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| SPECIFICATION OF CRCA MATERIAL |
| Grade (As per IS: 513) |
Low Carbon |
O, D, DD, EDD, HROP and HROPSP |
Medium Carbon |
MC-11, MC-12 & HC-14 |
Hardness |
Quarter-Hard, Half-Hard and Full-Hard |
Thickness |
0.40 mm to 3.00 mm for CRCA
1.60 mm to 3.90 mm for HROP/HROPSP |
Width |
20 mm to 1020 mm for Coil form
100 mm |
Length |
1000 mm to 2900 mm |
Edge Condition |
Trimmed & Mill Edge as required |
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| Chemical Composition (% Max) |
Mechanical Properties |
Grade |
C |
Mn |
S |
P |
Tensile Strength (Kg/mm 2) |
Elog(%) Min |
Hardness HV Max |
O |
0.150 |
0.600 |
0.055 |
0.055 |
- |
- |
- |
D |
0.120 |
0.500 |
0.040 |
0.040 |
28-42 |
28 |
125 |
DD |
0.100 |
0.450 |
0.035 |
0.035 |
28-38 |
32 |
110 |
EDD |
0.080 |
0.400 |
0.030 |
0.030 |
28-36 |
36 |
105 |
NA EDD |
0.080 |
0.400 |
0.030 |
0.025 |
29 Min |
36 |
95 |
MC-11 |
0.450 |
0.700 |
0.040 |
0.040 |
-- |
- |
220 |
MC-12 |
0.600 |
0.800 |
0.040 |
0.040 |
-- |
- |
300 |
HC-14 |
0.800 |
0.800 |
0.040 |
0.040 |
-- |
- |
350 |
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Remarks: ECV & Bend Test as per standard varies against thickness; NA – Non-Ageing.
Temper Range for Low Carbon Steel (in VPN)
Hardness |
Minimum |
Maximum |
Full-Hard |
165 |
200 |
Half-Hard |
135 |
165 |
Quarter-Hard |
110 |
135 |
Skin Pass |
100 |
117 |
Annealed |
90 |
110 |
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| Specification of CRFH Coil |
Hardness |
Full-Hard (VPN 165 min) |
Thickness |
0.14 mm to 1.00 mm |
Width |
600 mm to 1000 mm |
Length |
1000 mm to 1800 mm |
Edge Condition |
Trimmed or Mill Edge, as required. |
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| TESTING FACILITIES |
Hardness, Bend Test, Cupping Value, UTS/YS, Gauge, Width, Elongation & Chemical Composition. |
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| Applications |
Auto Components |
All types of vehicles (Two/ Four/ Heavy) components, Steel components, Body etc. |
Cycle Components |
Rim/ Mudguard/ Chain Wheel/ Chain/ Hubs etc. |
| White goods Components |
Washing Machines, Refrigerator, AC etc. |
| Stampings |
Electric motor stampings. |
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