Product Description
It mainly has good elasticity, and because it works under dynamic load environment, the most important material for manufacturing spring should have high yield strength; It will not cause plastic deformation under heavy load; It shall have high fatigue strength and long service life under repeated load; And have enough toughness and plasticity to prevent sudden brittle fracture under the action of impact force. Spring is used under impact, vibration or long-term cross stress, so spring steel is required to have high tensile strength, high elastic limit and high fatigue strength. In terms of process, spring steel is required to have certain hardenability, not easy to decarburize and good surface quality, that is, high-quality carbon structural steel with carbon content WC in the range of 0.6-0.9. Alloy spring steels are mainly silicon manganese series steels, and their carbon content is slightly lower. Their properties are mainly improved by increasing silicon content WSI; In addition, there are chrome, tungsten vanadium alloy spring steel. In recent years, combined with Chinese resources and according to the requirements of new technology for automobile and tractor design, a new steel type with boron, niobium, molybdenum and other elements added to silicon manganese steel has been developed, which has prolonged the service life of the spring and improved the quality of the spring.
The steel strip is divided into ordinary steel strip and high-quality steel strip according to the material used; According to the processing method, it is divided into hot-rolled steel strip and cold-rolled steel strip.
In recent years, the production of galvanized sheet in China has increased year by year, while the import volume is also increasing year by year, and the growth rate is even higher than that of production; At the same time, the production of Carbon Steel Plate, Carbon Steel Coil, galvanized coil, Color Coated Coil, Carbon Steel Pipe, galvanized pipe and other products is also increasing year by year, and the steel market can be expected in the future.
Product Specification
Item | HARDENED AND TEMPERED STEEL STRIP |
Standards | AISI,ASTM,DIN,JIS,GB,BS |
Grade | 65Mn,SK5,SKS51,80CrV2,D6A,X32 |
Thickness | 0.2mm-3.0mm |
Width | 10mm-350mm |
Surface treatment | Hardened and tempered rolled / Oiled / Annealed / Bright |
Chemical Composition | Carbon C: 0.80 ~ 0.90 Silicon Si: 0.10-0.35 Mn: 0.10-0.50 Sulfur s: ≤ 0.030 Phosphorus P: ≤ 0.030 Chromium Cr: allowable residual content ≤ 0.25, ≤ 0.10 (when manufacturing lead bath quenched steel wire) Nickel and Ni: allowable residual content ≤ 0.20, ≤ 0.12 (when manufacturing lead bath quenched steel wire) Copper Cu: allowable residual content ≤ 0.30, ≤ 0.20 (when manufacturing lead bath quenched steel wire) Note: the allowable residual content Cr + Ni + Cu ≤ 0.40 (when manufacturing lead bath quenched steel wire) |
Mechanical Property | Hardness: annealing, ≤ 187hb, indentation diameter ≥ 4.40mm; Quenching, ≥ 62Hrc |
Product Display
Packing & Delivery
1. Each coil is closely covered by oil paper or plastic film.
2. Outside it is firmly packed with sack cloth or compound paper.
3. Steel strap or PP strap to pack the outside to ensure safety.
4. On/about 1000kgs to be packed with one wooden pallet.
5. Strips can be loaded to 20'FCL without pallet if required by customer.
6. LCL shipment can also be arranged once required by the customer.
FAQ
Q: Are you a manufacturer?
A:Yes, we are a steel manufacturer and we have our own plant in Shandong, China. We are producing and exporting steel in various sizes. We promise that we are what you are looking for.
Q:Can we visit your factory ?
A:Warmly welcome once we have your schedule we will pick you up .
Q: Do you have quality control?
A: Yes, we can accept BV, SGS third inspection .
Q: Can you arrange the shipment?
A: Sure, we have permanent freight forwarder who can gain the best price from most ship company and offer professional service.
Q: How long is your delivery time?
A: Generally it is 7-14 days if the goods are in stock. or it is 25-35 days if the goods are not in stock, it is according to quantity.
Q:How can we get the offer?
A:Please offer the specification of the product,such as material,size,shape,etc.So we can give the best offer.
Q:Can we get the some samples?Any charges?
A:Yes,you can get available samples in our stock.Free for real samples,but customers need to pay the freight cost.
Q: How do you make our business long-term and good relationship ?
A: 1.We keep good quality and competitive price to ensure our customers' benefit.
2.We respect every customer as our friend and we sincerely do.