Metal Characteristics Of The E6013 Electrode
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Product Introduction
| Characteristic Category | Detailed Parameters |
|---|---|
| Chemical Composition (mass fraction, %) | - Carbon (C): Standard upper limit ≤0.12; typical measured values 0.067-0.095 (reduces cold cracking risk and ensures weldability). - Manganese (Mn): Standard range 0.3-0.6; typical measured values 0.54-0.58 (strengthens the matrix and improves toughness). - Silicon (Si): Standard upper limit ≤0.35; typical measured values 0.22-0.28 (acts as a deoxidizer and enhances molten pool fluidity). - Sulfur (S): Standard upper limit ≤0.035; typical measured values ≤0.015 (strictly controlled to reduce hot cracking). - Phosphorus (P): Standard upper limit ≤0.04; typical measured values ≤0.018 (reduces low-temperature brittleness risk). - Other impurities: Copper (Cu) ≤0.30, Nickel (Ni) ≤0.30, Chromium (Cr) ≤0.20, Molybdenum (Mo) ≤0.10 (all residual elements; total content ≤0.5%). |
| Mechanical Properties | - Tensile strength: Standard requirement 400-560 MPa (58,000-81,200 psi); typical measured values 480-520 MPa (69,600-75,400 psi). - Yield strength: Standard requirement ≥306 MPa (44,400 psi); typical measured values 410-450 MPa (59,500-65,300 psi). - Elongation (50mm gauge length): Standard requirement ≥22%; typical measured values 27%-30% (exhibits good ductility, reducing welding stress cracking). - Impact energy (V-notch): Standard requirement ≥27 J at -30°C; typical measured values 28-35 J at -30°C, and 40-50 J at -20°C (ensures low-temperature toughness for cold-environment operations). |
| Physical Characteristics | - Brinell hardness (HBW): Typical value 140-160 (relatively soft, facilitating subsequent processing such as grinding and cutting). - Melting point range: 1480-1520°C (close to low-carbon steel base metal, reducing fusion zone embrittlement). - Density: 7.8-7.85 g/cm³ (consistent with steel base metal, avoiding stress concentration due to density differences after welding). - Coefficient of linear expansion: 11.5-12.0 × 10⁻⁶/°C (20-100°C), matching low-carbon steel to minimize welding deformation. |
| Deposition Efficiency & Weld Formation | - Deposition efficiency: 53%-63% (for 4.0mm diameter electrodes; 0.53-0.63kg of deposited metal can be obtained from 1kg of electrodes). - Weld formation: Reinforcement height 2-4mm (flat welding), weld bead width-to-depth ratio 1.5-2.0, surface with fine fish-scale patterns, free of defects such as pores and slag inclusions (compliant with AWS D1.1 appearance acceptance standards). |
| Standard Basis | Primarily complies with the requirements for E6013 deposited metal in AWS A5.1 Specification for Carbon Steel Electrodes for Shielded Metal Arc Welding, and also meets corresponding indicators in GB/T 5117 (E4313) and EN ISO 2560-A (E 35 0 RA 12). Verification can be conducted by third-party testing institutions (e.g., SGS, TÜV). |
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