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Hot Rolled (HR)

Steel for general Structural Purpose
Standards Grade
IS-2062-2004 A
B
C
ASTM A36M A 36M
ASTM A516 M GR 55
GR 60
EN 10025 – 1994 235 JR/Jo
275 JR/ Jo
DIN 17100 – 1980 ST 44.3
ST 37.2
Steel for Flanging and Forming Application
Standards Grade
IS 5986 : 2002 Fe 330
Fe 360
Fe 410
Fe 510
Steel for Ship Building Application
Standards Grade
Indian Register of Shipping (IRS) IRS A
IRS B
IRS D
Dead Soft Quality
Standards Grade
PMP – J14 soft (near equivallent – SAIL DSQ)
Wear Resistance Quality
Standards Grade
PMP – J15 Hard (near equivallent – SAIL Hard)
Medium Carbon Steel
Standards Grade
SAE 1030
C-35
C-45
50C8
High Tensile grade
Standards Grade
IS 5986 : 2002 Fe 510
DIN 17100 – 1980 ST 52.3
ASTM A572 M
GR. 42
GR. 50
GR. 60
Steel for Line Pipe Application
Standards Grade
API 5L – 2000 GR. B PSL 1
GR. B PSL 2
LX-42 PS 1
LX-42 PSL 2
LX-46 PSL 1
LX-46 PSL 2
Steel pressure Vessel Application
Standards Grade
ASTM A516 M GR 55
GR 60
GR 65
GR 70
ASTM A285 M GR A
GR B
GR C

Hot Rolled Pickled & Oil (HRPO)

Hot Rolled Pickled & Oil (HRPO) Grade/specifications
Product type HRSPO HRPO
Grade IS 1079, D/DD/EDD – IS 1079, D/DD/EDD –
JIS G3101, FE 410- 5986 JIS G3101, FE 410
Surface Finish Matte : Roughness Ra=2.5 micron max Matte : Roughness Ra=2.5 micron max
Mechanical Properties EDD│D/DD│FE410 EDD│D/DD│FE410
Max Hardness(HRB) : 60 65 75 Max Hardness(HRB) : 60 65 75
Min Elongation %: 38 32 23 Min Elongation %: 38 32 23
Thickness 2.00 to 3.15mm 2.00 to 3.15mm

Cold Rolled and Close Annealed (CRCA) Grades and Specifications

Common Features:
Size :  Thickness (0.30mm to 3.15mm) Width(100mm to 1500mm) Length(200mm to 4000mm)
Surface Finish Matte (Roughness Ra=0.80 – 1.6 microns
Bright (roughness Ra 0.50 max)
Coil Wt: 1 to 20 mt
Packing: Metalic and non metalic, Sea worthy packing , pallet packing

Product type Drawing Quality Deep Drawing quality Extra Drawing Quality Structural Quality Medium Carbon Steel Cor-ten Steel
Grade IS 513,BS 1449, IS 513,BS 1449, IS 513,BS 1449, DIN 1623 MC 11 & MC 12 Weathering Steel
JIS G3141 JIS G3141 JIS G3141
DIN 1623 DIN 1623 DIN 1623
Bright Matte
Mechanical Properties Hardness = 110 HV / 62 HRB max Hardness = 95-110 HV /50-55 HRB max Hardness = 85 HV/41HRB max Hardness=121-150HV/68-90HRB
Elongation=28% min(80mm G.L.) Elongation=32% min(80mm G.L.) Elongation=42% min(80mm G.L.) Elongation=18% min(80mm G.L.) Tensile Strength 735 to 930 Mpa UTS – 480 mpa, YS – 345 Mpa min
Elongation 22% min (80mm G.L.)
Application General Engineering, White Goods & Home Appliance Cold Formed & Auto Components High Tensile Strength Applications Chain Links, Hair clips Weather resistance application
Electrical Panel, Drums & Barrels
Thickness 0.30mm to 3mm 0.30mm to 3mm 0.30mm to 3mm 0.30mm to 3mm 1.00 to 2.00 mm 0.60 to 1.00 mm

Cold Rolled and Close Annealed (CRCA) Specification: IS513 – 1994

Steel Grade Chemical Mechanical
C(max) Mn(max) P(max) S(max) Al(min) N(max) UTS YS %EL HRB
N/mm² N/mm² max’ 5.65/So min max
O 0.15 0.60 0.055 0.055 0.02 0.007
D 0.12 0.50 0.040 0.040 0.02 0.007 270-410 280 23 65
DD 0.10 0.45 0.035 0.035 0.02 0.007 270-370 250 26 57
EDD 0.08 0.40 0.030 0.030 0.02 0.007 270-350 220 32 50

Galvanized Plain (GP) Product Classification

Parameters Hard Soft Commercial Soft Drawing Soft Skinpass Structural grade
Grade 0.10-0.80mm 0.23 – 2.5mm 0.50 – 2mm 0.30 – 2.0mm 0.30-2.5mm
Surface quality Regular /Small/Big sprangles Regular /Small/Big sprangles Regular /Small/Big sprangles Supressed Regular/Small/Big/Sprangles/Supressed
Oiling 100-1000mg/m² Each side 100-1000mg/m² Each side 100-1000 mg/m² each side
non Stretch levelled Stretch levelled Stretch levelled Stretch levelled Stretch Levelled/ Skin pass
Non Stretch levelled Skin pass
Surface Roughness 0.60-2 microns 0.60 – 2 microns
Zinc Coating 80-275gsm 80-275gsm 80-275gsm 80-275gsm 80-275 gsm
LFQ Yes Yes Yes
Hardness Min 85HRB 55-65 HRB 50-65 HRB 55-65 HRB as per specification
Specs IS277, JIS 3316, JIS G3302 IS 277 JIS 3302,EN10142, IS277,JIS3302,SGCC,EN 10162 IS 277 JISG3302, SGCC, EN10142 JIS G 3302 SGC grades
SGCH, ES C.D7.026 Din 17162 ST02Z ASTM A 653CS, A,B,C St03Z,ASTM A653FS ,A, B, AS 1397 ASTMA 653CS A,B,C, SS grades EN 10142 grades, ASTM A 653 SS grades

Galvanized Plain (GP) Product Equivalent Grade/Specification

IS 277 – 2003 Chemical Composition (product analysis) Mechanical Properties
Grades C(max) Mn(max) P(max) S(max) Si(max) Al(min) Nitrogen(max) Y.S. Max Mpa T.S. Mpa El %(min) 5.65 √S0
Ordinary (O) 0.15 0.60 0.055 0.055 0.02 70 PPM
Drawing (D) 0.12 0.50 0.040 0.040 0.02 70 PPM 350 270-430 23
Deep drawing (DD) 0.10 0.45 0.035 0.035 0.02 70 PPM 310 270-400 26
Extra deep drawing (EDD) 0.08 0.40 0.030 0.030 0.02 70 PPM 280 270-370 32