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Introduction to Cold-Rolled Products of Baowu Steel
Baowu Steel “cold rolling” product line mainly produces high value-added products such as automotive plates, household appliance plates, tin-plated plates, color-coated plates, and electrical steel.
| 1.Main products of cold rolling | |
| Cold-rolled carbon steel Cold-rolled low-carbon steel Sheet steel for stamping Carbon structural steel High-strength steel with added phosphorus | Baking-hardened high-strength steel Two-phase high-strength steel Low-alloy high-strength steel Battery case steel Precision welded pipe steel |
| 2.Colored coated steel sheet | |
| The product has excellent molding performance and durability. And its rich and diverse colors are widely used in industries such as construction, home appliances, and furniture. | |
| 3.Hot-dip galvanized products | |
| The product is widely used in industries such as automobiles, home appliances, construction, and mechanical manufacturing. | |
| 4.Electrical steel products | |
| The product is widely used in power generation equipment, locomotives, industrial motors and household appliances. | |
| 5.Electro-galvanized products | |
| The product is widely used in the electronics industry, as well as in internal components of household appliances, micro-motors and motor housing parts. | |
| 6.Electroplated tin products | |
| The product is widely used in the high-end metal packaging industries such as food and beverages. | |
Baosteel hot-dip galvanized products
The thickness of hot-dip galvanized products ranges from 0.3 to 3.0mm, and the width is from 800 to 1800mm. The types of coatings include pure zinc coating and alloyed coating, and they can be supplied in equal thickness and differential thickness forms. The surface structures of regular products are smooth zinc flower, small zinc flower, zero zinc flower, and zinc-iron alloy. The surface treatment methods include oil coating, chromic acid passivation, chromic acid passivation plus oil coating, environmental-friendly passivation, environmental-friendly passivation plus oil coating, and environmental-friendly anti-fingerprint.
Baosteel’s hot-dip galvanized products are widely used in industries such as automobiles, home appliances, construction, and mechanical manufacturing.
| Characteristics of Baosteel’s Current Hot-Dip Galvanized Products | |
| Item | Features and Specifications |
| Coating Type | 1. Pure Zinc |
| 2. Zinc-Iron Alloy | |
| Surface Structure | 1. Zero Spangle (Zinc-Free Spangle): Lead-free coating, uniform and matte surface. |
| 2. Minimized Spangle: Surface exhibits fine zinc crystallization patterns. | |
| Coating Form | Pure Zinc Series: |
| • Equal Coating: 40/40 ~ 225/225 g/m² (Same zinc coating weight on both sides) | |
| • Differential Coating: 30 ~ 150 g/m² (Different zinc coating weight on each side, specified separately) | |
| Zinc-Iron Alloy Series: | |
| • Equal Coating: 30/30 ~ 90/90 g/m² | |
| Size Range | Cold-Rolled Substrate: |
| • Thickness: 0.3 – 3.0 mm | |
| • Width: 800 – 1830 mm | |
| Hot-Rolled Substrate: | |
| • Thickness: 1.8 – 2.8 mm | |
| • Width: 900 – 1500 mm | |
| Steel Grade | Drawing Steel: |
| • Commercial Quality (CQ) | |
| • Drawing Quality (DQ) | |
| • Deep Drawing Quality (DDQ) | |
| • Extra Deep Drawing Quality (EDDQ) | |
| • Super Extra Deep Drawing Quality (SEDDQ) | |
| Structural Steel: | |
| • Yield Strength Range: 220 – 550 MPa | |
| High Strength Steel for Cold Forming: | |
| • Yield Strength Range: 180 – 420 MPa | |
Henan Baowu Group Galvanized Products Introduction
The coating types include pure zinc coating and alloyed coating, and they can be supplied in equal thickness and differential thickness forms; the surface structure of the conventional products: smooth zinc granules, small zinc granules, zero zinc granules and zinc-iron alloy: surface treatment methods: oil coating, chromic acid passivation, chromic acid passivation with oil coating, environmentally friendly passivation, environmentally friendly passivation with oil coating, environmentally friendly fingerprint-resistant. The thickness of the hot-dip galvanized products ranges from 0.3 to 3.0 mm, and the width is from 800 to 1800 mm.
Baowu Steel’s galvanized products are widely used in industries such as automobiles, home appliances, construction, and mechanical manufacturing.
| Main Application | |
| Cars | Body panels, radio, fan, air filter, filter, fuel tank |
| Home appliances | Refrigerator, washing machine, dryer, air conditioner, video recorder, laser disc player, color TV, tape recorder, microwave oven, audio equipment, flat-panel TV, LCD TV, plasma TV, set-top box |
| Office machines | Copier, computer case, printer, monitor, teletype machine “ |
| Construction | Doors, walls, partitions, keels” “ |
| Production machinery | Agricultural machinery, industrial robots |
| Others | Power distribution equipment, oil storage tanks, motor covers, steel furniture bases |
| Electro-galvanized product brand and substrate | |||
| Part Number | Primary Use | Substrate Part Number | Corresponding Substrate Standard |
| SECC、SECD、SECE | For stamping purposes | SPCC、SPCD、SPCE | Q/BQB 402-2003 |
| SECIF | DC05(BSC2) | Q/BQB 403-2003 | |
| BLCE+Z,BLCE+ZN | BLC | Q/BQB408-2003 | |
| BLDE+Z,BLDE+ZN | BLD | ||
| BUSDE+Z,BUSDE+ZN | BUSD | ||
| BUFDE+Z,BUFDE+ZN | BUFD | ||
| BSUFDE+Z,BSUFDE+ZN | BSUFD | ||
| B170P1E+Z,B170P1E+ZN | For cold forming purposes | B170P1 | Q/BQB 411-2003 |
| B210P1E+Z,B210P1E+ZN | B210P1 | ||
| B250P1E+Z,B250P1E+ZN | B250P1 | ||
| B180P2E+Z,B180P2E+ZN | B180P2 (BP340) | ||
| B220P2E+Z,B220P2E+ZN | B220P2 (BP380) | ||
| B140H1E+Z,B140H1E+ZN | B140H1 | Q/BQB 416-2003 | |
| B180H1E+Z,B180H1E+ZN | B180H1 | ||
| B180H2E+Z,B180H2E+ZN | B180H2 (BH340) | ||
| B340/590DPE+Z,B340/590DPE+ZN | B340/590DP | Q/BQB 418-2003 | |
| B400/780DPE+Z,B400/780DPE+ZN | B400/780DP | ||
| B340LAE+Z,B340LAE+ZN | B340LA | Q/BQB 419-2003 | |
| B410LAE+Z,B410LAE+ZN | B410LA | ||