Stainless steels for building structures (JIS G 4321)
Stainless steels for building structures use in the Building Standards Act
Introduction to stainless steels for building structures
Mechanical properties of stainless steels for building structures
With the year 2000 revision to the Building Standards Act, stainless steel became usable as a construction material alongside general rolled steel for building construction (SN steel). The chemical composition is the same as JIS standards for round bars, thick plates, thin plates and form steel, but the mechanical properties differ as given in the table below. With the same standard strength as SN400 and SN490, architectural design is simple.
Stainless steel that can be used as a building structural material
| Type of steel | 0.1% yield strength (N/mm2) |
Tensile strength (N/mm2) |
Yield rate (%) |
Elongation (%) | |
|---|---|---|---|---|---|
| Unit 4, 5, 12 and 13 sample |
Unit 14 sample | ||||
| SUS304A SUS316A |
235 or more | 520 or more | 60 or less | 40 or more | 35 or more |
| SUS304N2A | 325 or more | 690 or more | 60 or less | 35 or more | 30 or more |
Standards related to stainless steels for building structures
In addition to JIS G 4321 (Stainless steel for building structure), other related standards for joining (bolts, welding) welded formed steel, and so on are given in the table.
Standards related to stainless steels for building structures
| Standard name | Name |
|---|---|
| JIS G 4321 | Stainless steels for building structure (steel plate, rolled H-bar steel, round steel pipes, square steel pipe, steel angle bars, steel channel bars) |
| JIS B 1186 | Sets of high strength hexagon bolt, hexagon nut and plain washers for friction grip joints |
| JIS B 1054 | Mechanical properties of corrosion-resistant stainless steel fasteners |
| JIS Z 3221 | Stainless steel covered electrodes |
| JIS Z 3323 | Stainless steel flux cored wires and rods for arc welding |
| JIS Z 3324 | Classification and testing methods for deposited metal of stainless steel by submerged arc welding |
| SSBS 101 | Welded stainless steels for building structure |
| SSBS 201 | Welded stainless steel materials for building structure |
| SSBS 301 | Sets of high strength hexagon bolt, hexagon nut and plain washers for friction structures |
| SSBS 351 | Sets of hexagon bolt and hexagon nut for structures |
| SSBS 401 | Ultrasound flaw inspection standard for stainless steel welded structures |
| SSBS 501 | Coating containing inorganic stainless steel powder for friction joining |
AICHI STEEL's stainless steels for building structures
We manufacture angle bars, channel bars, flat bars and round bars meeting JIS G 4321. We also manufacture welded I-bar formed steel meeting SSBS 101.
For details, ask our sales personnel.
Applications
| Application | Outdoor steps, roof louvers |
|---|---|
| Field | Building construction |
| Shape | Flat bar |
| Type of steel | SUS304A |
| Reason | Corrosion resistance |
| Application | AICHI STEEL Foundry Office Girders, curtain wall mullions |
|---|---|
| Field | Building construction |
| Shape | H-beam |
| Type of steel | SUS304A |
| Reason | Corrosion resistance, design characteristics |
| Application | Sewage treatment pumping station seismic reinforcement |
|---|---|
| Field | Building construction |
| Shape | H-beam |
| Type of steel | SUS304A |
| Reason | Corrosion resistance, life cycle cost |
| Application | Truss girder |
|---|---|
| Field | Building construction |
| Shape | Round bars |
| Type of steel | SUS304A |
| Reason | Corrosion resistance |
Product inquiries
Phone
AICHI STEEL Corporation
Sales and Planning Division
TEL +81 (52) 603-9362
Internet
Please complete any inquiries from the below.
- Please understand that we may not be able to accept specific orders depending on the circumstances even for information given on this website. Feel free to contact us for the latest information.
Note that information given on this website is subject to change without notice.