Quality |
 |
Close combination of high strength and ductility |
|
Consistency of physical
properties |
|
Appropriate surface finish |
|
Proper coil characteristic and uniform winding |
|
Rigid quality control from
Steel to Wire |
|
Narrow size tolerances |
ISO 9002:1984
TS 16949
QS 9000
ISO 9001:2000
EMS 14001:1996 |
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|
 |
 |
Spring Wire |
Tata Wiron Spring Wires find use as tension and compression springs in two wheelers, four wheelers and general engineering industry for applications ranging from Shock Absorbers to Clutch Brake Springs, to Mattress Spring etc.
Tata Steel Wire Division is one of the first Steel Wire Companies in India to get ISO 9002:1984 certification.
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|
 |
» Quality Assurance |
| |
- Inbuilt quality checks at all stages of production from steel making to hot rolling and wire drawing.
- Carefully designed drawing process to ensure optimum properties.
- Uniform coil weight.
- Traceability of coils.
- Attributes are tested for Size, Breaking load, Tensile strength, Elongation, Bends, Yield Strength, Modulus of Elasticity and any other customer specific requirements.
- Each shipment is accompanied by a certified Mill Test Certificate.
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| |
» Manufacturing Process |
| |
» Product Standard |
| |
| IS 4454 2001 Standard |
Nominal
Diameter (mm) |
Tensile Strength (Mpa) |
Grade SL |
Grade SM |
Grade DM |
>Grade SH |
Grade DH |
1 |
2 |
3 |
4 |
5 |
6 |
0.6 |
|
2140-2400 |
2140 - 2400 |
2410-2670 |
2410 - 2670 |
0.63 |
|
2130-2380 |
2130 - 2380 |
2390-2650 |
2390 - 2650 |
0.65 |
|
2120-2370 |
2120 - 2370 |
2380 -2640 |
2380 - 2640 |
0.7 |
|
2690-2350 |
2090 - 2350 |
2360-2610 |
2360 - 2610 |
0.75 |
|
2070-2330 |
2070-2330 |
2340-2580 |
2340-2580 |
0.8 |
|
2050-2300 |
2050-2300 |
2310-2560 |
2310-2560 |
0.85 |
|
2030-2280 |
2030-2280 |
2290-2530 |
2290-2530 |
0.9 |
|
2010-2260 |
2010-2260 |
2270-2510 |
2270-2510 |
0.95 |
|
2000-2240 |
2000-2240 |
2250-2490 |
2250-2490 |
1 |
1720 - 1970 |
1980-2220 |
1980-2220 |
2230-2470 |
2230-2470 |
1.05 |
1710 - 1950 |
1960-2220 |
1960-2220 |
2210-2450 |
2210-2450 |
1.1 |
1690 - 1940 |
1950-2190 |
1950-2190 |
2200-2430 |
2200-2430 |
1.2 |
1670 - 1910 |
1920-2160 |
1920-2160 |
2170-2400 |
2170-2400 |
1.25 |
1660 - 1900 |
1910-2130 |
1910-2130 |
2140-2380 |
2140-2380 |
1.3 |
1640 - 1890 |
1900-2130 |
1900-2130 |
2140-2370 |
2140-2370 |
1.4 |
1620 - 1860 |
1870-2100 |
1870-2100 |
2110-2340 |
2110-2340 |
1.5 |
1600 - 1840 |
1850-2080 |
1850-2080 |
2090-2310 |
2090-2310 |
1.6 |
1590 - 1820 |
1830-2050 |
1830-2050 |
2060-2290 |
2060-2290 |
1.7 |
1570 - 1800 |
1810 - 2030 |
1810-2030 |
2040-2260 |
2040-2260 |
1.8 |
1550 - 1780 |
1790-2010 |
1790-2010 |
2020-2240 |
2020-2240 |
1.9 |
1540 - 1760 |
1770-1990 |
1770-1990 |
2000-2220 |
2000-2220 |
2 |
1520 - 1750 |
1760-1970 |
