Basic Info.
Model NO.
spring steel wire
Delivery Time
7-15 Days
Diameter
0.1 - 40mm,While We Can Accept Special Sizes.
Coil Weight
5-1000kgs Depends on Different Sizes.
Grade
316, 304, 201, 202 etc. 60#, 70#, 75#, 72A, 72b...
Applications
Spring, Spring Washer, Chain Bush, Tiller Spring..
Tolerance
±1%
MOQ
1 Ton
Price Terms
Fob, CFR, CIF, EXW
Tensile Strength (RM)
1250 to 2200 N/mm²
Material
Carbon Steel (SWC), Stainless Steel (SUS)
Transport Package
Standard Sea-Worthy Package or as Required
Specification
Standard Or Customized
Trademark
DELONG
Origin
Shandong
Production Capacity
5000 Tons/Month
Product Description
Spring steel wire is one kind of steel wire used for spring or wire form. According to the different application area of spring, the quality requirement of spring steel wire has a very big difference. We make various spring steel wires for mattress, bumper, suspension spring, engine valve, camera shutter and so on. The steel spring wire can also be classified into 4 main types based on manufacturing technology: galvanized spring s teel wire, patented spring steel wire, oil tempered steel wire and general type wire.The raw materials for spring steel wire include 65#,70#,65Mn, 82B,72A,72B steel wire rod.
Spring steel wire applications include springs for garage doors, industrial springs, tension springs, circlips, torsion springs, mattress springs, spiral bindings, conveyor belts and sieves.
Spring steel wire applications include springs for garage doors, industrial springs, tension springs, circlips, torsion springs, mattress springs, spiral bindings, conveyor belts and sieves.
| Diameter | 0.1 - 40mm |
| Material | carbon steel (SWC), stainless steel (SUS), music wire (SWP), alloy steel, SEA9260/9254/6150, SUP9/SUP10/SUP12, 51CrV4, inconel X750, etc. |
| Grade | 316, 304, 201, 202 etc. 60#, 70#, 75#, 72A, 72B, 82B, 65Mn |
| Standard | Din17223-1, EN10270-1; ASTM A227, ASTM A228, ASTM A313; JIS G3521, JIS G3522, JIS G4314 |
| Packing | in coil |
| Coil weight | 5-1000kgs depends on different sizes. Normally it is oiled to anti rust. |
| Tensile strength (Rm) | 1250 to 2200 N/mm², depending on the diameter of the wire |
| Surface Treatment | zinc plated, electrophoresis, oxidation black, powder coating, blasting, geomet, rust-preventative oil, nickel plated, etc. |
| Heat Treatment | after the forming process of the spring the tensile strength can be increased by heat treatment (a plus of approx. 150 N/mm²) the heat treatment also smoothes out the tensions of the forming process the EN-Standard recommendation reaches from annealing at 250°C for 4 hours to 425°C for 30 minutes; cooling down by air |
| Application | It finds application in varied types of industries ranging from automotive to mattress springs, and for various end uses like spring, spring washer, chain bush, tiller spring, etc. |
| Tolerance | ±1% |
| MOQ | 1 ton |
| Supply Ability | 5000 tons / month |
| Lead Time | 7-15 working days after the receipt of 30% deposit |
| Payment Terms | 30%T/T Advance + 70% Balance |
| Price Terms | FOB, CFR, CIF, EXW |
| Packing | Standard sea-worthy package or as required |
| DIAMETER (mm) | TENSILE STRENGTH (MPa) | TORSIONS Min./360° | |
| 1 | 0.3 | 2010-3000 | 20 |
| 2 | 0.45 | 2200-2600 | 20 |
| 3 | 0.5 | 2200-2600 | 20 |
| 4 | 0.55 | 2150-2550 | 20 |
| 5 | 0.6 | 2110-2500 | 20 |
| 6 | 0.7 | 2060-2450 | 20 |
| 7 | 0.8 | 2010-2400 | 20 |
| 8 | 0.9 | 2010-2350 | 20 |
| 9 | 1 | 1960-2300 | 20 |
| 10 | 1.2 | 1910-2250 | 20 |
| 11 | 1.4 | 1860-2210 | 20 |
| 12 | 1.6 | 1810-2160 | 20 |
| 13 | 1.8 | 1760-2110 | 15 |
| 14 | 2 | 1710-2010 | 15 |
| 15 | 2.3 | 1660-1960 | 15 |
| 16 | 2.6 | 1660-1960 | 15 |
| 17 | 2.9 | 1620-1910 | 12 |
| 18 | 3.2 | 1570-1860 | 12 |
| 19 | 3.6 | 1570-1810 | 12 |
| 20 | 4 | 1570-1810 | |
| 21 | 4.5 | 1520-1710 | |
| 22 | 5 | 1470-1710 | |
| 23 | 5.5 | 1470-1710 | |
| 24 | 6.0-8.0 | 1370-1660 | |
| 25 | 9.0-14.0 | 1130-1420 |
| HIGH-CARBON SPRING WIRE | |||||
| Material | Music Wire | Hard Drawn | High Tensile Hard Drawn | Oil Tempered | Carbon Valve |
| ASTM A 228 | ASTM A 277 | ASTM A 679 | ASTM A 229 | ASTM A 230 | |
| Nominal Analysis | C-.70 - 1.00% Mn-.20 - 60% | C-.45 - .85% Mn-.60 - 1.30% | C- .65 - 1.00% Mn- .20 - 1.30% | C- .55 - .85% Mn- .60 - 1.20% | C- .60 - .75% Mn- .60 - .90% |
| Minimum Tensile Strength | 230-3999 | CLI 147-283 CLII 171-324 | 238-350 | CLI 165-293 CLII 191-324 | 215-240 |
| Modulus of Elasticity E psi x 106 | 30 | 30 | 30 | 30 | 30 |
| Design Stress % Minimum Tensile | 45 | 40 | 45 | 45 | 45 |
| Modulus in Torsion G psi x 106 | 11.5 | 11.5 | 11.5 | 11.5 | 11.5 |
| Maximum Temp. °F | 250 | 250 | 250 | 250 | 250 |
| Maximum Temp. °C | 121 | 121 | 121 | 121 | 121 |
| Rockwell Hardness | C41-60 | C31-52 | C41-60 | C42-55 | C45-49 |
| Method of Manufacture Chief Uses Special Properties | Cold drawn. High and uniform tensile. High quality springs and wire forms. | Cold drawn. Average stress applications. Lower cost springs and wire forms. | Cold drawn. Higher quality springs and wire forms. | Cold drawn and heat treated before fabrication, General purpose spring wire. | Cold drawn and heat treated before fabrication. Suitable for cyclic applications. |
| Spring Wires Grades | |||
| Grade | Static | Medium fatigue | High fatigue |
| Low tensile strength | FDC | TDC | VDC |
| Medium tensile strength | FDCr (A.B) FDSiMn | TDCrV (A.B) TDSiMn | VDCrV (A.B) |
| High tensile strength | FDCrSi | TDCrSi | VDCrSi |
| Diameter range | 2.80mm~17.00mm | 2.80mm~17.00mm | 2.80mm~10.00mm |
| Diameter(mm) | Tensile strength(N/mm2) |
| 2 | 1770-1970 |
| 2.5 | 1700-1900 |
| 3 | 1650-1850 |
| 4 | 1570-1770 |
| 5 | 1510-1710 |
| 5.6 | 1470-1670 |
| 7.1 | 1410-1610 |
| 8.5 | 1360-1560 |
| 9.5 | 1330-1530 |
| 10 | 1320-1520 |
| 11.8 | 1270-1471 |
