Complaint
| 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 |
