Hot Rolled Steel Coil C10/C45e4/1008/1020 Grades - High Strength Industrial Steel for Construction & Manufacturing
Zhengde hot-rolled steel coil manufacturers utilize slabs (primarily continuous casting slabs) as raw materials. After heating, these are processed through rough rolling and finishing rolling units to produce high-quality strip steel. The hot steel strip exiting the final finishing rolling mill is cooled to precise temperatures via laminar flow and coiled into steel strip coils. These cooled coils undergo various finishing operations including leveling, straightening, cutting, inspection, weighing, packaging, and marking to meet diverse customer requirements.
| Standard | Grade | International Standard | Application |
|---|---|---|---|
| Q/BQB 302 | SPHC, SPHD, SPHE | JIS G3131 | Suitable for manufacturing cold-formed parts |
| DIN 1614 (EN10111) | StW22 (DD11), StW23 (DD12), StW24 (DD13) | StW22, StW23, StW24 | Suitable for manufacturing cold-formed parts |
| Standard | Grade | International Standard | Application |
|---|---|---|---|
| Q/BQB 303 | SS330, SS400, SS490, SS540 | JIS G3101 | Used for general structural parts in buildings, bridges, ships, and vehicles |
| DIN 17100 (EN10025) | St33 (S185), St37-2 (S235JR), St37-3 (S235JO), St44-2 (S275JR), St50-2 (E295), St52-3 (S355JO) | St33, St37-2, St37-3, St44-2, St50-2, St52-3 | Used for general structural parts in buildings, bridges, ships, and vehicles |
| Standard | Grade | International Standard | Application |
|---|---|---|---|
| Q/BQB 303 | SM400A, SM400B, SM400C, SM490A, SM490B, SM490C, SM490YA, SM490YB, SM520B, SM520C | JIS G3106 | Used for structural parts requiring excellent welding performance in buildings, bridges, ships, vehicles, oil tanks, and engineering machinery |
Manufactured from high-quality slabs through precision rolling processes to ensure superior mechanical properties and structural integrity.
Comprehensive spot inventory including carbon structural steel, low alloy steel, alloy steel, wear-resistant steel, automotive structural steel, and specialized pipeline steel.
Superior surface quality with oxide scale removal, enhanced dimensional accuracy, and improved surface finish for optimal welding, painting, and appearance.
Custom cutting services including precision cutting to required shapes such as circles, rectangles, flanges, bearing housings, and rolling mill components.
- Quality First: Strict production and inspection according to international standards
- Price Advantage: Competitive pricing based on real market conditions
- Transaction Security: Guaranteed fund protection for customers
- After-sales Guarantee: Comprehensive support for customer requirements
- Long-term Cooperation: Sustainable partnerships through quality and service excellence
Shandong Zhengde Metal Manufacturing Co., Ltd. is an integrated enterprise specializing in hot-rolled steel coils, cold-rolled steel coils, galvanized steel coils, color-coated steel coils, section steel, steel pipes, and various metal products. With five production bases across Binzhou, Liaocheng, Wuxi, Tianjin, Jinan, and Tai'an, the company operates over 100 production lines with 4 nationally recognized laboratories and multiple technical centers. Products are exported to more than 50 countries worldwide.
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