DIN 17102 WStE460 High-Strength Steel Coil
DIN 17102 WStE460 High-Strength Steel Coil | Properties & Substitutes
Complete technical data for WStE460 steel coil per DIN 17102: chemical composition, mechanical and thermal properties, international equivalents, and typical applications.
Hot rolling, normalizing (or normalizing rolling), welding
- Phone : +8618037372205
- Email : [email protected]
- WhatsApp: Contact via Whtsapp
- WeChat: +8618037372205
DIN 17102 WStE460 High-Strength Steel Coil Introduction
WStE460 is a normalized or normalized rolled weldable fine-grain structural steel defined by DIN 17102. It belongs to the carbon and low-alloy high-strength group, offering a minimum yield strength of 460 MPa with excellent toughness and weldability. The micro-alloying with elements such as niobium, vanadium and titanium ensures fine grain structure and improves both strength and low-temperature impact properties.
- Key features: high yield/tensile ratio, good ductility, guaranteed notched‑bar impact energy at -20°C.
- Available forms: hot‑rolled coil, cut‑to‑length plate, strip.
- Typical applications: heavy welded structures, bridges, crane booms, pressure vessels, offshore engineering.
The standard DIN 17102 is now superseded by EN 10025‑3; however, WStE460 remains a common designation when specifying these properties.
DIN 17102 WStE460 High-Strength Steel Coil Chemical Composition
Ladle analysis limits according to DIN 17102. Fine grain practice is achieved by sufficient total aluminium or other grain refining elements. The carbon equivalent value (CEV) ensures good weldability; typical CEV ≤ 0.45% for thicknesses ≤ 16 mm.
- Altotal ≥ 0.020 % is mandatory for fine grain treatment.
- Optional elements Nb, V, Ti may be added singly or in combination, but the sum Nb+V+Ti ≤ 0.12 % unless otherwise agreed.
| Chemical Element | Standard Value (wt%) | Remarks |
|---|---|---|
| Carbon (C) | ≤ 0.20 | Max |
| Silicon (Si) | ≤ 0.60 | Max |
| Manganese (Mn) | 1.00 – 1.70 | Range |
| Phosphorus (P) | ≤ 0.030 | Max |
| Sulfur (S) | ≤ 0.025 | Max |
| Aluminium (Altotal) | ≥ 0.020 | Min, for fine grain treatment |
| Niobium (Nb) | ≤ 0.05 | Max, optional grain refiner |
| Vanadium (V) | ≤ 0.10 | Max, optional |
| Titanium (Ti) | ≤ 0.05 | Max, optional |
| Nickel (Ni) | ≤ 0.80 | Max, residual or intended addition |
| Molybdenum (Mo) | ≤ 0.10 | Max |
| Nitrogen (N) | ≤ 0.020 | Max |
| CEV (Ceq) | ≤ 0.45 (t≤16mm) | For weldability, typical |
DIN 17102 WStE460 High-Strength Steel Coil Thermal and Electrical Physical Properties
These physical properties are representative for low‑alloy structural steels of this grade. Values are given at room temperature unless otherwise noted. Slight variations may occur depending on exact composition and heat treatment.
- Density, elastic moduli and Poisson's ratio are typical for steel.
- Thermal expansion and conductivity are crucial for design under thermal loads.
| Property | Typical Value | Unit | Test Condition |
|---|---|---|---|
| Density (ρ) | 7.85 | g/cm³ | 20°C |
| Elastic modulus (E) | 210 | GPa | 20°C, static |
| Shear modulus (G) | 81 | GPa | 20°C, calculated |
| Poisson's ratio (ν) | 0.30 | — | Linear elastic range |
| Thermal expansion coefficient (α) | 11.0 × 10-6 | K-1 | 20–100°C |
| Thermal conductivity (λ) | 50 | W/(m·K) | 20°C |
| Specific heat capacity (cp) | 460 | J/(kg·K) | 20°C |
| Electrical resistivity (ρe) | 0.20 – 0.30 | µΩ·m | 20°C |
DIN 17102 WStE460 High-Strength Steel Coil Mechanical Properties
Mechanical properties are guaranteed for the normalized (+N) condition. Values apply to thickness ≤ 16 mm for flat products unless otherwise stated. The impact test is performed on longitudinal Charpy‑V specimens at -20°C, with a minimum average absorbed energy of 27 J.
