Q195 hot rolled flat steel Low carbon for easy bending and welding Ideal for ventilation ducts brackets and hardware structures
Product Advantages
Q195 flat steel offers six key product advantages. First, it features low carbon and softness, with carbon content controlled within 0.12%, providing good plasticity and no cracking during cold bending. Second, it is easy to weld, with excellent weldability that works with common electrodes and gas-shielded welding. Third, it has a smooth surface, achieved through advanced hot rolling processes, ensuring high dimensional accuracy and good straightness. Fourth, it is customizable, supporting value-added services such as custom cutting, punching, bending, and galvanizing. Fifth, it has sufficient stock, with regular sizes available from inventory for fast delivery. Sixth, it comes with full certificates, including mill test certificates provided with each shipment and third-party inspection available upon request.
Product Applications
| Industry | Specific Applications |
|---|---|
| Ventilation Engineering | Duct flanges, brackets, lifting lugs |
| Construction | Stair treads, platform railings, embedded parts |
| Hardware Products | Door & window fittings, lock base plates, hinges |
| Agricultural Machinery | Farm machinery frames, plow parts, fence rails |
| Electrical | Busbar channels, grounding rods, cable trays |
| Transportation | Truck body frames, container fittings |
Production Process
| Step | Description |
|---|---|
| 1. Raw Material Inspection | Select Q195 billets, inspect C, Si, Mn, P, S content |
| 2. Heating | Heat billets in furnace to 1150–1200°C |
| 3. Hot Rolling | Roll through multi-stand hot rolling mills to flat shape |
| 4. Cooling | Natural air cooling or controlled cooling to optimize microstructure |
| 5. Straightening | Pass through straightener to meet flatness standards |
| 6. Cut to Length | Cut to 6m/9m/12m or custom length as required |
| 7. Surface Treatment (optional) | Pickling for scale removal, anti-rust oiling, or hot-dip galvanizing |
| 8. Inspection & Packaging | Check dimensions, surface, mechanical properties before packing |
Product Attributes
| Attribute | Parameter |
|---|---|
| Material Standard | GB/T 700 – Q195 (equivalent to ASTM A36 low-strength grade / JIS SS330) |
| Carbon Content | ≤ 0.12% |
| Silicon Content | ≤ 0.30% |
| Manganese Content | ≤ 0.50% |
| Phosphorus Content | ≤ 0.035% |
| Sulfur Content | ≤ 0.040% |
| Tensile Strength | 315–430 MPa |
| Yield Strength | ≥ 195 MPa |
| Elongation | ≥ 33% (thin sections) |
| Process | Hot Rolled (HR) |
| Size Range | Width 10–200 mm；Thickness 3–30 mm |
| Length | Standard 6m/9m/12m, or custom |
| Surface Finish | Black (untreated), pickled, oiled, hot-dip galvanized |
| Workability | Excellent (cold bending, stamping, welding, forming) |
Specification Table (Q195)
| Width (mm) | Thickness (mm) | Theoretical Weight (kg/m) | Common Use |
|---|---|---|---|
| 20 | 3 | 0.47 | Grounding rod / Decorative strip |
| 25 | 4 | 0.78 | Ventilation duct flange |
| 30 | 4 | 0.94 | Bracket / Lifting lug |
| 40 | 5 | 1.57 | Agricultural machinery parts / Fence |
| 50 | 6 | 2.35 | Busbar channel / Door & window fitting |
| 60 | 8 | 3.77 | Building bracket / Embedded part |
| 80 | 10 | 6.28 | Platform railing / Stair tread |
| 100 | 12 | 9.42 | Machinery frame / Truck body frame |
Surface Treatment, Packaging and Transportation
Surface treatment: including bare material (Bare), galvanized (Galvanized), painted (Painted), etc. Galvanizing can significantly improve corrosion resistance.
Packing method: usually bundled into rolls or loaded into containers (20/40 feet), suitable for sea or land transportation needs.
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1. Who are we?
We are headquartered in Tianjin, China, started in 2016, selling to Middle East(40.00%), South America(15.00%), Southeast Asia(15.00%), South Asia(5.00%), East Asia(5.00%), North America(5.00%), Africa(5.00%), Oceania(3.00%), Southern Europe(2.00%), Central America(2.00%), Western Europe(1.00%), Northern Europe(1.00%), Eastern Europe(1.00%). Totally we have more than 100 people in our office.
2. How do we ensure quality?
Always pre-production samples before mass production;
Always final inspection before shipment;
4. Why should you buy from us instead of other suppliers?
China's largest profile manufacturer
Annual production capacity of 5 million tons
Fast delivery time
Sky Steel has the largest profile inventory
Sky Steel has BV, CE, ISO, JIS, PHD, EPD, BC1, certificates
5. What services can we provide?
Accepted delivery terms: FOB, CFR, CIF, EXW;
Accepted payment currencies: USD, EUR, JPY, CAD, AUD, HKD, GBP, RMB, CHF;
Accepted payment methods: T/T, L/C, PayPal, Cash;
Languages used: English, Chinese, Spanish, Japanese, Portuguese, German, Arabic, French, Russian, Korean, Hindi, Italian