| SPECIFICATIONS | ALLOWABLE DEVIATION |
| 20x3~12mm(4/5" x 1/8"~12/25") | WIDTH≤50MM THICKNESS≤20MM THICKNESS DEVITION ± 0.4MM |
| 25x3~15mm(1" x 1/8"~3/5") |
| 30x3~16mm(1-1/5" x 1/8"~16/25") |
| 35x3~16mm(1-2/5" x 1/8"~16/25") |
| 40x3~16mm(1-3/5" x 1/8"~16/25") |
| 45x4~16mm(1-4/5" x 4/25"~16/25") |
| 50x4~16mm(2" x 4/25"~16/25") | 1.WIDTH≤50MM THICKNESS DEVITION ± 0.8MM 2.50<WIDTH≤75MM WIDTH DEVIATION ± 1.2MM 3.75<WIDTH≤150MM WIDTH DEVIATION ± 1.5MM |
| 60x4~16mm(2-2/5" x 4/25"~16/25") |
| 65x4~16mm(2-3/5" x 4/25"~16/25") |
| 70x5~16mm(2-4/5" x 4/25"~16/25") |
| 75x5~16mm(3" x 1/5"~16/25") |
| 80x5~16mm(3-1/5" x 1/5"~16/25") |
| 90x5~16mm(3-1/2" x 1/5"~16/25") |
| 100x5~18mm(4" x 1/5"~7/10") |
Chemical composition
(1) Composition index: the chemical composition of stainless steel
flat steel belongs to the rolled steel series for general
structure, and the main inspection index is C, Mn, P, S. According
to the different brand, the content is different, the approximate
range is C< 0.08%, Mn: 2.0, P< 0.035%, S<
0.03%.
(2) Inspection methods: The commonly used standard inspection
methods for the above chemical compositions are GB223,
JISG1211-1215, BS1837, BS Manual 19, г с т 22536, etc.
The standard specifications
GB/ T2101-89 (General requirements for acceptance, Packing, Marking
and Quality Certificate of section steel); Gb9787-88 / GB9788-88
(hot rolling size, shape, weight and allowable deviation);
Jisg3192-94 (Shape, Size, weight and Tolerances of hot-rolled
sections); DIN17100 -- 80 (quality standard for ordinary structural
steel); Technical specifications of general carbon type steel EK35
-- 88.
According to the above standards, the goods should be delivered in
bundles, and the bundling times and the length of the same bundle
should meet the requirements. Generally delivered without packing,
transportation and storage must pay attention to moisture.
Mechanical properties of
(1) Inspection method:
Tensile test method. The commonly used standard examination methods
are GB/T228-87, JISZ2201, JISZ2241, ASTMA370, г с т 1497, BS18,
DIN50145 and so on;
② Bending test method. The commonly used standard examination
methods are GB/T232-88, JISZ2204, JISZ2248, ASTME290, г с т 14019,
DIN50111 and so on.
(2) Performance indicators: The test items to evaluate performance
are mainly tensile test and bending test. The index includes yield
point, tensile strength, elongation and bending qualification.
weight
Weight per meter (kg) =0.00793 x Edge width (mm) x edge thickness
(mm)
