Tianjin Brisk Metalwork Co., Ltd. is one of the leading manufacturers and suppliers of erw square box section in China. We have world-leading production equipment and strong manufacturing capabilities. Please feel free to buy bulk durable erw square box section from our factory.

TIANJIN BRISK METALWORK CO.,LTD is a top Hollow Sections manufacturer and Supplier, who use high-quality raw materials, in strict accordance with international standards of the production process can ensure that products have excellent performance and stability.

process

Top hollow sections manufacturer and suppliers has perfect production equipment and production lines, mostly using a variety of production technologies such as ERW, LSAW, SEAMLESS, etc., to manufacture various specifications of hollow section steel.

SSAW
Electric welding
Nondestructive Testing
Molding

Product Sizes

square hollow section	wall thickness
mm	mm
2020 2525 30*30	1.3-3.0
4040 5050 70*70	1.3-6.0
60*60	1.3-6.0
80*80	1.3-8.0
90*90	1.5-9.0
100*100	1.5-10.0
120120 150150	2.5-10.0
140140 160160 180*180	3.0-12.0
200*200	3.5-12.0
250*250	4.5-16.0
280280 350350	4.5-16.0
300*300	4.5-16.0
400400 500500	4.5-16.0

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EN 10219 HOLLOW SECTION

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Black Square Box Section Hot-dip Galvanized Square Box Section

Products Standard

Specifications		chemical compision(%)						Physical properties
		C≤	Si≤	Mn≤	P≤	S≤	Others	Min Tensile Strength(psi)		Min Yield Strength (psi)		Elongation(Min)%
								＜3MM	≥3≤40MM	≤16MM	＞16≤40MM	Longitudinal	Transverse
EN 10219	S235JRH	0.17	-	1.40	0.045	0.045	0.009 N	360-510Mpa	340-470Mpa	235Mpa	225Mpa	24 ≤40MM	20
	S275J0H	0.20	-	1.50	0.040	0.040	0.009 N	430-580Mpa	410-560Mpa	275Mpa	265Mpa	20 ≤40MM	0
	S275J2H	0.20	-	1.50	0.035	0.035							20
	S355J0H	0.20	0.55	1.60	0.040	0.040	0.009 N	510-680Mpa	490-630Mpa	355Mpa	345Mpa	20 ≤40MM
	S355J2H	0.20	0.55	1.60	0.035	0.035							20
ASTM A500	A	0.30		1.40	0.045	0.045	Cu≥0.20	310Mpa		269Mpa		25
	B	0.30		1.40	0.045	0.045		400Mpa		317Mpa		23
	C	0.27		1.40	0.045	0.045		427Mpa		345Mpa		21
	D	0.30		1.40	0.045	0.045		400Mpa		250Mpa		23

Applicant Field

ERW Square Box Section for product use

01/

Architecture and Structural Engineering

This is one of the main application areas for ERW Square Box Section.Main structure of steel buildings: used for constructing the main frames, columns, and beams of large public and industrial buildings such as factories, warehouses, exhibition halls, sports venues, airport terminals, and high-speed railway stations.

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02/

Mechanical Manufacturing and Equipment Field
ERW Square Box Sections are ideal materials for manufacturing various machinery and components due to their excellent mechanical properties and machinability.

General machinery: used for manufacturing machine tool beds, bases, brackets, as well as housings and frames for various transmission devices.

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03/

Transportation and Logistics Sector
Container Manufacturing: The main frame structures of standard shipping containers are almost entirely welded from square and rectangular tubes.
Racking Systems: The columns and beams used to manufacture large warehouse racks are preferred for their strong load-bearing capacity and structural stability.

04/

Agriculture and Infrastructure
Agricultural Facilities: Used for constructing the framework of greenhouses and supporting pipes for irrigation systems.
Fences and Railings: Used for making fences and railings for farms, ranches, industrial parks, and residential communities.

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