It is a right-angled steel with two sides perpendicular to each other. It has the attributes and characteristics of stainless steel. According to the shape, it can be divided into equal sides and unequal sides. It can form different force-bearing structures or serve as connecting structures. It is widely used in various modern construction projects and is an indispensable important material for the modern construction industry.
| Grade and Main chemical compstion | | | | | | | | | | |||||||||
| C S Mn P≤ S≤ Cr Mo Ni Other | | | | | | | | | | |||||||||
| 201 | ≤0.15 | ≤1.00 | 5.5-7.5 | 0.06 | 0.03 | 16-18 | - | 3.5-5.5 | N≤0.25 | |||||||||
| 202 | ≤0.15 | ≤1.00 | 7.5-10.0 | 0.06 | 0.03 | 17-19 | - | 4.0-6.0 | N≤0.25 | |||||||||
| 301 | ≤0.15 | ≤1.00 | ≤2.00 | 0.045 | 0.03 | 16-18 | - | 6.0-8.0 | - | |||||||||
| 302 | ≤0.15 | ≤1.00 | ≤2.00 | 0.045 | 0.03 | 17-19 | - | 8-10.0 | - | |||||||||
| 303 | ≤0.15 | ≤1.00 | ≤2.00 | 0.2 | ≥0.015 | 17-19 | ≤0.6 | 8-10.0 | - | |||||||||
| 304 | ≤0.08 | ≤1.00 | ≤2.00 | 0.045 | 0.03 | 18-20 | - | 8-10.5 | - | |||||||||
| 304L | ≤0.03 | ≤1.00 | ≤2.00 | 0.045 | 0.03 | 18-20 | - | 9-13 | - | |||||||||
| 305 | ≤0.12 | ≤1.00 | ≤2.00 | 0.045 | 0.03 | 17-19 | - | 10.5-13 | - | |||||||||
| 309S | ≤0.08 | ≤1.00 | ≤2.00 | 0.045 | 0.03 | 22-24 | - | 12-15 | - | |||||||||
| 310S | ≤0.08 | ≤1.50 | ≤2.00 | 0.045 | 0.03 | 24-26 | - | 19-22 | - | |||||||||
| 316 | ≤0.08 | ≤1.00 | ≤2.00 | 0.045 | 0.03 | 16-18 | 2-3 | 10-14 | - | |||||||||
| 316L | ≤0.03 | ≤1.00 | ≤2.00 | 0.045 | 0.03 | 16-18 | 2-3 | 12-15 | - | |||||||||
| 317 | ≤0.08 | ≤1.00 | ≤2.00 | 0.045 | 0.03 | 18-20 | 3-4 | 11-15 | - | |||||||||
| 317L | ≤0.03 | ≤1.00 | ≤2.00 | 0.045 | 0.03 | 18-20 | 3-4 | 11-15 | - | |||||||||
| 321 | ≤0.08 | ≤1.00 | ≤2.00 | 0.045 | 0.03 | 17-19 | - | 9-13 | - | |||||||||
| 405 | ≤0.08 | ≤1.00 | ≤1 | 0.04 | 0.03 | 11.5-14.5 | - | ≤0.6 | AL0.1-0.3 | |||||||||
| 420F | 0.26-0.4 | ≤1.00 | ≤1.25 | 0.06 | ≥0.015 | 12-14 | ≤0.6 | ≤0.6 | - | |||||||||
| 430 | ≤0.12 | ≤0.75 | ≤1.00 | 0.04 | 0.03 | 16-18 | - | ≤0.6 | - | |||||||||