Stainless Steel Bar
Stainless Steel Bar
420 Stainless Steel Bar
420 stainless steel is a medium-carbon stainless steel composed of chromium, carbon and molybdenum, with good corrosion resistance and strength.
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420 Stainless Steel Bar 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 Bar Type Steel Bar Outer Diameter Round Bar 4mm-500mm Hexagon Bar 18mm-57mm (11/16″ to 2-3/4″) Square Bar 18mm-47mm (11/16″ to 1-3/4″) Flat Steel 1/2 "to 10", Thickness: 2mm-150mm, Can provide customized Length 1-6 meters, Length can be customized Standard ASTM, AISI, JIS, GB, DIN, EN, etc. Surface Black, Bright Polished, Rough Turning, Mattness Surface Treatment, No. 4. BA, etc. Scope of Application Stainless steel bars are used in a variety of industries such as shipbuilding, Defense, Automotive, Textiles, Paper and pulp, Manufacturing, Cement, Heavy earthmoving equipment and construction, etc.
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
What is your working time?
In general, our online service time is Beijing time: 8:00-22:00, after 22:00, we will reply to your inquiry during the next working day.
How to pack the products?
The inner layer has a waterproof paper outer layer with iron packaging and is fixed with a fumigation wooden pallet. It can effectively protect products from corrosion during ocean transportation.
Can you send samples?
Of course, we can send samples to all parts of the world, our samples are free, but customers need to bear the courier costs.
What product information do I need to provide?
You need to provide the grade, width, thickness, coating and the number of tons you need to purchase.
What are the shipping ports?
Under normal circumstances, we ship from Shanghai, Tianjin, Qingdao, Ningbo ports, you can choose other ports according to your needs.
About product prices?
Prices vary from period to period due to cyclical changes in the price of raw materials.
What are the certifications for your products?
We have ISO 9001, SGS, EWC and other certifications.
How long does your delivery time take?
In general, our delivery time is within 30-45 days, and may be delayed if the demand is extremely large or special circumstances occur.