1760-1970 |
1980-2200 |
1980-2200 |
2.1 |
1510 - 1730 |
1740-1960 |
1740-1960 |
1970-2180 |
1970-2180 |
2.25 |
1490 - 1710 |
1720-1930 |
1720-1930 |
1940-2150 |
1940-2150 |
2.4 |
1470 - 1690 |
1700-1910 |
1700-1910 |
1920-2130 |
1920-2130 |
2.5 |
1460 - 1680 |
1690-1890 |
1690-1890 |
1900-2110 |
1900-2110 |
2.6 |
1450 - 1660 |
1670-1880 |
1670-1880 |
1890-2100 |
1890-2100 |
2.8 |
1420 - 1640 |
1650-1850 |
1650-1850 |
1860-2070 |
1860-2070 |
3 |
1410 - 1620 |
1630-1830 |
1630-1830 |
1840-2040 |
1840-2040 |
3.2 |
1390 - 1600 |
1610-1810 |
1610-1810 |
1820-2020 |
1820-2020 |
3.4 |
1370 - 1580 |
1590-1780 |
1590-1780 |
1790-1990 |
1790-1990 |
3.6 |
1350 - 1560 |
1570-1760 |
1570-1760 |
1770-1970 |
1770-1970 |
3.8 |
1340 - 1540 |
1550-1740 |
1550-1740 |
1750-1950 |
1750-1950 |
4 |
1320 - 1520 |
1530-1730 |
1530-1730 |
1740-1930 |
1740-1930 |
4.25 |
1310 - 1500 |
1510-1700 |
1510-1700 |
1710-1900 |
1710-1900 |
4.5 |
1290 - 1490 |
1500-1680 |
1500-1680 |
1690-1880 |
1690-1880 |
4.75 |
1270 - 1470 |
1480-1670 |
1480-1670 |
1680-1840 |
1680-1840 |
5 |
1260 - 1450 |
1460-1650 |
1460-1650 |
1660-1830 |
1660-1830 |
5.3 |
1240 - 1430 |
1440-1630 |
1440-1630 |
1640-1820 |
1640-1820 |
5.6 |
1230 - 1420 |
1430-1610 |
1430-1610 |
1620-1800 |
1620-1800 |
6 |
1210 - 1390 |
1400-1580 |
1400-1580 |
1590-1770 |
1590-1770 |
6.3 |
1190 - 1380 |
1390-1560 |
1390-1560 |
1570-1750 |
1570-1750 |
6.5 |
1180 - 1370 |
1380-1550 |
1380-1550 |
1560-1740 |
1560-1740 |
7 |
1160 - 1340 |
1350-1530 |
1350-1530 |
1540-1710 |
1540-1710 |
7.5 |
1140 - 1320 |
1330-1500 |
1330-1500 |
1510-1680 |
1510-1680 |
8 |
1120 - 1300 |
1310-1480 |
1310-1480 |
1490-1660 |
1490-1660 |
8.5 |
1110 - 1280 |
1290-1460 |
1290-1460 |
1470-1630 |
1470-1630 |
9 |
1090 - 1260 |
1270 - 1440 |
1270-1440 |
1450-1610 |
1450-1610 |
9.5 |
1070 - 1250 |
1260 - 1420 |
1260-1420 |
1430-1590 |
1430-1590 |
10 |
1060 - 1230 |
1240 - 1400 |
1240-1400 |
1410-1570 |
1410-1570 |
10.5 |
|
1220-1380 |
1220-1380 |
1390-1550 |
1390-1550 |
11 |
|
1210-1370 |
1210-1370 |
1380-1530 |
1380-1530 |
12 |
|
1180-1340 |
1180-1340 |
1350-1500 |
1350-1500 |
12.5 |
|
1170-1320 |
1170-1320 |
1330-1480 |
1330-1480 |
13 |
|
1160-1310 |
1160-1310 |
1320-1470 |
1320-1470 |
14 |
|
1130-1280 |
1130-1280 |
1290-1440 |
1290-1440 |
|
|
| IS 4454-Part 1-1981 |
Size |
Grade I |
Grade II |
Grade III |
Grade IV |
Tol mm |
UTS
Kg/mm2 (min) |
Tol. mm |
UTS
Kg/mm2 (min) |
Tol. mm |
UTS
Kg/mm2 (min) |
Tol. mm |
UTS
Kg/mm2 (min) |
0.63 |
±0.025 |
167 |
±0.02 |
20200.00% |
±0.01 |
238 |
±0.01 |
259 |
0.65 |
±0.025 |
167 |
±0.02 |
202 |
±0.01 |
238 |
±0.01 |
258 |
0.7 |
±0.025 |
166 |
±0.02 |
20100.00% |
±0.01 |
237 |
±0.01 |
258 |
0.75 |
±0.025 |
165 |
±0.02 |
200 |
±0.01 |
235 |
±0.01 |
255 |
0.8 |
±0.025 |
164 |
±0.02 |
19900.00% |
±0.01 |
233 |
±0.01 |
253 |
0.85 |
±0.035 |
163 |
±0.03 |
197 |
±0.015 |
231 |
±0.015 |
251 |
0.9 |
±0.035 |
162 |
±0.03 |
196 |
±0.015 |
