Black Square Steel Tube

Black Square Steel Tube is a square box of steel made from hot-rolled steel sheets. This steel has a blue-black surface, in addition to black box steel, there are also galvanized steel boxes on the market with similar specifications.

Advantages

Enduring with time

High quality

Bearing good

Cost saving

Eco-friendly materials

Policy

Construction warranty

Precision machining

Safe transport

Specifications	Thickness (mm)
(mm)	0.7	0.8	0.9	1	1.1	1.2	1.4	1.5	1.6	1.8	2	2.5	2.8	3	3.2	3.5
12×12	0.25	0.29	0.32	0.35	0.39	0.42	0.48
14×14	0.3	0.34	0.38	0.42	0.45	0.49	0.57	0.6
16×16	0.34	0.39	0.43	0.48	0.52	0.57	0.66	0.7
18×18	0.38	0.44	0.49	0.54	0.59	0.64	0.74	0.79
20×20	0.43	0.49	0.55	0.6	0.66	0.72	0.83	0.89
25×25		0.61	0.69	0.76	0.83	0.91	1.05	1.12
30×30			0.83	0.92	1	1.1	1.27	1.36	1.44	1.62	1.79	2.2
38×38				1.17	1.29	1.4	1.62	1.73	1.85	2.07	2.29
40×40				1.23	1.35	1.47	1.71	1.83	1.95	2.18	2.41	2.99
50×50						1.85	2.15	2.23	2.45	2.75	3.04	3.77	4.2	4.49
60×60						2.23	2.59	2.77	2.95	3.31	3.67	4.56	5.08	5.43
75×75							3.25	3.48	370	4.16	4.61	5.73	6.4	6.84	7.28	7.94
90×90							3.91	4.18	4.46	5.01	5.55	6.91	7.72	8.26	8.79	9.59

Other products

Galvanized Steel Rectangular Tube

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Black Steel Rectangular Tube

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Galvanized Steel Square Tube

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