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Product Specifications
Properties/Composition India (IS: 1786) ATLAS TMT American (ASTM A 615) Euro (DIN 488)
Mechanical Properties Grade Fe - 415 Grade Fe-415-A Grade 40 (300) BSt 420 - S
Proof Stress (Min.) 415 N/mm2 430 N/mm2 300 MPa 420 MPa
Tensile Strength (Min.) 485 N/mm2 500 N/mm2 500 MPa 500 MPa
Elongation (Min.) 14.50% 20%  12% 10%
Bend Test (Min.) Upto 22 mm-3D Upto 22 mm-2D 10 to 16 mm-3.5D
upto 20 mm-5-D		 6 To 12 mm-5D
14 To 16 mm-6D
20 To 28 mm-8D
 
Chemical Composition (%)
Carbon 0.30 Max. 0.30 Max. 0.24-0.33 % 0.22 Max.
Sulphur 0.06 Max. 0.06 Max. 0.05 Max. 0.05 Max.
Phosphorus 0.06 Max. 0.06 Max. 0.06 Max. 0.05 Max.
S+P 0.11 Max. 0.11 Max. 0.12 Max. 0.12 Max.

 
Properties/Composition India (IS: 1786) ATLAS TMT American (ASTM A 615) Euro (DIN 488)
Mechanical Properties Grade Fe - 500 Grade Fe-500-A Grade 60 (420) Bst 500-s
Proof Stress (Min.) 500 N/mm2 520 N/mm2 420 MPa 500 MPa
Tensile Strength (Min.) 545 N/mm2 590 N/mm2 620 MPa 550 MPa
Elongation (Min.) 12% 18% 9% 10%
Bend Test (Min.) Upto 22 mm-4D Upto 22 mm-3D 10 to 16 mm-3.5D
20 mm to 25mm-5D
28 mm to 32mm-7D		 6 To 12 mm-5D
14 To 16 mm-6D
20 To 28 mm-8D
 
Chemical Composition (%)
Carbon 0.30 Max 0.17-0.24% 0.30-0.40% 0.22 Min.
Sulphur 0.06 Max. 0.05 Max. 0.05 Max. 0.05 Min.
Phosphorus 0.06 Max. 0.05 Max. 0.05 Max. 0.05 Min.
S+P 0.11 Max. 0.095 Max. 0.12Max. 0.12 Min.
Mn. - 0.5 Min. 0.06 Max. -
Si. - 0.4 Max. 1.30-1.60 Max. -
 

 
Properties/Composition India (IS: 1786) ATLAS TMT American (ASTM A 615) Euro (DIN 488)
Mechanical Properties Grade Fe - 550 Grade Fe-550-A Grade 75 (520) Bst 500-M
Proof Stress (Min.) 550 N/mm2 575 N/mm2 520 MPa 500 MPa
Tensile Strength (Min.) 585 N/mm2 650 N/mm2 690 MPa 550 MPa
Elongation (Min.) 8% 14% 7% 8%
Bend Test Upto 22 mm-5D Upto 22 mm-4D 6 to 25 mm-5D
above 25 mm-7D		 6D
 
Chemical Composition (%)
Carbon 0.30 Max. 0.17-0.24 0.30-0.40 Max. 0.015 Min.
Sulphur 0.06 Max. 0.045 Max. 0.05 Max. 0.050 Min.
Phosphorus 0.06 Max. 0.045 Max. 0.05 Max. 0.050 Min.
S+P 0.11 Max. 0.090 Max. 0.12 Max. 0.12 Min.
Mn. - 0.5 Min. 1.30-1.60 Max. -
Si. - 0.4 Max. 1.30-1.60 Max. -

Chemical Properties

Constituent Unit IS:1786 Tolerance as Per ISI
Carbon % max 0.30 * (+) 0.020%
Sulphur % max 0.06 (+) 0.005%
Phosphorus % max 0.06 (+) 0.005%
S+P % max 0.11 (+) 0.010%

Mechanical Properties

Particulars Grade Fe 415           Grade Fe 500           Grade Fe 550            
IS 1786 ATLAS TMT IS 1786 ATLAS TMT IS 1786 ATLAS TMT
Proof Stress 415 N/mm2 430 N/mm2 500 N/mm2 520 N/mm2 550 N/mm2 575 N/mm2
Tensile Strength 485 N/mm2 500 N/mm2 545 N/mm2 590 N/mm2 585 N/mm2 650 N/mm2
Elongation 14.50% 20% 12% 18% 8% 14%
Bend Test Up to 22mm 3D
Over 22mm 4D 		Up to 22mm 3D
Over 22mm 4D		 Up to 22mm 4D
Over 22mm 5D		 Up to 22mm 4D
Over 22mm 5D		 Up to 22mm 5D
Over 22mm 6D		 Up to 22mm 5D
Over 22mm 6D
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