polished bright finished 420 stainless steel bar with round shape
Product Description
- Item: polished bright finished 420 stainless steel bar with round shape
- Standard: ASTM A276, ASTM A484, ASTM A582
- Material: 301, 304, 304L, 309S, 321, 316, 316L, 317, 317L, 310S, 321, 329,201,630,904L,405,409,430,434,444,403,410,420,440A,440B,440C.
- Specifications:
- Round Bar, diameter 1~1500mm.
- Flat bar, thickness 0.1~100mm, width 3~1500mm.
- Square bar, 1x1mm~800x800mm
- Length: 2m, 3m, 5.8m, 6m,etc.
- Surface: Black, peeled, polishing, bright, sand blast, hair line, etc.
What is 420 stainless steel?
420 stainless steel, 420 stainless steel is 420 "blade grade" martensitic steel, similar to the earliest stainless steel of Brinell high chromium steel. 420 has certain abrasion resistance and corrosion resistance, higher hardness, and its price is a lower class of stainless steel balls, which is suitable for the working environment where stainless steel is generally required. 420 stainless steel is suitable for all kinds of precision machinery, bearings, electrical, equipment, instruments, meters, transportation tools, household appliances, etc. Mostly used to make parts resistant to atmospheric, water vapor, water and oxidizing acid corrosion.
420 Chemical Composition
| Material | C | Si | Mn | P | S | Cr |
| 420 | ≥0.15 | ≤1.00 | ≤1.00 | 0.040 | 0.030 | 12.0~14.0 |
Grade Specification Comparison
| Grade | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS |
| BS | En | No | Name |
| 420 | S42000 | 420S37 | 56C | 1.4021 | X20Cr13 | 2303 | SUS 420J1 |
400 Series-Ferritic and Martensitic Stainless Steel
409—The cheapest model (British and American), usually used as automobile exhaust pipe, is a ferritic stainless steel (chrome steel).
410—Martensite (high-strength chromium steel), has good wear resistance and poor corrosion resistance.
416—The addition of sulfur improves the processability of the material.
420— "Blade grade" martensitic steel, similar to the earliest stainless steel of Brinell high chromium steel. Also used in surgical knives, it can be made very bright.
430—Ferritic stainless steel, for decoration, such as for car accessories. Good moldability, but poor temperature resistance and corrosion resistance.
440—High-strength cutting tool steel, which contains slightly higher carbon, can obtain higher yield strength after appropriate heat treatment, and hardness can reach 58HRC, which is among the hardest stainless steels. The most common application example is a "shaving blade". There are three commonly used models: 440A, 440B, 440C, and 440F (easy to process).
Products' Photos
FAQ
Q: Do you accept sample order?
A: Yes sure, please contact us for details.
Q: Are you a manufacturer or trading company?
A: We are a specialized manufacturer.
Q: How about the delivery terms?
A: 1. Payment: T/T, Western Union, Paypal, 30% deposit in advance and balance before delivery.
2. Min. Order Quantity: 100KG, or as required.
3. Transportation: By express (DHL,TNT,FedEx),air,sea,and train.
Q: How does your company control the quality?
A: Quality first. In order to guarantee high quality for our products,
Modern always makes a serious inspection for all products and raw materials in strict procedure.
Q: How about your after-sales service?
A: As a professional steel exporter, we offer promote technology support for all problems and questions.
Besides, we accept goods return or replace for quality problem.
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