1. Pregled
AISI 420 stainless steel, also known as 3Cr13 or SUS420J2, is a martensitic stainless steel containing about 13% chromium.
It offers an excellent combination of hardness, wear resistance, and corrosion resistance after appropriate heat treatment, making it a preferred material for cutting tools, lopatice, and mechanical wear parts.
Cgood Steel proizvodi AISI 420 stainless steel strips in cold rolled annealed i očvrsnuo & tempered uslovima, with polished or bright finishes to meet the highest precision standards.
2. Hemijski sastav i ekvivalentni razredi
| Standard | Ekvivalentne ocjene | C (%) | Mn (%) | I (%) | Cr (%) | Ni (%) | P max | S max |
|---|---|---|---|---|---|---|---|---|
| OD | 3Cr13 | 0.25-?.35 | niobij?.50 | niobij?.00 | 12.0-?4.0 | -?/td> | niobij?.035 | niobij?.035 |
| AISI | 420 | -?/td> | -?/td> | -?/td> | -?/td> | -?/td> | -?/td> | -?/td> |
| JIS | SUS420J2 | -?/td> | -?/td> | -?/td> | -?/td> | -?/td> | -?/td> | -?/td> |
The relatively high chromium content provides good corrosion resistance, while the moderate carbon level ensures the ability to achieve high hardness (up to 50鈥?2 HRC) after quenching and tempering.
3. Manufacturing and Processing
Cgood Steel employs a full range of processing steps to ensure the highest quality surface finish and dimensional accuracy:
- Raw Material Selection:
Only ISO-certified hot rolled coils are used as the starting material. - Kiselo kiseljenje:
Removes oxides and surface impurities for uniform rolling. - Hladno valjanje:
Reduces thickness with precise tolerance control. - Žarenje:
Conducted in a controlled atmosphere to prevent decarburization and achieve a bright surface. - Hardening and Tempering:
- Hardening temperature: 980-?050掳C
- Tempering temperature: 150-?70掳C
- Results in high hardness with retained corrosion resistance.
- Surface Finishing and Edge Treatment:
Available finishes include bright, uglačan, or mirror, and edges can be prorez, rounded, or square.
4. Mehanička svojstva
| Stanje | Tvrdoća | Zatezna čvrstoća | Surface Finish | Edge Type |
|---|---|---|---|---|
| Annealed | niobij?00 HV | 600-?00 N/mm | Bright / Mirror | Slit / Mill |
| Hardened & Tempered | 40-?2 HRC | 1300-?600 N/mm | Polished / Bright | Zaokruženo / Square |
Thickness Range: 0.1-?.0 mm
Width Range: do 500 mm
5. Key Characteristics
- Corrosion Resistance:
Excellent in dry air, freshwater, mild acids, and alkalis. - Hardness and Wear Resistance:
High hardness achievable after quenching; ideal for cutting edges and mechanical wear parts. - Polishability:
Smooth, bright, and mirror surface finish possible for decorative or precision applications. - Machinability:
Good machinability in annealed condition; easy to harden for final performance. - Dimensional Accuracy:
Maintained through precision cold rolling and levelling.
6. Typical Applications
AISI 420 stainless steel strip is widely used across various industries that require both mechanical strength i surface durability:
- Cutting Tools & Blades:
Knife blades, trowel blades, strugači, noževi za kit, and scissors. - Industrial Components:
Wear-resistant spacers, shims, washers, and clips. - Automotive Applications:
Seatbelt parts, clutch discs, and decorative trims. - Shoe Hardware & Accessories:
Toe caps, shoe shanks, and insole supports.
7. Quality Control and Standards
Cgood Steel follows strict quality assurance procedures throughout production:
- Chemical Composition Testing -?confirmed via spectrometer.
- Hardness Testing -?Vickers, Rockwell, and Brinell methods.
- Flatness and Straightness -?controlled within tolerance classes R1鈥揜4.
- Surface Inspection -?mirror and polished surfaces free from oxidation or pitting.
Tolerancija debljine: 卤0.015鈥?.070 mm
Tolerancija širine: 卤0.20鈥?.80 mm
8. Pakovanje i dostava
Svaki kalem je:
- Lightly oiled to prevent corrosion,
- Wrapped in plastic film and anti-rust paper,
- Packed in wooden pallets or steel frames for export,
ensuring safe arrival in perfect condition.
9. O Cgood Steel-u
Guangzhou Jiaxiao Material Technology Co., doo.
specializes in high carbon steel, alloy steel, i trake od nerđajućeg čelika for global industrial use.
With advanced rolling, žarenje, and polishing facilities covering 25,000 m虏 and over 100 skilled staff, Cgood Steel provides reliable, high-quality steel materials for manufacturers in the tooling, automotive, and hardware sectors.
Annual production capacity exceeds 15,000 tons.
