DSP-Structurals

SAIL:- Steel Authority of India

DSP : Structurals

Rationalised sizes of Beams/ Joists, Channels and Angles

Section	Dimensions mm	Sectional Weight kg/m	Length m
Beams/ Joists	175 x 85 x 5.8	19.6	10 to 11.5
Beams/ Joists	200 x 100 x 5.7	25.4	10 to 11.5
Channels	125 x 65 x 5.3	13.10	10 - 11.5 for all dimensions
	125 x 66 x 6	13.70
	150 x 75 x 5.7	16.80
	150 x 76 x 6.5	17.70
	175 x 75 x 6	19.60
	200 x 75 x 6.2	22.30
	200 x 76 x 7.5	24.30
Angles	100 x 100 x 10/12	14.9/17.7	10 - 11.5 for all dimensions
	110 x 110 x 10/12	16.6/19.7
	130 x 130 x 10/12	19.7/23.5
	150 x 150 x 12/16	22.9/27.3

While standard lengths are mentioned in the table above, DSP can supply material in any fixed length in the range 5.5-11.5 m.

Common Grades: IS 2062/1999 and SAILMA

Copper bearing structurals are also rolled as per customer's specifications. High strength quality light structurals as per the needs of TLT manufacturers also available.

For Specifications click here

Structurals are also available in the following foreign specifications: ASTM-A-36, JIS-G-3101-SS400, BS-4360 Grades 40A, 43A, 43B, 43C, 50B, 50C, EN-10025, Grades S-275 JO, JR, S-355 JO, JR, DIN-17100 ST 37.2/44.2 (all in semi-killed quality), if sufficient orders are available.

Rolling tolerance for Structural Steel sections as per IS1852/ 1985.

Beams

Depth mm	Tolerance	Width of flange	Tolerance
Up to 200	+ 3.0, - 2.0	Up to 100 mm	± 2.0
>200 to 400	± 3.0	>100 to 125 mm	± 2.5
> 400 to 600	± 4.0	>125 to 250 mm	± 4.0
Tolerance on weight per metre shall be ± 2.5% of the weight per metre. The permissible limits for camber and sweep shall be 0.2% of the length.

Channels

Depth mm	Tolerance	Width of flange	Tolerance
Up to 200	± 2.5	Up to 100 mm	± 2 mm
> 200 to 400	± 3.0
Tolerance on weight per metre shall be ± 2.5% of the weight per metre. The permissible limits for camber and sweep shall be 0.2% of the length.

Angles

Length mm	Tolerance	Leg length	Camber
Up to 45	± 1.5 mm	< 100 mm	As per agreement
>45 to 100	± 2.0 mm	£ 100 mm	2% of length
>100	± 2%

Tolerance on Weight

Thickness	Tolerance
Up to 3 mm	± 5%
Over 3 mm	+ 5%, -3%

Structurals with closer tolerance can be supplied by mutual agreement.
At DSP's Section Mill 100% products are straightened.