness limitations and chemistry. |
Notes:
Special considerations:
- Preheating and interpass temperature control are critical during welding to prevent hydrogen cracking. Low-hydrogen electrodes and processes are strongly recommended.
- Post-weld heat treatment (PWHT) is generally not required but may be applied for stress relief with careful temperature control to avoid strength reduction.
- For thicknesses greater than 63.5 mm, the mechanical property requirements may change; consult the full ASME SA514/SA514M standard.
- Charpy V-notch impact test requirements (temperature and absorbed energy) should be agreed upon at the time of order if needed.
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