303 stainless steel is an austenitic free cutting stainless wear-resistant acid steel containing sulfur and selenium respectively.
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Product Description
Introduction
303 stainless steel is an austenitic free cutting stainless wear-resistant acid steel containing sulfur and selenium respectively. It is used in occasions requiring free cutting and high surface finish.
Mechanical properties of 303 stainless steel after annealing and stress relief, the tensile strength is 515mpa, the yield is 205mpa and the elongation is 40%. The standard hardness of stainless steel 303 is HRB 90-100, HRC 20-25, note: hrb100 = hrc22.9.
303 stainless steel improves cutting performance and high temperature adhesion resistance. Most suitable for automatic lathes, bolts and nuts.
Application fields: petroleum, electronics, chemical industry, medicine, textile, food, machinery, construction, nuclear power, aerospace, military industry and other industries.
Specification
| Grade | 201, 202, 301, 302, 303, 304, 409, 409L, 2205, 2507 |
| Standard | AISI, ASTM, DIN, GB, JIS, SUS |
| Thickness | Hot rolled: 3/4/5/6/8/10/12/14/16/18/20/25/30/-100mm or as your request |
| Cold rolled: 0.3/0.5/0.6/0.7/0.8/0.9/1.0/1.2/1.5/1.8/2.0/2.5/3.0mm or as your request | |
| Width | Hot rolled: 1500/1800/2000mm or as your request |
| Cold rolled: 1000/1220/1250/1500/1800/2000mm or as your request | |
| Treatment/Technique | Hot rolled, Cold rolled |
| Surface | NO.1, 2B, 8K, 2D, BA, NO.4, HL... |
| Applications | Decorative /industrial/building material |
| Trade Terms | EXW, FOB, CFR, CIF |
| Delivery time | Shipped in 7-15 days after payment |
| Package | Standard sea-worthy package or as required |
| Seaworthy Packing | 20ft GP: 5.8m(length) x 2.13m(width) x 2.18m(high) about 24-26CBM |
| 40ft GP: 11.8m(length) x 2.13m(width) x 2.18m(high) about 54CBM | |
| 40ft HG: 11.8m(length) x 2.13m(width) x 2.72m(high) about 68CBM |
| Chemical Properties of Frequently-used Stainless Steel Material Grade | ||||||||
| ASTM | C% | Mn% | P% | S% | Si% | Cr% | Ni% | Mo% |
| 201 | ≤0.15 | 5.5-7.5 | ≤0.06 | ≤0.03 | ≤1.00 | 16.0-18.0 | 3.5-5.5 | - |
| 202 | ≤0.15 | 7.5-10.0 | ≤0.06 | ≤0.03 | ≤1.00 | 17.0-19.0 | 4.0-6.0 | - |
| 301 | ≤0.15 | ≤2.00 | ≤0.045 | ≤0.03 | ≤1.00 | 16.0-18.0 | 6.0-8.0 | - |
| 303 | ≤0.15 | ≤2.00 | ≤0.2 | ≤0.15 | ≤1.00 | 17.0-19.0 | 8.0-10.0 | ≤0.6 |
| Surface Finish | Definition | Application |
| 2B | Those finished, after cold rolling, by heat treatment, pickling or other equivalent treatment and lastly by cold rolling to given appropriate luster. | Medical equipment, Food industry, Construction material, Kitchen utensils. |
| BA | Those processed with bright heat treatment after cold rolling. | Kitchen utensils, Electric equipment, Building construction. |
| NO.3 | Those finished by polishing with No.100 to No.120 abrasives specified in JIS R6001. | Kitchen utensils, Building construction. |
| NO.4 | Those finished by polishing with No.150 to No.180 abrasives specified in JIS R6001. | Kitchen utensils, Building construction, Medical equipment. |
| HL | Those finished polishing so as to give continuous polishing streaks by using abrasive of suitable grain size. | Building Construction. |
| NO.1 | The surface finished by heat treatment and pickling or processes corresponding there to after hot rolling. | Chemical tank, pipe. |
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