230 |
±0.015 |
249 |
0.95 |
±0.035 |
161 |
±0.03 |
195 |
±0.015 |
229 |
±0.015 |
247 |
1 |
±0.035 |
160 |
±0.03 |
194 |
±0.015 |
228 |
±0.015 |
245 |
1.05 |
±0.035 |
159 |
±0.03 |
193 |
±0.015 |
225 |
±0.015 |
243 |
1.1 |
±0.035 |
159 |
±0.03 |
192 |
±0.015 |
223 |
±0.015 |
242 |
1.2 |
±0.035 |
157 |
±0.03 |
190 |
±0.015 |
221 |
±0.015 |
239 |
1.25 |
±0.035 |
156 |
±0.03 |
189 |
±0.015 |
218 |
±0.015 |
237 |
1.3 |
±0.035 |
155 |
±0.03 |
188 |
±0.015 |
217 |
±0.015 |
235 |
1.4 |
±0.035 |
153 |
±0.03 |
186 |
±0.015 |
215 |
±0.015 |
234 |
1.5 |
±0.05 |
152 |
±0.04 |
184 |
±0.02 |
214 |
±0.02 |
231 |
1.6 |
±0.05 |
150 |
±0.04 |
182 |
±0.02 |
212 |
±0.02 |
229 |
1.7 |
±0.05 |
149 |
±0.04 |
180 |
±0.02 |
209 |
±0.02 |
226 |
1.8 |
±0.05 |
147 |
±0.04 |
178 |
±0.02 |
207 |
±0.02 |
224 |
1.9 |
±0.05 |
146 |
±0.04 |
176 |
±0.02 |
205 |
±0.02 |
222 |
2 |
±0.06 |
145 |
±0.05 |
175 |
±0.025 |
203 |
±0.025 |
220 |
2.1 |
±0.06 |
144 |
±0.05 |
173 |
±0.025 |
200 |
±0.025 |
217 |
2.25 |
±0.06 |
143 |
±0.05 |
171 |
±0.025 |
198 |
±0.025 |
214 |
2.4 |
±0.06 |
141 |
±0.05 |
169 |
±0.025 |
195 |
±0.025 |
211 |
2.5 |
±0.06 |
140 |
±0.05 |
167 |
±0.025 |
193 |
±0.025 |
209 |
2.6 |
±0.06 |
139 |
±0.05 |
165 |
±0.025 |
190 |
±0.025 |
207 |
2.8 |
±0.06 |
137 |
±0.05 |
163 |
±0.025 |
188 |
±0.025 |
204 |
3 |
±0.06 |
135 |
±0.05 |
160 |
±0.025 |
187 |
±0.025 |
202 |
3.2 |
±0.06 |
134 |
±0.05 |
158 |
±0.025 |
183 |
±0.025 |
200 |
3.4 |
±0.08 |
132 |
±0.07 |
156 |
±0.03 |
180 |
±0.03 |
196 |
3.6 |
±0.08 |
130 |
±0.07 |
154 |
±0.03 |
178 |
±0.03 |
193 |
3.8 |
±0.08 |
129 |
±0.07 |
152 |
±0.03 |
175 |
±0.03 |
190 |
4 |
±0.08 |
128 |
±0.07 |
151 |
±0.03 |
173 |
±0.03 |
188 |
4.25 |
±0.08 |
127 |
±0.07 |
149 |
±0.03 |
171 |
±0.03 |
186 |
4.5 |
±0.08 |
125 |
±0.07 |
147 |
±0.03 |
169 |
±0.03 |
184 |
4.75 |
±0.08 |
123 |
±0.07 |
145 |
±0.03 |
165 |
±0.03 |
181 |
5 |
±0.08 |
121 |
±0.07 |
142 |
±0.03 |
163 |
±0.03 |
178 |
5.3 |
±0.08 |
119 |
±0.07 |
140 |
±0.03 |
160 |
±0.03 |
175 |
5.6 |
±0.08 |
117 |
±0.07 |
138 |
±0.03 |
158 |
±0.03 |
172 |
6 |
±0.10 |
115 |
±0.08 |
135 |
±0.06 |
156 |
±0.06 |
170 |
6.3 |
±0.10 |
114 |
±0.08 |
134 |
±0.06 |
153 |
±0.06 |
167 |
6.5 |
±0.10 |
113 |
±0.08 |
132 |
±0.06 |
151 |
±0.06 |
165 |
7 |
±0.10 |
111 |
±0.08 |
129 |
±0.06 |
149 |
±0.06 |
164 |
7.5 |
±0.10 |
109 |
±0.08 |
127 |
±0.06 |
146 |
±0.06 |
160 |
8 |
±0.10 |
107 |
±0.08 |
124 |
±0.06 |
143 |
±0.06 |
157 |
8.5 |
±0.10 |
104 |
±0.08 |
122 |
±0.06 |
140 |
±0.06 |
153 |
9 |
±0.12 |
102 |
±0.10 |
120 |
±0.08 |
138 |
±0.08 |
151 |
9.5 |
±0.12 |
101 |
±0.10 |
117 |
±0.08 |
134 |
±0.08 |
|
10 |
±0.12 |
100 |
±0.10 |
115 |
±0.08 |
132 |
±0.08 |
|
10.5 |
- |
- |
±0.12 |
112 |
|
|
|
|
11 |
- |
- |
±0.12 |
110 |
|
|
|
|
12 |
- |
- |
±0.12 |
106 |
|
|
|
|
12.5 |
- |
- |
±0.12 |
105 |
|
|
|
|
13 |
- |
- |
±0.15 |
104 |
|
|
|
|
14 |
- |
- |
±0.15 |
101 |
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