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Classification Grades
Low Carbon Steel O, DQ, DDQ, EDDQ, D-Si Killed, SAE 1010, 1015, 1018 & 1020
Medium Carbon Steel C40, C45, C55, C60, ST52-3
High Carbon Steel C67, C70, C80
Alloy Steel 10B21, 15Cr3, 16MnCr5, SAE1541, SCM415, SCM435, 50CrV4, 58Crv4, SAE8620
High Strength Formable Steels S500MC, S550MC, S600MC, S700MC, SAPH440, SAPH590, Ferrite Bainite Steel

Low Carbon Steel

Grade %C %Mn %Si %S %P UTS YST Max % Elongation in 50mm G.L
SAE1006 0.08 Max 0.40 Max 0.35 Max 0.03 Max 0.03 Max 350 210 36
SAE1010 0.08 – 0.13 0.30 – 0.60 0.35 Max 0.03 Max 0.03 Max 370 240 32
SAE1018 0.14 – 0.20 0.60 – 0.90 0.35 Max 0.03 Max 0.03 Max 380 280 26
SAE1020 0.18 – 0.23 0.30 – 0.60 0.35 MAX 0.03 Max 0.03 Max 410 280 28

Medium Carbon High Carbon Steel

Grade %C %Mn %Si %S %P UTS %Elongation Spheroidisation
SAE1035 0.35 – 0.45 0.50 – 0.80 0.15 – 0.35 0.03 0.03 510 28 90
SAE1040 0.35 – 0.45 0.50 – 0.80 0.15 – 0.35 0.03 0.03 510 28 90
SAE1045 0.42 – 0.50 0.50 – 0.80 0.15 – 0.35 0.03 0.03 550 26 90
SAE1050 0.47 – 0.55 0.60 – 0.90 0.15 – 0.35 0.03 0.03 550 24 90
SAE1055 0.50 – 0.60 0.60 – 0.90 0.15 – 0.35 0.03 0.03 550 24 90
SAE1060 0.57 – 0.65 0.67 – 0.90 0.15 – 0.35 0.03 0.03 570 21 90
SAE1080 0.75 – 0.85 0.60 – 0.90 0.15 – 0.35 0.03 0.03 620 28 90

Alloy Steel

Grade %C %Mn %Si % S % P % Chrome % Moly % Nickel % Vanadium UTS Elongation % Spheroidisation
15Cr3 0.12 – 0.18 0.40 – 0.80 0.15 – 0.35 0.03 0.03 0.40 – 0.70 450 26 90
SAE 8620 0.18 – 0.23 0.60 – 0.90 0.15 – 0.35 0.03 0.03 0.90 – 1.20 0.15 – 0.30 0.25 Max 820 22 90
SCM 435 0.33 – 0.38 0.60 – 0.90 0.15 – 0.35 0.03 0.03 0.90 – 1.20 0.15 – 0.30 0.25 Max 580 18 90
50CrV4 0.47 – 0.55 0.70 – 1.00 0.15 – 0.35 0.03 0.03 0.90 – 1.20 0.10 – 0.20 750 18 90
58CrV4 0.47 – 0.55 0.70 – 1.00 0.15 – 0.35 0.03 0.03 0.90 – 1.20 0.10 – 0.20 800 16 90
16MnCr5 0.14 – 0.19 1.00 – 1.30 0.15 – 0.35 0.03 0.03 0.80 – 1.10 470 28 90

Tolerance Over Width (+/-) mm

Thickness Width Slit Edge
Upto 160 161 to 250 251 to 400 401 to 500 501 to 1000
Up to 160 0.13 0.13 0.25 0.3 1.00
0.61 to 1.00 0.13 0.13 0.25 0.3 1.00
1.01 to 1.60 0.15 0.2 0.3 0.4 1.50
1.61 to 2.50 0.25 0.25 0.4 0.5 2.00
2.51 to 4.00 0.4 0.4 0.45 0.5 2.50

Tolerance on thickness(+/-)mm

Thickness Width
0.35 to 0.60 0.025
0.61 to 1.00 0.030
1.01 to 2.00 0.040
2.01 to 3.00 0.050
3.01 to 4.00 0.060
4.01 to 5.00 0.070
5.01 to 6.00 0.080

Coil Weight

Carbon & Alloy Steel 3.5 to 8 Kg/mm width smaller coils on mutual agreement
Coil Inner Diameter 508 mm
Coil Outer Diameter 1000/1150/1310 mm

Any special requirement on tolerance can be mutually agreed.

Others

Length Tolerance +5 -0mm
Surface Finish Bright / Matt
Packing Hessian Wooden Metallic Pallet