Shape and dimensional tolerances

Tolerances on thickness

Tata Steel can supply to full thickness tolerance specified in ASTM A568: 2015 / A635: 2015.
Thickness tolerances over, no tolerance under. Tighter tolerances are available as shown below:

Carbon Steel	Thickness tolerances available
	ASTM A 568 (2015) / A635 (2015)
	20 - 40	40 - 48	48 - 60	60 - 72	>72
0.031 - 0.051	0.01	0.01	0.01	0.01	0.01
0.051 - 0.057	0.01	0.012	0.012	0.014	0.014
0.057 - 0.071	0.012	0.012	0.014	0.014	0.014
0.071 - 0.098	0.014	0.014	0.014	0.016	0.016
0.098 - 0.179	0.014	0.016	0.016	0.016	0.016
0.179 - 0.229	0.016	0.018	0.02	0.022	0.024
0.229 - 0.313	0.022	0.024	0.024	0.026	0.03
0.313 - 0.375	0.024	0.026	0.028	0.03	0.032
0.375 - 0.500	0.028	0.028	0.03	0.032	0.036
0.500 - 0.625	0.03	0.03	0.032	0.036	0.038
0.625 - 1.000	0.032	0.032	0.034	0.038	0.04

HSLA	Thickness tolerances available
	ASTM A568 (2007) / A635 (2007)
	20 - 32	32 - 40	40 - 48	48 - 60	60 - 72	72 - 80	> 80
0.031 - 0.051	0.012	0.012	0.012	0.012	0.012	0.012	0.012
0.051 - 0.059	0.012	0.012	0.014	0.014	0.014	0.014	0.014
0.059 - 0.070	0.014	0.014	0.014	0.014	0.016	0.016	0.016
0.070 - 0.082	0.014	0.014	0.014	0.014	0.016	0.016	0.016
0.082 - 0.098	0.014	0.016	0.116	0.016	0.018	0.018	0.02
0.098 - 0.179	0.016	0.016	0.02	0.02	0.022	0.024	0.024
0.179 - 0.229	0.018	0.018	0.02	0.02	0.022	0.024	0.024
0.229 - 0.313	0.022	0.022	0.024	0.024	0.026	0.03	0.03
0.313 - 0.375	0.024	0.024	0.026	0.028	0.03	0.032	0.032
0.375 - 0.500	0.028	0.028	0.028	0.03	0.032	0.036	0.036
0.500 - 0.625	0.03	0.03	0.03	0.032	0.036	0.038	0.038
0.625 - 1.000	0.032	0.032	0.032	0.034	0.038	0.04	0.04

Option for maximum crown values

At the time of ordering, specific agreements can be made on the crown of hot-rolled strip.

Tolerances on width, edge camber and flatness

Material will be supplied conforming to the tolerances specified in ASTM A568 (2007) / A635 (2007).
Width tolerances are over, no tolerance under.

Width tolerances available
Carbon steel	ASTM A568: 2015 / A635: 2015
Carbon steel	Mill edge	Cut edge
24 - 26	0.812	0.125
26 - 28	0.937	0.125
28 - 30	0.937	0.125
30 - 35	1.125	0.187
35 - 48	1.125	0.187
48 - 50	1.125	0.25
50 - 60	1.5	0.25
60 - 65	1.5	0.312
65 - 70	1.5	0.312
70 - 78	1.5	0.312
78 - 80	1.875	0.312
80 - 82	1.875	0.375

Width tolerances available
HSLA	ASTM A568: 2007 / A635: 2007
HSLA	Mill edge	Cut edge
24 - 26	0.812	0.125
26 - 28	0.937	0.125
28 - 30	1.125	0.125
30 - 35	1.125	0.187
35 - 48	1.25	0.187
48 - 50	1.25	0.25
50 - 60	1.5	0.25
60 - 65	1.625	0.312
65 - 70	1.75	0.312
70 - 78	1.875	0.312
78 - 80	2	0.375
80 - 82	1.875	0.375

Dimensions and coil weights

Tata Steel can supply hot-rolled steels with the following minimum and maximum dimensions and weights.

Description	Capability
Coil diameter inner non-pickled	30 inch
Coil diameter inner pickled	24 inch standard
Coil diameter inner pickled	30 inch on request
Tolerance on inner diameter	+0/-2 inch
Coil diameter outer non-pickled	Outer diameter available is 10/7 x width to reduce possibility of coil tipping over
	Max. 86 inch
	Min. 41.5 inch
Coil diameter outer pickled and oiled	Outer diameter available is 10/7 x width to reduce possibility of coil tipping over
	Max. 86 inch
	Min. 65 inch
Coil weight	Max. 75,000 lbs
	Maximum coil weight limits can vary due to
	transport limits and outer coil diameter
	Some HR products may have different coil weight ranges
PIW width ≤ 47 inch	868 - 1288 PIW width
PIW 47 inch < width ≤ 67 inch	868 - 1215 PIW width
PIW width > 67 inch	616 PIW width and 868 - 1215 PIW width
Minimum tonnage per order	Refer to price list for order quantity details
Minimum tonnage per order	Minimum order quantities may apply