420 Stainless Steel Pipe Description420 is a hardenable martensitic stainless steel that contains at least 12% chromium, just enough to provide corrosion resistance. It has good ductility in the annealed condition, but can be hardened to a minimum Rockwell hardness of 50 HRC, which is the highest ha
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Stainless Steel Pipe
420 Stainless Steel Pipe
- Date.November 1, 2024
- Category.Stainless Steel Pipe
- Keyword.Big fire special steel, high strength steel plate, steel industry supply and demand, steel suppliers
420 Stainless Steel Pipe Description
420 is a hardenable martensitic stainless steel that contains at least 12% chromium, just enough to provide corrosion resistance. It has good ductility in the annealed condition, but can be hardened to a minimum Rockwell hardness of 50 HRC, which is the highest hardness in the 12% chromium scale. Due to its hardening properties, 420 are not often welded, although this is possible. Martensitic stainless steel is designed for high hardness, and sometimes other properties will be affected to a certain extent. The corrosion resistance is lower than that of ordinary austenite grades, and its effective operating range is limited by its ductility loss at sub-zero temperatures and strength loss due to excessive tempering at high temperatures. The best corrosion resistance is obtained when the metal is hardened and subjected to surface grinding or polishing.
Product Parameters
Product Name 420 Stainless Steel Pipe Type Steel Pipe Outer diameter Round Tube 4mm-200mm Square Tube 10*10mm-100*100mm Rectangular Tube 10*20mm-50*100mm Wall Thickness 0.6mm-6.0mm Length 1-6 meters, Length can be customized Standard ASTM, AISI, JIS, GB, DIN, EN, etc. Surface Black, Bright Polished, Rough Turning, Matt Surface Treatment, No. 4. BA, etc. Scope of Application Common applications for stainless steel pipes include food processing, Textile operations, Breweries, Water treatment plants, Oil and gas processing, Fertilizers and pesticides, Chemical applications, Construction, Pharmaceuticals, Auto parts, etc. Certificate ISO, SGS, BV, etc. Production Technology Hot Rolling, Cold Rolling Edge Processing Edging, Trimming
Chemical Composition
C Si Mn Cr S P ≤ 0.15 ≤1.0 ≤1.0 12.0～14.0 ≤ 0.03 ≤ 0.04
Mechanical Properties
Tensile Strength Kb (MPa) Yield Strength σ0.2 (MPa) Elongation D5 (%) Hardness ≥634 ≥440 ≥20 Annealing≤ 223HB; quenching and tempering ≥ 192HB
Physical Performance
Density(g/cm³) Modulus of Elasticity(Gpa) Coefficient of Thermal Expansion(10-6/°C) Coefficient of Thermal Conductivity(W/m*K) Resistivity(ΜΩ. cm) 7.74 200 10.2 24.9 55
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