U shaped steel

STT	Product Type	Length	Standard	Unit mass (kg/m)	Prices(đ/kg)
1	U 80 x 36 x 4.0	6m-12m	SS400/Q235/SS540	7.05	18.400-19.400
2	U 100 x 46 x 4.5	6m-12m	SS400/Q235/SS540	8.59	18.400-19.400
3	U 100 x 50 x 5	6m-12m	SS400/Q235/SS540	9.36	18.400-19.400
4	U 140 x 58 x 4.9	6m-12m	SS400/Q235/SS540	12.3	18.400-19.400
5	U 120 x 52 x 4.8	6m-12m	SS400/Q235/SS540	10.4	18.400-19.400
6	U 125 x 65 x 6	6m-12m	SS400/Q235/SS540	6.92	19.200-20.200
7	U 150 x 75 x 6.5	6m-12m	SS400/Q235/SS540	19.35	18.400-19.400
8	U 160 x 64 x 5	6m-12m	SS400/Q235/SS540	14.5	18.400-19.400
9	U 180 x 74 x 5.1	6m-12m	SS400/Q235/SS540	17.4	18.400-19.400
10	U 200 x 76 x 5.2	6m-12m	SS400/Q235/SS540	18.4	18.400-19.400
11	U 200 x 78 x 9	6m-12m	SS400/Q235/SS540	24.6	21.200-22.200
12	U 200 x 80 x 7.5 x 11	6m-12m	SS400/Q235/SS540	24.6	21.200-22.200
13	U 200 x 90 x 8 x 13.5	6m-12m	SS400/Q235/SS540	30.3	21.200-22.200
14	U 250 x 78 x 7.0	6m-12m	SS400/Q235/SS540	27.5	21.200-22.200
15	U 250 x 90 x 9 x 13	6m-12m	SS400/Q235/SS540	34.6	21.200-22.200
16	U 300 x 85 x 7.0	6m-12m	SS400/Q235/SS540	34.5	21.200-22.200
17	U 300 x 87 x 9.5	6m-12m	SS400/Q235/SS540	39.2	21.200-22.200
18	U 300 x 90 x 9 x 13	6m-12m	SS400/Q235/SS540	38.1	21.200-22.200
19	U 380 x 100 x 10.5 x 16	6m-12m	SS400/Q235/SS540	54.5	21.200-22.200
20	U 400 x 100 x 10.5	6m-12m	SS400/Q235/SS540	59	21.200-22.200

Standard size (mm)					Cross-sectional area (cm2)	Unit (kg/m)	Central coordinates (cm)		Moment of inertia (cm4)		Radius of inertia (cm)		Sectional flexural modulus (cm3)
HxB	t1	t2	r1	r2	A	W	Cx	Cy	Ix	Iy	ix	iy	Zx	Zy
C75x40	5	7	8	4	8.818	6.92	0	1.28	75.3	12.2	2.92	1.17	20.1	4.47
C100x50	5	7.5	8	4	11.92	9.36	0	1.54	188	26	3.97	1.48	37.6	7.52
C125x65	6	8	8	4	17.11	13.4	0	1.9	424	61.8	4.98	1.90	67.8	13.4
C150x75	6.5	10	10	5	23.71	18.6	0	2.28	861	117	6.03	2.22	115	22.4
C200x80	7.5	11	12	6	31.33	24.6	0	2.21	1,950	168	7.88	2.32	195	29.1
C200x90	8	13.5	14	7	38.65	30.3	0	2.74	2,490	277	8.02	2.68	249	44.2
C250x90	9	13	14	7	44.07	34.6	0	2.40	4,180	294	9.74	2.58	334	44.5
C300x90	9	13	14	7	48.57	38.1	0	2.22	6,440	309	11.5	2.52	429	45.7
C380x100	10.5	16	18	9	69.69	54.5	0	2.41	14,500	535	14.5	2.78	763	70.5
C380x100	13	20	24	12	85.71	67.3	0	2.54	17,600	655	14.3	2.76	926	87.8

