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Alloys 321 is austenitic stainless steel that contains stabilizing elements. It is easily welded. Annealing is often not required after welding unless stress relief is desired. It has excellent resistance to oxidation and corrosion.
ASTM321
Shanqi
Product Description
321H stainless steel is a widely used stainless steel, where parts are heated within carbide-precipitation temperature range (800°F-1500°F) and exposed to the corrosive atmosphere. 321 stainless steel is similar to 304 stainless steel, but with higher nickel content and stabilized with titanium. Titanium preferentially reacts with carbon in the steel and prevents precipitation of chromium carbides at the grain boundaries, thus preserving corrosion-resistant properties by preventing depletion of chromium near the grain boundaries during exposure within the critical temperature range. This grade responds well to hardening by cold working. It has good welding characteristics, and post-weld annealing is not normally required to restore its excellent performance in a wide range of corrosive conditions.
| Surface | Feature | Outline of manufacturing method | Use |
| NO.1 | Silver white Dull | Hot rolled to specified thickness | Applications that do not require a glossy finish |
| NO.2D | Silver white | Heat treatment and pickling after cold rolling | General material, deep drawing material |
| NO.2B | Gloss is stronger than NO.2D | After NO.2D treatment, the final light cold rolling is carried out by polishing rolls | General timber |
| BA | Bright as a mirror | No standard, but usually a bright annealed finish with a highly reflective surface. | Building materials, kitchen utensils |
| NO.3 | Coarse grinding | Grinding with 100~200# (unit) abrasive belt | Building materials, kitchen utensils |
| NO.4 | Intermediate grinding | Polished surface obtained by grinding with 150~180# abrasive belt | Building materials, kitchen utensils |
| NO.240 | Fine grinding | Grinding with 240# abrasive belt | Kitchenware |
| NO.320 | Very fine grinding | Grinding with 320# abrasive belt | Kitchenware |
| NO.400 | Gloss close to BA | Grinding with 400# polishing wheel | General materials, construction materials, kitchen utensils |
| HL | Hairline Grinding | Appropriate particle material for hairline grinding (150~240#) has a lot of abrasive grains | Buildings, building materials |
| NO.7 | Close to mirror finish | Grinding with 600# rotary polishing wheel | Art, decoration |
| NO.8 | Mirror grinding | Mirrors are ground with buffing wheels | Mirror, decorative |
FAQ：
Q: What kind of work does your company do?
A: We are a business steel industry and trade. We mainly produces stainless steel plate/pipe/coil/round bars etc.
Q: What are the advantages of your company?
A: (1): Prime quality and Competitive price.
(2): Excellent experiences with after-sale service.
(3): Every process will be checked by responsible QC which insures every product's quality.
(4): Professional packing teams which keep every packing safely.
(5): Samples can be provided as your requirements.
Q: What is your terms of payment ?
A: Can be negotiated by both parties. If you have another question, pls feel free to contact us as below
Q: What about your price?
A: Our price is very competitive.
Pls feel free to contact us if you are interested in our products.
Q: How long is your delivery time?
A: Stock steel/Steel for simple cutting/Small amount of general standard steel: about 5-20 days for delivery; Custom steel/bulk steel: about 15-30 days for delivery. Contact us for specific delivery times.
