Product Name | 17 gauge steel wire 72a 77b high carbon steel wire rod |
Standard | DIN 17223-1, EN 10270-1, JIS G 3521, IS 4454, A 227M, GB/T 4357, GB/T4358 |
Wire Size: | 1.20-5.00mm |
Chinese Material | 40#, 45#, 42A, 42B, 47A, 47B, 60#, 62A, 62B, 65#, 67A, 67B, 70#, 72A, 72B, 75#, 77A, 77B, 80#, 82A, 82B, 85# |
Japanese Industrial Standard Steel Grade | SWRH 42A, SWRH 42B, SWRH 47A, SWRH 47B, SWRH 52A, SWRH 52B, SWRH 57A, SWRH 57B, SWRH 62A, SWRH 62B, SWRH 67A , SWRH 67B, SWRH 72A, SWRH 72B, SWRH 77A, SWRH 77B, SWRH82A, SWRH82B |
UNS Grade No.: | SAE1040, SAE1045,SAE1050, SAE1055, SAE1060, SAE1065, SAE1070, SAE1080,SAE1084. |
British Standard Steel Name: | C42D, C48D, C60D, C62D, C66D, C68D, C70D, C72D, C76D, C78D, C80D, C82D,C86D. |
Springs Usage | Helical Springs(tension, compression and torsion springs), Mattress steel wire, bed steel wire, sofa steel wire, Springs for mattress, mattress frame wires, Pocket coil mattress wire, sofa wires, etc. |
Other Products Name | High Carbon Steel Wire, Spring Steel Wire, Coil Spring Steel Wire, Black Steel Wire, Hard drawn steel wire, Phosphated steel wire, Ungalanized Steel Wire, Medium Carbon Steel Wire, etc. |
Round steel wire for springs Patented cold drawn,carbon steel wire for springs Technical delivery conditions | DIN 17223 | ||||||||||||
Wire grade | Nominal diameter mm | Chemical composition (cast analysis)% by mass | |||||||||||
C | Si max | Mn | P | S | Cu max | ||||||||
A | 1.00 to 10.00 | 0.40 to 0.85 | 0.35 | 0.30 to 1.00 | 0.04 | 0.040 | 0.20 | ||||||
B | 0.30 to 6.00 6.30 to 14.00 15.00 to 20.00 | 0.55 to 0.85 0.40 to 0.85 0.40 to 0.85 | 0.35 0.35 0.35 | 0.30 to 1.00 0.30 to 1.00 0.30 to 1.50 | 0.040 0.040 0.040 | 0.040 0.040 0.040 | 0.20 0.20 0.20 | ||||||
C | 2.00 to 6.00 6.30 to 20.00 | 0.70 to 1.00 0.50 to 1.00 | 0.35 0.35 | 0.30 to 1.50 0.30 to 1.50 | 0.030 0.030 | 0.030 0.030 | 0.12 0.12 | ||||||
D | 0.07 to 6.00 6.30 to 20.00 | 0.70 to 1.00 0.50 to 1.00 | 0.35 0.35 | 0.30 to 1.50 0.30 to 1.50 | 0.030 0.030 | 0.030 0.030 | 0.12 0.12 |
Diameter | Tensile Strength | Torsion number | Bend Number | ||
Grade A | Grade B | ||||
1.30mm | 1640-1890 | 1900-2130 | 37 | 12 | |
1.40mm | 1620-1860 | 1870-2100 | 37 | 12 | |
1.70mm | 1570-1800 | 1810-2030 | 42 | 15 | |
1.75mm | 1570-1800 | 1810-2030 | 42 | 15 | |
1.80mm | 1550-1780 | 1790-2010 | 40 | 14 | |
1.90mm | 1540-1760 | 1770-1990 | 41 | 15 | |
2.00mm | 1520-1759 | 1760-1970 | 41 | 10 | |
2.20mm | 1510-1730 | 1740-1960 | 41 | 10 | |
2.25mm | 1490-1710 | 1720-1930 | 41 | 10 | |
2.30mm | 1490-1710 | 1720-1930 | 41 | 10 | |
2.40mm | 1470-1690 | 1700-1910 | 41 | 10 | |
2.64mm | 1450-1660 | 1670-1880 | 43 | 23 | |
3.10mm | 1410-1620 | 1630-1830 | 39 | 17 | |
3.25mm | 1390-1600 | 1610-1810 | 39 | 17 | |
3.80mm | 1340-1540 | 1550-1740 | 38 | 12 | |
4.50mm | 1290-1490 | 1500-1680 | 36 | 18 | |
5.00mm | 1260-1450 | 1460-1650 | 20 | 16 |
Steel wire for mechanical springs-patented cold drawn unalloyed spring steel wire | EN 10270-1:2001 | ||
Tensile strength | Static | Dynamic | |
Low Tensile strength Medium Tensile strength High Tensile strength | SL SM SH | - DM DH |
JIS G 3521 Hard Drawn Steel Wire | ||||||
Level | Diameter | Note | ||||
A | SW-A | From 0.08mm to 10.0mm | - | |||
B | SW-B | From 0.08mm to 13.0mm | Mainly for static load springs | |||
C | SW-C |