AISI 321H High Carbon Stabilized Stainless Steel

🧪 Chemical Composition

Element	Composition (%)
Carbon (C)	0.04 - 0.10
Manganese (Mn)	≤ 2.00
Silicon (Si)	≤ 0.75
Phosphorus (P)	≤ 0.045
Sulfur (S)	≤ 0.030
Chromium (Cr)	17.0 - 20.0
Nickel (Ni)	9.0 - 13.0
Titanium (Ti)	4×(C+N) min, 0.70 max
Nitrogen (N)	≤ 0.10
Iron (Fe)	Balance

⚙️ Mechanical Properties

Property	Value
Tensile Strength (Room Temperature)	≥ 515 MPa
Yield Strength (0.2% Offset)	≥ 205 MPa
Elongation (50mm gauge)	≥ 40%
Reduction of Area	≥ 50%
Hardness (Brinell)	≤ 217 HB
Impact Energy (Charpy V-notch, Room Temp)	≥ 68 J
Young's Modulus	200 GPa
Creep Strength (100,000h at 650°C)	35 MPa
Fatigue Limit (107 cycles)	240 MPa

🔬 Physical Properties

Property	Value
Density	7.90 g/cm³
Melting Point	1400-1450°C
Thermal Conductivity (20°C)	16.3 W/m·K
Thermal Conductivity (100°C)	17.8 W/m·K
Thermal Expansion (20-100°C)	17.2×10-6/K
Thermal Expansion (20-500°C)	18.4×10-6/K
Specific Heat Capacity	500 J/kg·K
Electrical Resistivity (20°C)	0.72 µΩ·m
Magnetic Permeability	1.02 µr (Non-magnetic)
Curie Temperature	Non-magnetic

📏 Product Specifications

Specification	Available Options
Product Forms	Bars, Rods, Plates, Sheets, Tubes, Pipes, Forgings, Castings
Bar Diameter Range	6mm - 300mm
Plate Thickness Range	3mm - 150mm
Sheet Thickness Range	0.5mm - 6mm
Tube Outer Diameter	6mm - 219mm
Standards Compliance	ASTM A240, A479, A312, EN 10088-2, JIS G4304, GB/T 1220
Surface Finishes	Hot Rolled, Cold Rolled, 2B, BA, No.4, HL, Mirror
Dimensional Tolerance	±0.1mm to ±0.5mm (depending on form and size)
Length Options	Standard lengths or cut to customer specifications