Cold Rolled Low Carbon (Mild) Steel Characteristics
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| Designation |
Corresponding former British Grades |
Chemical Composition (cast analysis) weight % maximum | Mechanical Properties | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Material number | Name | BS 1449-1 1983 | C | P | S | Mn | Ti | Period Guaranteed | Delivery Condition | Symbol | Re N/mm2 | Rm N/mm2 | Elongation % min A80 | Hardness HV | |
| 1.0330 | DC01 | CS4 | 0.12 | 0.045 | 0.045 | 0.60 | 3 months | Annealed | A | - | 270-390 | 28 | 105 max | ||
| Skin passed | LC | 280 max | 270-410 | 28 | 115 max | ||||||||||
| Work hardened | C290 | 200-380 | 290-430 | 18 | 95-125 | ||||||||||
| C340 | 250 min | 340-490 | - | 105-155 | |||||||||||
| C390 | 310 min | 390-540 | - | 117-172 | |||||||||||
| C440 | 360 min | 440-590 | - | 135-185 | |||||||||||
| C490 | 420 min | 490-640 | - | 155-200 | |||||||||||
| C590 | 520 min | 590-740 | - | 185-225 | |||||||||||
| C690 | 630 min | 690 min | - | 215 min | |||||||||||
| 1.0347 | DC03 | CS3, CS2 | 0.10 | 0.035 | 0.035 | 0.45 | 6 months | Annealed | A | - | 270-370 | 34 | 100 max | ||
| Skin passed | LC | 240 max | 270-370 | 34 | 110 max | ||||||||||
| Work hardened | C290 | 210-355 | 290-390 | 22 | 95-117 | ||||||||||
| C340 | 240 min | 340-440 | - | 105-130 | |||||||||||
| C390 | 330 min | 390-490 | - | 117-155 | |||||||||||
| C440 | 380 min | 440-540 | - | 135-172 | |||||||||||
| C490 | 440 min | 490-590 | - | 155-185 | |||||||||||
| C590 | 540 min | 590 min | - | 185 min | |||||||||||
