Stainless steel flat steel can be according to the structure of the different needs of different kinds of stress components, and also can make members between the joints. They are widely used in various building structures and engineering structures, such as beams, Bridges, transmission towers, lifting transportation machinery, ships, industrial furnaces, reaction towers, container frames warehouse shelves, etc.
Stainless steel flat steel is used for Bridges in construction engineering, room frames, fences, the transmission of ships, automobiles, etc. In the production of stainless steel flat steel billet, raw material for low carbon steel billet, finished products, cold rolled or hot rolled stainless steel flat steel for hot rolled forming condition of delivery. Transactions, contracts, and other documents shall be of stainless steel flat steel edge, thick fill-in complete, the size, and other main craft items, such as annealing, quenching, etc.
Types and Specifications of Stainless Steel Flat Steel
Mainly divided into two categories, equal and unequal, can be divided into the square steel specifications with the equilateral side length and the size of the edge thickness. At present domestic specifications for 20 m * 3 mm – 150 mm.
Required by the import and export to use the general specification is given priority to, its steel grade for carbon steel and steel grade. In addition to gauge number, no specific composition, and performance of the series.
Stainless steel flat steel delivery length scale, two times ruler, domestic scale range according to different size specifications have 3-9 m, 4-12 m Japanese length range for 6 to 15 m.
Import and Export Situation
To a certain extent, bulk imports and exports from China are mainly imported from Japan and Western Europe. Exports mainly to the region for Hong Kong and Macao, Southeast Asia, Latin America, and the Arab countries, etc. Export production enterprises mainly to Jiangsu, Liaoning, Hebei, Beijing, Shanghai, Tianjin, and other provinces and cities steel mill (steel mill).
The Appearance Quality Requirements
There are provisions in stainless steel flat steel surface quality in the standard, general requirements shall not use harmful defects, such as delamination, scarring, cracks, etc.
Geometric deviation allowed range is also stipulated in the standard, generally including bending, thick, apex Angle, and width, while theoretical weight, etc, and have significant reverse.
Product Information of Stainless Steel Flat Steel
Chemical Composition Inspection
(1) Component index: the chemical composition of stainless steel flat steel belongs to the general structure of rolled steel series, the main test indexes for C, Mn, P, S four. According to the content of different grades, each has differences, the approximate scope for C<0.08%, Mn: 0.08 2.0, P < 0.035%, S < 0.03%
(2) inspection method: to test the chemical composition, the standard test methods are GB223, JISG1211-1215, BS1837, BS manual 19, ГОСТ 22536, etc.
The Standard Specifications
GB/T2101-89 (steel acceptance, packing, marking, and general provisions of the quality certificate); / GB9788 GB9787-88-88 (hot rolled size, shape, weight, and allowable deviation); JISG3192-94 (hot rolled steel shape, size, weight, and allow the poor); DIN17100-80 (normal structural steel quality standards); ГОСТ 535-88 (plain carbon steel technical conditions).
According to the prescribed standards, which should have been delivered bales, the strapping passes, with bundle length should comply with the rules. Generally, without package delivery, transporting and storing all need to be attention to moistureproof.
Mechanical Properties Test
(1) test methods:
(1) tensile test method. Commonly used with GB/T228-87 standard test methods, JISZ2201, JISZ2241, ASTMA370, ГОСТ 1497, BS18, DIN50145, etc.;
(2) the bending test method. Standard test methods with GB/T232-88, JISZ2204, JISZ2248, ASTME290, ГОСТ 14019, DIN50111, etc.
(2) performance index, evaluation of the performance of the inspection items are mainly tensile test and bending test. Indexes include the yield point, tensile strength, elongation, bending of qualified, etc.
Stainless steel Weight Calculation Method
The weight per meter (kg) = 0.00793 * side edge width (mm) thickness (mm)