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Material: 302; 304; 316,304M,304MN,201,204;304H; 316; 631; 304ES; D667; 201CU etc.
Wire diameter: 0.3-5.0mm
Characteristics: Excellent straightness & helix with good cast; Uniform & beautiful surface condition; High elasticity and high fatigue resistance; Strong corrosion resistance against exposure to the toughest atmosphere.
Application:
Produced in accordance with the specifications of JIS,with stable linearity And excellent cast and helix,it can be widely used for rolling various precision springs.




Grade |
Tensile Strenght ( N/mm2 ) |
Surface |
Tolerance |
||
Nominal Diameter mm |
1.4310 (302)/304 |
1.4401 (316) |
1.4568 (631) |
||
0.15 - 0.20 |
2200 - 2530 |
1725 - 1980 |
1975 - 2270 |
Bright |
± 0.005 |
0.20 < d ≤ 0.30 |
2150 - 2470 |
1700 - 1955 |
1950 - 2240 |
Bright / Coated |
± 0.005 |
0.30 < d ≤ 0.40 |
2100 - 2415 |
1675 - 1925 |
1925 - 2210 |
Bright / Coated |
± 0.008 |
0.40 < d ≤ 0.50 |
2050 - 2355 |
1650 - 1895 |
1900 - 2185 |
Bright / Coated |
± 0.008 |
0.50 < d ≤ 0.65 |
2000 - 2300 |
1625 - 1865 |
1850 - 2125 |
Bright / Coated |
± 0.008 |
0.65 < d ≤ 0.80 |
1950 - 2240 |
1600 - 1840 |
1825 - 2095 |
Bright / Coated |
± 0.010 |
0.80 < d ≤ 1.00 |
1900 - 2185 |
1575 - 1810 |
1800 - 2070 |
Coated |
± 0.010 |
1.00 < d ≤ 1.25 |
1850 - 2125 |
1550 - 1780 |
1750 - 2010 |
Coated |
± 0.015 |
1.25 < d ≤ 1.50 |
1800 - 2070 |
1500 - 1725 |
1700 - 1955 |
Coated |
± 0.015 |
1.50 < d ≤ 1.75 |
1750 - 2010 |
1450 - 1665 |
1650 - 1895 |
Coated |
± 0.015 |
1.75 < d ≤ 2.00 |
1700 - 1955 |
1400 - 1610 |
1600 - 1840 |
Coated |
± 0.015 |
2.00 < d ≤ 2.50 |
1650 - 1895 |
1350 - 1550 |
1550 - 1780 |
Coated |
± 0.020 |
2.50 < d ≤ 3.00 |
1600 - 1840 |
1300 - 1495 |
1500 - 1725 |
Coated |
± 0.020 |
3.00 < d ≤ 3.50 |
1550 - 1780 |
1250 - 1435 |
1450 - 1665 |
Coated |
± 0.020 |
3.50 < d ≤ 4.25 |
1500 - 1725 |
1225 - 1410 |
1400 - 1610 |
Coated |
± 0.020 |
4.25 < d ≤ 5.00 |
1450 - 1665 |
1200 - 1380 |
1350 - 1550 |
Coated |
± 0.025 |
5.00 < d ≤ 6.00 |
1400 - 1610 |
1150 - 1320 |
1300 - 1495 |
Coated |
± 0.025 |
6.00 < d ≤ 7.00 |
1350 - 1550 |
1125 - 1290 |
1250 - 1435 |
Coated |
± 0.025 |
7.00 < d ≤ 8.50 |
1300 - 1495 |
1075 - 1235 |
1250 - 1435 |
Coated |
± 0.030 |
8.50 < d ≤ 10.00 |
1250 - 1435 |
1050 - 1205 |
1250 - 1435 |
Coated |
± 0.030 |
11.00 < d ≤ 13.00 |
930 - 1140 |
895 - 1105 |
--- |
Coated |
± 0.030 |
13.00 < d ≤ 16.00 |
895 - 1105 |
860 - 1070 |
--- |
Coated |
± 0.030 |