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standard export packing (inside:water proof paper,outside:steel covered with strips and pallets)
Cargo ready date
within 25-35 days after confirming orders
Delivery Time
About 5-7 days after receive the deposit.
1. Basic introduction
446 stainless steel is a high chromium ferritic stainless steel (chromium content of about 23-30%), with excellent high temperature oxidation resistance, corrosion resistance and good mechanical properties. Because of its high chromium content, it is especially suitable for high temperature vulcanization and oxidation environment, but its toughness is low, and it should be avoided in low temperature or impact environment.
2. Main parameters (typical values)
Item parameter value
Chemical composition of C 0.20% or less, Cr: 23-27% Mn 1.5% or less, Si 1.0% or less, P 0.04% or less, S 0.03% or less, N 0.25% or less
Density 7.7 g/cm³
Melting point 1425-1510°C
Tensile strength ≥515 MPa
Yield strength ≥275 MPa
Elongation ≥20%
Hardness (Brinell) ≤201 HB
Thermal conductivity 24 W/m·K (20°C)
Magnetic magnetic (ferrite structure)
3. Main features
High temperature oxidation resistance: can be used continuously below 1100°C, high temperature oxidation resistance is better than 304/316 stainless steel.
Corrosion resistance: It has good resistance to nitric acid, organic acid and vulcanization environment, but it is not as resistant to chloride corrosion as austenitic stainless steel.
Vulcanization resistance: Suitable for sulfur-containing fuel combustion environment (such as boilers, incinerators).
Disadvantages: low temperature brittleness (avoid using below 0°C), poor welding performance, need to control the heat input.
Chemical equipment: nitric acid production equipment, pickling tank (avoid chlorine-containing media).
Others: solar thermal power components, automotive exhaust system high temperature section.
7. Precautions
Welding: A low heat input process, such as TIG welding, is required and preheated to 150-200°C to reduce the risk of cracking.
Processing: Annealing (780-850°C) is recommended after cold forming to restore corrosion resistance.
Avoid: chloride-containing solution and low temperature impact on the environment.
For more specific performance data or selection recommendations, refer to ASTM A240/A240M or consult the material supplier.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter
Total Annual:
>1000000
Employee Number:
>100
Ecer Certification：
Verified Supplier
Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative... Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative...
