Mild Steel Square Bars
1. Commodity: Mild Steel Square Bars.
2. Application:
*Used to roll deformed bars
*Used to be cold drawn bars to be as automobile components such as shafts, axles, weights etc.
*Used as crane rails.
3. Production Line: EAF(EBT) → LF → VD → Continuous Casting → Hot Rolled
4. Steel Grades in Different Standards
| GB | JIS | DIN | ASTM/SAE/AISI |
| Q235 | SS400 | S235JR | A36 |
| 20# | S20C | C22 | 1020 |
5. Chemical composition:
| C | SI | MN | S | P | CR |
| 0.22 (MAX) | 0.37 (MAX) | 1.40 (MAX) | 0.035 (MAX) | 0.035 (MAX) | 0.30-0.40 |
6. Mechanical Properties:
| Yield Strength (MPa) | Tensile Strength (MPa) | Elongation (%) |
| 235(min) | 400(min) | 21(min) |
7. Dimensions:
| Hot Rolled | 10*10mm to 150*150mm |
| Cold Drawn | 20*20mm to 60*60mm |
| Forged | 100*100mm to 800*800mm |
8. Dimension Tolerance:
| 5.5-7 | 7-20 | 20-30 | 30-50 | 50-80 | 80-110 | 110-150 | 150-190 | 190-250 |
+0.30
-0.30 | +0.35
-0.35 | +0.40
-0.40 | +0.50
-0.50 | +0.70
-0.70 | +1.0
-1.0 | +1.3
-1.3 | +2.0
-2.0 | +2.5
-2.5 |
9. Length: The ends will be saw cut, not flame or gas cut. The ends will be from burrs and slag lumps. Length can be customized according to customers' demands.
10. Straightness: 3mm/m
11. Markings: Material, Dimension, Heat No.
12. Packing:
*Bars from different heats will not be mixed and dispatched.
*Bars will be bundles and securely metal strapped in 3 min places of the bar length and tagged properly.
*For further processing products such as cold drawn/peeled or heat treated goods, plastics bag wrapped or pallet loading is available according to customer's demands.
Qingdao Helio Steel Co., Ltd. Was established in March19, 2012. Our company's business staff members possess professional service capabilities of steel products, with more than a decade of experience on steel production, technology development, product sales and foreign trade. We comply the principle of friendly cooperation and mutual benefit, and persist in developing together with new and old customers.
Our company is located in Qingdao, a coastal city of Shandong Province, which is near Laiwu Steel Group. Only Laiwu City has steel production capacity of 20 million tons each year. Meanwhile, it is also the largest production base of powder metallurgy products in the whole country. Otherwise, there are more than ten well-known steel manufacturers within the province and the surrounding areas, so steel resources here is abundant and we can meet customers' various requirements.
Our company is mainly engaged in steel products for various specifications and materials, such as continuous casting billets, continuous casting tubes, hot-rolled bars, tubes, hot-rolled square steel, flat steel, H section steel, hot-rolled coils, cold-roll large-size panels, forging materials, and forgings.
We also run the import and export of steel products, based on the needs of customers at home and abroad to develop a variety of special steel products and timely delivery. I hope to sincerely cooperate with domestic and foreign customers, providing high-quality and low-priced products and professional services.
