Product Description
Alloy spring steel is a kind of steel that can improve the mechanical properties, hardenability and other properties of steel by adding one or several alloy elements on the basis of carbon steel to meet the requirements for manufacturing various springs. The basic composition series of alloy spring steel include silicon manganese spring steel, silicon chromium spring steel, chromium manganese spring steel, chromium vanadium spring steel, tungsten chromium vanadium spring steel, etc. On the basis of these series, some brands add alloy elements such as molybdenum, vanadium or boron to improve their performance in some aspects. Grade | C | Si | Mn | P | S | Cr | Ni |
minimum value | 0.49 | 1.2 | 0.7 | - | - | 0.7 | 0.5 |
Maximum value | 0.56 | 1.5 | 1 | 0.025 | 0.025 | 1 | 0.7 |
Low alloy high strength structure steel | Q295, Q345, Q390, Q420, Q460 | 16mm-250mm |
Prime Carbon structure steel | 10#, 20#, 35#, 45#, 60#, 20Mn, 65Mn, B2, B3, JM20, SH45,S45C, C45 | 16mm-250mm |
Alloy structure steel | 30Mn2, 40Mn2, 27SiMn, 42Crmo, 20Cr,40Cr,20CrMo, 35CrMo, 20CrMnTi, 30CrMnTi, 20MnVB, 20MnTiB, 45MnV, 20CrNiMo, Q345B, 35MnBM,40MnB,36Mn2V, | 16mm-250mm |
Spring Steel | 65Mn, 60Si2Mn, 50CrVA | 16mm-250mm |
Bearing Steel | GCr15, GCr15GD,55SiMoV | 16mm-250mm |
Structural steels subject to end-quench hardenability requirements | 20CrMnTi, 30CrMnTi, 20Cr, 40Cr, 30CrMo, 42CrMoA, 27SiMn, 40Mn2H, 20CrNiMo, 40Mn2, q345b,35MnBM, 40MnB,45MnV. | 16mm-250mm |
Oil wells structural steel | 37Mn5, 36Mn2V | 16mm-250mm |
Marine anchor chain steel | CM490, CM690, M30Mn2 | 16mm-250mm |
GB | ISC | CNS | JIS | KS | AISI | UNS | ISO | DIN EN/DIN | W-Nr. |
55SiCrA | A21553 | SUP12 | SUP12 | SPS8 | 9254 | G92540 | 55SiCr6-3 | 54SiCr6 | 1.7102 |
condition | Heat treatment or condition | tensile strength σb Mpa | Yield point σs Mpa | Elongation δ % | Reduction of area ψ % | hardness HBW | Impact absorbed energy KV2 J |
bar | +QT | 1450-1750 | ≥1300 | ≥6 | ≥35 | - | KU ≥10 |
bar | +S | - | - | - | - | ≤280 | - |
bar | +A | - | - | - | - | ≤248 | - |
bar | +AC | - | - | - | - | ≤230 | - |
61SiCr7 (1.7108) is a widely used silicomanganese 61SiCr7 (1.7108) 61SiCr7 (1.7108), and its elasticity and hardenability are slightly higher than those of 55Si2Mn. It is suitable for the production of flat springs bearing large loads or coil springs with wire diameter less than 30mm in the railway vehicle, automobile and tractor industries, as well as for the production of heat-resistant springs in non corrosive media with working temperature below 250 ºC and large important coiled springs bearing alternating loads and working under high stress.
Alloy structural steel is widely used in ships, vehicles, aircraft, guided missiles, weapons, railways, bridges, pressure vessels, machine tools, mechanical components with large section size and other fields. Power Generation - Turbine Fasteners - Boiler Support Rods Processing plant - fasteners Mechanical gear, gear shaft, spindle, valve rod Mechanical parts - connecting rods, bolts and nuts
Packaging | 1. by bundles, each bundle weight under 3 tons, for small outer diameter steel bars, each bundle with 4 - 8 steel strips. 2. after making by bundle, covered with Polyethylene waterproof cloth. 3. make black paints painting on each bar, then make bundles |
| 20 feet container contains dimension | Length under 6000mm |
| 40 feet container contains dimension | Length under 12000mm |
| By bulk vessel | Freight charge is low by bulk cargo, and large heavy sizes can not be loaded into containers can shipping by bulk cargo |
1. Who are we?
Our headquarter is located in Shandong, China. Since 2023, we have sold to North America (60.00%), Western Europe (14.00%) and South America (6.00%). There are about 11-50 people in our office.
2. How do we guarantee quality?
Always provide pre-production samples before mass production;
Always carry out final inspection before shipment;
3. What can you buy from us?
Copper, aluminum, die steel, titanium, customized machine parts
4. Why should you buy from us instead of other suppliers?
The company has 25 years of production experience. It has advanced precision production equipment, modern large warehouse, 200000 tons of inventory goods and a number of long-term stable cooperative customers.
5. What services can we provide?
Accepted delivery conditions: FOB, CFR, CIF, EXW
Accepted payment currency: US dollar, Euro, Japanese yen, Canadian dollar, Australian dollar, Hong Kong dollar, British pound, RMB, Swiss franc;
Accepted payment type: T/T, L/C, D/P D/A, PayPal;
Optional ports: Tianjin, Shanghai, Guangzhou;
Spoken: English, Chinese
6. How can we get your price?
A. We need the following information to quote for you:
1). Product Name
2). standard
3). Material grade (chemical composition)
4). dimension
5). amount
6). Special part drawin