420stainless steel plate,420 stainless medium plate，420 stainless Industrial Steel plate ，420 mirror stainless steel plate，420 2B stainless plate，420 Matte stainless steel plate，420 withdrawing stainless steel plate 。
420 stainless steel is equivalent to 3Cr13 of Martensitic Steel in china.
Type 420 provides full corrosion resistance only in the hardened or hardened and stress relieved conditions. In these conditions, its corrosion resistance is similar to Type 410.
Applications requiring good corrosion resistance and high hardness are ideal for this alloy. Typical uses include cutlery, surgical and dental instruments, scissors, tapes and straight edges. The alloy is not normally used at temperatures exceeding 800°F (427°C) due to rapid softening and loss of corrosion resistance.
| 420 | Chemical Composition / % | Si | Mn | P | S | Ni | Cr | M0 | C | |||||||||
| ≤ 1.00 | ≤ 1.00 | ≤ O.035 | ≤ O.030 | ≤ 0.60 | 12.00～14.00 | ≤ 0.60 | 0.16 ～O.25 | |||||||||||
| Heat treatment (annealing)/℃ | Tensile Strength | hardness test | Bending test(180°) | |||||||||||||||
| ó0 .2 MPa | Ób MPa | δ5 (％) | HBS | HRB | HV | d-bent core diameter | ||||||||||||
| a-steel thickness | ||||||||||||||||||
| ≥ | ≤ | |||||||||||||||||
| About 750 (fast-cooling) or 800～900 (slow cooling) | 225 | 520 | 18 | 223 | 97 | 234 | d=2a | |||||||||||
| 420 stainless steel | Impact energy Akv (J) | Elongation δ5 (％) | Tensile Strengthσb (MPa) | Yield Strength σ0.2 (MPa) | Area reduction ψ (％) | Hardness |
| Quenching and tempering | ≥24 | ≥12 | ≥735 | ≥540 | ≥40 | ≤235HB |
| Annealing | ≥217HB |
420 Martensitic steel is similar to Brinell high chromium,which was the earliest stainless steel. 420 stainless steel is higher hardness,lower price,with a certain wear resistance and corrosion resistance.It is suitable for the work environment that needs general requirements for stainless steel.It is commonly used for manufacture of steam, water and oxygen, chemical resistance to atmospheric corrosion and acid components.For higher hardness than 2Cr13,it is also used for knife tools,nozzle,valve seat,valve,etc.
Type 420 resists corrosion by the atmosphere, fresh water, mine water, steam,carbonic acid, crude oil, gasoline, perspiration, alcohol, ammonia, mercury, sterilizing solutions, soaps and other similar corrosive media.
Source:
Tags: S30100, X1CrNi25-21, X12CrMnNiN18-9-5
