Chemical Composition: - Carbon: 0.05-0.15% - Manganese: 0.30-0.60% - Phosphorus: 0.035% max - Sulfur: 0.035% max - Silicon: 0.50-1.00% - Chromium: 1.00-1.50% - Molybdenum: 0.45-0.65% Mechanical Properties: - Tensile Strength: 75-100 ksi (515-690 MPa) - Yield Strength: 45-60 ksi (310-415 MPa) - Elongation: 18-22% in 8 in (200 mm) Physical Properties: - Density: 0.284 lb/in³ (7.9 g/cm³) - Melting Point: 2750°F (1510°C) Applications: - High-temperature services - Pressure vessels - Boilers - Heat exchangers - Piping - Construction equipment Equivalent Grades: - ASTM A387 GR 11 - ASME SA 387 GR 11 - EN 10028-2 13CrMo4-5 - DIN 17155 13CrMo4-4
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