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IS 2062:2006 E300 Steel: Specifications & Listings

IS 2062:2006 E300: E300 is grade E 300 in IS 2062:2006 (Hot Rolled Low, Medium and High Tensile Structural Steel), which covers plates, strips, shapes, sections, flats and bars for structural work. Old designation Fe 440. This is the edition as first published in October 2006, before Amendment No. 1 (March 2009); impact test temperature is subject to agreement.

Category: Structural Steel
Grade Details
GradeIS 2062:2006 E300
Standard IS 2062:2006
ApplicationsStructural work: welded, bolted and riveted structures and general engineering purposes
Grade ComparisonCompare With a Specific Grade →
Grade Standard Match
IS 2062 E300A IS 2062:2009 Strong Match
IS 2062 E300BR IS 2062:2009 Strong Match
IS 2062 E300B0 IS 2062:2009 Strong Match
IS 2062 E300C IS 2062:2009 Strong Match
IS 2062 E300A IS 2062:2011 Strong Match
IS 2062 E300BR IS 2062:2011 Strong Match
IS 2062 E300B0 IS 2062:2011 Strong Match
IS 2062 E300C IS 2062:2011 Strong Match
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Chemical Composition (%)
C Mn S P Si CEV
<=0.20 <=1.30 <=0.045 <=0.045 <=0.45 <=0.40
Mechanical Properties
Tensile Strength >=440 MPa
Yield Strength 300 MPa (<20mm) / 290 MPa (20-40mm) / 280 MPa (>40mm)
Elongation >=22%
Impact Energy >=50 J at room temperature (25 +/- 2°C) / >=30 J at -20°C

More data from IS 2062:2006

From the standard
Yield stress by thickness 3 thickness ranges
Thickness (mm)Yield stress ReH, min (MPa)
Under 20300
20 to 40290
Over 40280
Source: IS 2062:2006 as first published, Table 2
Bend test t is the thickness
Internal bend diameter, thickness up to 25 mm
2t
Internal bend diameter, thickness over 25 mm
3t
The table heading gives the bend diameter as a minimum. t is the thickness of the test piece.
Source: IS 2062:2006 as first published, Table 2
Impact test and deoxidation E 300
Old designation
Fe 440
Impact test
Required
Minimum Charpy impact energy at room temperature (25 +/- 2°C)
50 J
Minimum Charpy impact energy at -20°C
30 J
Mode of deoxidation
Semi-killed or killed
Source: IS 2062:2006 as first published, Tables 1 and 2
Other composition limits from the table notes
Nitrogen, maximum
0.012 percent (0.009 percent for micro-alloyed steel)
Micro-alloying elements (Nb, V, Ti, B), total maximum
0.25 percent
Copper-bearing quality
Cu 0.20 to 0.35 percent by agreement, suffix Cu (for example E 250 Cu); product analysis 0.17 to 0.38 percent
Carbon equivalent CE = C + Mn/6 + (Cr+Mo+V)/5 + (Ni+Cu)/15, from the ladle analysis.
Source: IS 2062:2006 as first published, Table 1 notes

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