Shandong Modern International Trade Co., Ltd.
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440A 440B 440C stainless steel bar stock 6mm stainless steel rod
Product Description
The carbon content and hardness of 440A-440B-440C are gradually increased from A-B-C (A-0.75%, B-0.9%, C-1.2%). 440C is an excellent high-end stainless steel, and its hardness usually reaches 56-58RC. All three steels have good rust resistance, 440A is the best, and 440C is the lowest. 440C is very common.
| Chemical Composition | |||||||
| Material | C | Si | Mn | P | S | Cr | Mo |
| 440A | 0.60~0.75 | ≤1.00 | ≤1.00 | ≤0.040 | ≤0.030 | 16.0~18.0 | ≤0.75 |
| 440B | 0.75~0.95 | ≤1.00 | ≤1.00 | ≤0.040 | ≤0.030 | 16.0~18.0 | ≤0.75 |
| 440C | 0.95~1.20 | ≤1.00 | ≤1.00 | ≤0.040 | ≤0.030 | 16.0~18.0 | ≤0.75 |
| Grade | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS | ||
| BS | En | No | Name | ||||
| 440A | S44002 | - | - | SUS 440A | |||
| 440B | S44003 | 1.4112 | X90CrMoV18 | SUS 440B | |||
| 440C | S44004 | - | - | 1.4125 | X105CrMo17 | - | SUS 440C |
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).
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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.