hot rolled sup10 spring flat steel
hot rolled sup10 spring flat steel
Specification of Spring steel flat bar
Spring steels are mainly used for the manufacture of different kinds of springs for the automotive industry. These steels are usually alloyed with chromium or silicon with additions of vanadium and molybdenum, where bigger sizes are required. After quenching and tempering, a relatively high yield strength can be achieved
| Technical Specifications | |||
| Measurement | Thickness | Width | Length |
| 6mm~35mm | 40mm~150mm | 4m-8m (customized) | |
| Certificate | ISO 9001: 2008 | ||
| Standard | GB JIS DIN SAE ASTM AISI | ||
| Bundle Weight | Around 2.0 MT | ||
| MOQ | 10MT or Can be Negotiated | ||
| Technique | Hot Rolled | ||
| Surface | Grooved | Plain-smoothed | |
| Quenchant | Oil/Water | ||
| Raw Material | Concast Steel Billets (150x150mm) | ||
| Temper Stressing | 480°C-560°C | ||
| Quenching Temprature: | 800°C-1000°C | ||
| OEM | Material Composition Offered by Customers | ||
| Application | sup9/sup9a/sup10/55Cr3/50CrV4 | Automotive suspension springs | |
| sup7/9260/30CrMnB/27CrMnB | Rotary tools and Blades | ||
| Capacity | 1000-2000 MT/Day, Over 400,000 MT/Year | ||
| Payment Term | 100% L/C at Sight. | 30% T/T Down Payment, Balance Against B/L Copy. | |
| Shipment Time | 10-20 working days after confirming the order | ||
| Packing | In bundles. Each bundle packed with 2 steel strips and 3 steel wires. | ||
Our most common steel grades
In the following tables you will find the standard production programme at Daqiang. These are only the basic steel designations and grades. Working together with you as a customer, we can also offer products tailored to meet your specifications.
| Product Chemical Composition (%) | ||||||||||
| STANDARD | C | Si | Mn | Cr | V | P | S | |||
| GB | SAE | JIS | DIN | ≤ | ||||||
| 65Mn | 1066 | 0.62-0.70 | 0.17-0.37 | 0.90-1.20 | ≤0.25 | 0.035 | 0.035 | |||
| 60Si2Mn | 9260 | SUP6 | 60Si7 | 0.56-0.64 | 1.50-2.00 | 0.60-0.90 | ≤0.35 | 0.035 | 0.035 | |
| 60Si2MnA | 9260 | SUP7 | 60Si7 | 0.56-0.64 | 1.60-2.00 | 0.60-0.90 | ≤0.35 | 0.025 | 0.025 | |
| 55CrMnA | 5155 | SUP9 | 55Cr3 | 0.52-0.60 | 0.17-0.37 | 0.65-0.95 | 0.65-0.95 | 0.025 | 0.025 | |
| 60CrMnA | 5160/h | SUP9A | 0.56-0.64 | 0.17-0.37 | 0.70-1.00 | 0.70-1.00 | 0.025 | 0.025 | ||
| 50CrVA | 6150 | SUP10 | 51CrV4 | 0.46-0.54 | 0.17-0.37 | 0.50-0.80 | 0.80-1.10 | 0.10-0.20 | 0.025 | 0.025 |
| 30CrMnB5 | 0.27-0.31 | 0.15-0.30 | 1.10-1.40 | 0.35-0.40 | 0.035 | |||||
| STANDARD | Heat Treatment | Mechanical Property [≥] | |||||||
| GB | SAE | JIS | DIN | Quenching Temprature°C | Quenchant | Temper Stressing °C | Tensile Strength Rm/[N/mm2] | Yield Strength ReL/[N/mm2] | HBW≤ |
| 65Mn | 1066 | 830 | Oil | 540 | 980 | 785 | 302 | ||
| 60Si2Mn | 9260 | SUP6 | 60Si7 | 870 | 480 | 1275 | 1180 | 321 | |
| 60Si2MnA | 9260 | SUP7 | 60Si7 | 870 | 440 | 1570 | 1375 | 321 | |
| 55CrMnA | 5155 | SUP9 | 55Cr3 | 830-860 | 460-510 | 1225 | 1080(Rpo 2) | 321 | |
| 60CrMnA | 5160/h | SUP9A | 830-860 | 460-520 | 1225 | 1080(Rpo 2) | 321 | ||
| 50CrVA | 6150 | SUP10 | 51CrV4 | 850 | 500 | 1275 | 1130 | 321 | |
Tianjin Daqiang Spring steel flat bar
As a leading manufacturer in China,Tianjin Daqiang Steel has dedicated in Spring steel flat bar production for more than 20 years.
Application of Spring steel flat bar
Spring steel flat bar, as its name suggests, is most commonly used in the production of leaf springs. also used in Cultivator Blades, Garden Tools, Knifes etc. When hardened and tempered (as supplied, or heat treated by the customer) it offer excellent spring characteristics.
- Automobile leaf spring
- Agricultural machinery &implements
- Garden tools
Packaging of spring steel flat bar
Tianjin Daqiang Steel provides standard seaworthy packaging for worldwide customers, for hot rolled flat steel, we packed the flat bar in bundles, fixed by steel stripd and labelled with Tianjin Daqiang shipping mark.
Our services
Backed by a team of experienced professionals, we are offering Spring Steel Flat Bar. Owing to features, our offered products are widely demanded in the global market. To meet the international standards, this product is stringently tested on various parameters before the final delivery at the clients end. Our clients can avail the entire range at reasonable prices.
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