- For thickness > 16 mm, yield and tensile strength values may be reduced; consult the full standard.
- Bend test: 180° bending with mandrel diameter 3 × thickness, no cracks shall occur.
| Property | Standard Requirement | Unit | Test Condition |
|---|---|---|---|
| Upper yield strength (ReH) | ≥ 460 | MPa | Room temperature, t ≤ 16 mm, transverse |
| Tensile strength (Rm) | 560 – 730 | MPa | Room temperature, t ≤ 16 mm, transverse |
| Elongation after fracture (A) | ≥ 17 | % | Gauge length L0=5.65√S0, longitudinal |
| Impact energy (KV2) | ≥ 27 (average of 3 tests) | J | -20°C, Charpy‑V, longitudinal |
| Bending test (180°) | Mandrel diameter d = 3t | — | t = specimen thickness, no cracks |
DIN 17102 WStE460 High-Strength Steel Coil Complete Equivalent Material Standards & Substitutable Grades
| Country / Region | Standard | Designation | Remarks |
|---|---|---|---|
| Europe (EN) | EN 10025-3:2004 | S460N | Direct replacement; normalized, min. ReH 460 MPa, impact -20°C |
| France | NF EN 10025-3 | S460N | Identical to EN |
| United Kingdom | BS EN 10025-3 | S460N | Identical to EN |
| Italy | UNI EN 10025-3 | S460N | Identical to EN |
| Japan | JIS G 3106 | SM570 | Comparable yield class (570 MPa tensile), not identical |
| USA | ASTM A572/A572M | Grade 65 | Min. yield 450 MPa; slightly lower strength class |
| International (ISO) | ISO 4950-2:1995 | FeE460KTM | High yield strength structural steel, thermomechanical rolled, similar concept |
DIN 17102 WStE460 High-Strength Steel Coil Application Introduction
WStE460 steel coil and cut plates are designed for load‑bearing welded constructions where high strength combined with good toughness and weldability is essential. It is particularly suited for dynamic and low‑temperature service.
- Preferred welding processes: SMAW, GMAW, SAW with low‑hydrogen electrodes.
- Preheating may be required depending on thickness and carbon equivalent.
- Not intended for hot‑dip galvanising stress‑relieved structures without prior agreement.
Product Applications: Welded bridge girders and box sections, Crane booms and mobile crane chassis, Offshore platform decks and legs, Heavy‑duty truck frames, Pressure vessel shells, Tubular structures for telescopic booms
Processed into products: Flanges and webs of welded beams, Welded hollow sections for columns, Reinforcement ribs and stiffeners, Lifting lugs and load‑bearing brackets, Flame‑cut blanks for further machining, Roll‑formed profiles for structural frames
Application industries: Heavy engineering (cranes, earth‑moving equipment), Bridge and structural engineering, Shipbuilding and offshore structures, Pressure vessel and boiler fabrication, Railway vehicle manufacturing, Wind turbine towers
DIN 17102 WStE460 High-Strength Steel Coil Similar / Approximate Substitute Materials
| Country / Region | Standard | Designation | Remarks |
|---|---|---|---|
| Germany (superseded) | DIN 17102 | WStE500 | Higher strength variant (yield 500 MPa), similar fine grain concept |
| Europe | EN 10025-4 | S460ML | Thermomechanical rolled, better weldability, lower CEV, -50°C impact |
| USA | ASTM A656/A656M | Grade 80 | High-strength low-alloy (yield 550 MPa) by controlled rolling |
| India | IS 8500 | Fe 570 (E 450) | Medium and high strength structural steel, comparable tensile range |
| Russia | GOST 19281 | 16G2AF | Low-alloy steel, yield ~450 MPa, normalized, with vanadium and nitrogen |
Notes:
Important: DIN 17102 has been officially withdrawn and replaced by EN 10025‑3. For new projects, it is recommended to specify S460N or S460ML according to EN 10025‑3/‑4. When ordering WStE460 to the old standard, ensure all acceptance test certificates (3.1 or 3.2 per EN 10204) clearly state the required impact test temperature and any supplementary treatments.
- Share
