Sri Balaji Steel Traders

Technical Specfication

Standard Width & thickness matrix:

TDC No Grade	AU03 D		AU02		TR15 O
Dimensional	Min	Max	Min	Max	Min	Max
Thickness Range(mm)	0.4	1.50	1.55	3.20	0.4	3.2
Width Range	1000	1540	1000	1540	1000	1540
Thickness Tolerance+/-(mm) Width Tolerance Min(-ve)mm Width Tolerance Min(+ve)mm*	0.5% of Center Line Thickness 0 12		0.5% of Center Line Thickness 0 12		0.5% of Center Line Thickness 0 12
Mode of forming	Drawing	Bending
Chemistry	Min	Max	Min	Max	Min	Max
%C	0.02	0.07	0.02	0.07	0.035	0.1
%Mn	0.18	0.4	0.10	0.25	0.20	0.6
%Si		0.04		0.03		0.10
%S		0.02		0.015		0.04
%P		0.025
N(ppm)		60		0.60
%Al	0.2		0.021	0.60
%B			0.0020
Mechanical Properties	Min	Max	Min	Max	Min	Max
YS(Mpa)	140	220	140	220	-	-
UTS(Mpa)	280		280
%EI	35		35
Hardness (HRB)		50		50	55	65
Bend	OK		OK		OK
ECV (mm)	9.1		9.1
Surface Characteristics	Min	Max	Min	Max	Min	Max
Ra	0.8	1.60	0.8	1.40	0.6	1.6
R.P.Oil Type	Yes		Yes		Yes
Shape	Min	Max	Min	Max	Min	Max
Waviness		10		10		10
Centre Buckle(mm)		8		8		8
Camber(mm)		1		1		1

Note:Specification listed above are subjected to change without notice *closer tolerance on mutual agreement

PN01

Tata Steel has introduced a dedicated variant for panel segment i,e.PN01 is essentially a drawing quality steel, intended specific for panel applications.

The typical chemistry and mechanical properties of PN01 is as follows.

Chemistry		Mechanical Properties
C	0.02%-0.06%(max)	HRB	55(Max)
Mn	0.1-0.25%	YS(MPa0	270(Max)
S	0.015%(max)	UTS(MPa)	270-410(Max)
P	0.025&(Max)	%EI	30(Min)
Si	0.03(Max)	n-value	NA
Al	0.021-0.06%(Max)	r-bar	NA
N	60PPM(Max)	Roughness	0.8-1.2Micron