Steel grade	Yield limit δ c (MPa) ≥ (1) (2)			Tensile strength δ b (MPa)	Elongation ≥		Curved 108o r inside radius a length or diameter
	Thickness or diameter (mm)				Length or diameter (mm)	δ (%)
	≤ 16	> 16	> 40
SS330	205	195	175	330 ~430	Flat plate ≤ 5 > 5 ~ 16 16 ~ 50 > 40	26 21 26 28	r = 0.5a
	205	195	175	330 ~430	Bar, angle ≤ 25	25 30	r = 0.5a
SS400	245	235	215	400 ~510	Flat plate ≤ 5 > 5 ~ 16 16 ~ 50 > 40	21 17 21 23	r = 1.5a
					Bar, angle ≤ 25 > 25	20 24	r = 1.5a
SS490	280	275	255	490 ~605	Flat plate ≤ 5 > 5 ~ 16 16 ~ 50 > 40	19 15 19 21	r = 2.0a
					Bar, angle ≤ 25 > 25	18 21	r = 2.0a
SS540	400	390	-	540	Flat plate ≤ 5 > 5 ~ 16 16 ~ 50 > 40	16 13 17	r = 2.0a
	400	390	-	540	Bar, angle ≤ 25 > 25	13 17	r = 2.0a
(1) Thickness or diameter > 100mm, yield strength or yield strength SS330 is 165 MPa, SS400 is 245 MPa. (2) Steel thickness > 90mm, for every 25mm increase in thickness, elongation decreases by 1% but the maximum decrease is only up to 3%.

Grade	Old Grade	C (%)	Si (%)	Mn (%)	P (%) ≤	S (%) ≤	Terms and Conditions
Ordinary carbon steel [JIS G3101 (1981)]							Thick steel structure, mm ≤ 50 >50 ~ 200
SS330	S34	-	-	-	0.050	0.050
SS400	S41	-	-	-	0.050	0.050
SS490	SS50	-	-	-	0.050	0.050
SS540	SS55	≤ 0.30	-	1.60	0.040	0.040
Welded structural steel [JIS G3106 (1992)]
SM400A	SM41A	≤ 0.23 ≤ 0.25	- -	≥ 2.5 X C ≥ 2.5 X C	0.035 0.035	0.035 0.035
SM400B	SM 41B	≤ 0.20 ≤ 0.22	≤ 0.35 ≤ 0.35	0.60 ~ 1.00 0.60 ~ 1.00	0.035 0.035	0.035 0.035	≤ 50 >50 ~ 200
SM400C	SMC	≤ 0.18	≤ 0.35	≤ 1.4	0.035	0.035	≤ 100
SM490A	SM50A	≤ 0.20	≤ 0.55	≤ 1.60	0.035	0.035	≤ 50
SM490A	SM50A	≤ 0.22	≤ 0.55	≤ 1.60	0.035	0.035	> 50 ~ 200
SM490B	SM50B	≤ 0.18	≤ 0.55	≤ 1.60	0.035	0.035	≤ 50
		≤ 0.22	≤ 0.55	≤ 1.60	0.035	0.035	> 50 ~ 200
SM490C	SM50C	≤ 0.18	≤ 0.55	≤ 1.60	0.035	0.035	≤ 100
SM490YA	SM50YA	≤ 0.20	≤ 0.55	≤ 1.60	0.035	0.035	≤ 100
SM490YB	SM50YB	≤ 0.20	≤ 0.55	≤ 1.60	0.035	0.035	≤ 100
SM520B	SM53B	≤ 0.20	≤ 0.55	≤ 1.60	0.035	0.035	≤ 100
SM520C	SM53C	≤ 0.20	≤ 0.55	≤ 1.60	0.035	0.035	≤ 100
SM570(1)	SM58	≤ 0.18	≤ 0.55	≤ 1.60	0.035	0.035	≤ 100
*(1) Carbon content (Ce) of steel grade SM570, thickness ≤ 50mm is ≤ 0.44%, from 50 - 100mm ≤ 0.47%*