In terms of chemical composition, low-carbon steel grades Q195, Q215, Q235, Q255 and Q275 are large, and the higher the carbon content and manganese content, the more stable the plasticity. In terms of mechanical properties, the above grades indicate the yield point of steel with a thickness of ≤16mm. Its tensile strengths are: 315-430, 335-450, 375-500, 410-550, 490-630 (obN/mm2); qi’s elongation rates are: 33, 31, 26, 24, 20 ( 0.5%).
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| Q195 Equivalent (For Reference) | |||||||||||||
| China | USA | Germany | Japanese | UK | France | ISO | |||||||
| Standard | Grade | Standard | Grade | Standard | Grade | Standard | Grade | Standard | Grade | Standard | Grade | Grade | |
| GB/T 700 | Q195 | ASTM A283/A283m – 03 | A283 Gr.B A283 Gr.C |
DIN EN 10225; DIN 17100 |
S185, (1.0035); St 33 |
JIS G3101; JIS G3131 |
SS330; SPHC; SPHD |
BS 970-1; BS EN 10025 |
040A10; S185, (1.0035) |
NF EN 10025; NF A35-501 |
S185, (1.0035); A33 |
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CARBON STEEL H PROFILE Q195 Q235 is commonly rolled into wire rod or round steel, square steel, flat steel, angle steel, I beam, channel steel, other sections and steel plates. These products are widely used in construction and engineering welded structures, to make steel bars or build factory buildings, high voltage transmission towers, bridges, vehicles, boilers, containers, etc., and also used as a mechanical part with less demanding performance such as less stressed rods, connecting rods, screws, nuts, ferrules, brackets, and stands, etc.
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