Welcome to Tata Wiron :: Products :: Auto

Profile

TATA Wiron Spring Wire finds application as tension and compression springs in two wheeler, four wheeler and general engineering industry for applications ranging from Shock Absorbers to Clutch Brake Springs, to Mattress Spring etc.

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 tolerancies

Manufacturing Process

Certifications

One of the first Steel Wire Company in India to get ISO 9002:1984 certification
TS 16949 QS 9000 ISO 9001:2000 EMS 14001:1996

Standards

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

Test Procedure

Attributes Tested Size, Breaking load, Tensile strength, Elongation, Bends, Yield Strength, Modulus of Elasticity and any other customer specific requirements
Quality Report Each shipment is accompanied by a certified Mill Test Certificate.

IS 4454 2001 Standard

Nominal Diameter(mm)	Tensile Strength (Mpa)
Nominal Diameter(mm)	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
Size	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

Best viewed with IE 6.0 at 800 x 600 resolution