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Hot-dip galvanized square pipes for building steel structures [100x100mm] [3.0mm], national standard Q235B, thick-walled and load-bearing

The Q235B steel grade is a cornerstone in the construction industry. Renowned for its excellent mechanical properties, Q235B steel offers a reliable yield strength, ensuring that the square pipes can withstand substantial loads and stresses. This makes them highly suitable for a wide range of building steel structure applications, from the skeletal frameworks of commercial buildings to the support systems of industrial facilities. The material’s good formability also allows for precise manufacturing, ensuring that each 100x100mm square pipe meets the strict dimensional requirements of modern construction projects.

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Galvanized steel pipe

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Hot-dip galvanized square pipes for building steel structures [100x100mm] [3.0mm], national standard Q235B, thick-walled and load-bearing

Product	galvanized square tube
Material	16Mn,Q345B,T1,T2,T5,T9,T11,T12,T22,T91,T92,P1,P2,P5,P9,P11,P12,P22,P91,P92,15CrMO,Cr5Mo,10CrMo910,12CrMo,13CrMo44,30CrMo,A333 GR.1,GR.3,GR.6,GR.7
	Gr.B,X42,X46,X52,X60,X65,X70,X80,
	ASTM A53A/A53B/ A178C/A106B API5L
	ST37,ST37-2,DIN 1629 ST35, ST45,DIN 17175 ST35.8,DIN 17175 19Mn5
Grade	Q195 = S195 / A53 Grade A
	Q235 = S235 / A53 Grade B / A500 Grade A / STK400 / SS400 / ST42.2
	Q345 = S355JR / A500 Grade B Grade C
	Q235, Q345, S235JR, S275JR, STK400, STK500, S355JR, GR.B-D
Standard	EN39, BS1139, BS1387, EN10255,ASTM A53, ASTM A500, A36, ASTM A795,ISO65, ANSI C80, DIN2440, JIS G3444,
Inspection	ISO,BV,SGS,MTC
MOQ	100/ton-1000ton According to customer requirements
Surface	Zinc coating 200-500g/m2 (30-70um)
Ends	Plain ends
Ends	with or without caps
payment method	L/C D/P D/A TT

1. 100% after-sales quality and quantity assurance. 22 years experience in manufacturing and exporting steel products since 2000.

2. Large Stock for regular sizes. 16 Consecutive Years of The First Production and Sales-- Over 1300,0000 Tons sales and production

3. Strong produce capability and capital flow.

4. Listed company in Shanghai Exchange Stock

5. Top 500 manufacturing of China

6. National 3A grade industrial park tourist attractions - Green and environment-friendly factory

Square And Rectangular Steel Pipe Application:

Construction / building materials steel pipe
Structure pipe
Fence post steel pipe
Solar mounting components
Handrail pipe

Square And Rectangular Steel Pipe Size Chart :

SIZE (OUTER DIAMETER)	WALL THICKNESS	LENGTH
20x20 / 25x25	1.2MM --2.75MM	6M IN STOCK (OR CUSTOMIZED 2-6.5m)
30x30 / 20x40 / 30x40 / 25x40	1.2MM -- 3.5MM	6M IN STOCK (OR CUSTOMIZED 2-6.5m)
40x40 / 50x50/30x50 / 25x50 / 30x60 / 40x60	1.2MM -- 4.75 MM	6M IN STOCK (OR CUSTOMIZED 2-6.5m)
60x60 / 50x70 / 40x80 / 40x50	1.2 MM -- 5.75 MM	6M IN STOCK (OR CUSTOMIZED 2-6.5m)
70x70 / 60x80 / 50x80 / 100x40 / 50x90	1.5MM -- 5.75 MM	6M IN STOCK (OR CUSTOMIZED 2-8m)
75x75 / 80x80 / 90x90 / 60x100 / 50x100 / 120x60 / 100x80 / 60x90	1.5MM -- 7.75 MM	6M IN STOCK (OR CUSTOMIZED 2-8m)
100x100 / 120x80	1.8MM -- 7.75 MM	6M IN STOCK (OR CUSTOMIZED 2-12m)
120x120 / 130x130 / 180x80 / 160x80 / 100x150 / 140x80 / 140x60	2.5MM -- 10.0 MM	6M IN STOCK (OR CUSTOMIZED 2-12m)
140x140 / 150x150 / 100x180 / 200x100	2.5MM -- 10.0 MM	6M IN STOCK (OR CUSTOMIZED 2-12m)
160x160 / 180x180 / 200x150	3.5MM -- 11.0 MM	6M IN STOCK (OR CUSTOMIZED 2-12m)
200x200 / 250x150 / 100x250	3.5MM -- 11.0 MM	6M IN STOCK (OR CUSTOMIZED 2-12m)
250x250 / 250x200 / 300x150 / 300x200	4.5MM -- 15.0 MM	6M IN STOCK (OR CUSTOMIZED 2-12m)
300x300 / 350x200 / 350x250 /300x150	4.5MM -- 15.0 MM	6M IN STOCK (OR CUSTOMIZED 2-12m)
350x350 / 350x300 / 450x250 / 400x300 / 500x200	4.5MM -- 15.75 MM	6M IN STOCK (OR CUSTOMIZED 2-12m)
400x400 / 280x280 / 400x350 / 400x250 / 500x250 / 500x300	4.5MM -- 15.75 MM	6M IN STOCK (OR CUSTOMIZED 2-12m)

Strict Quality Control:
1) During and after production, 4 QC staffs with more than 5 years experience inspect products in random.
2) National accredited laboratory with CNAS certificates
3) Acceptable inspection from third party appointed/paid by buyer, such as SGS, BV.
4) Approved by Malaysia, Indonesia, Singapore, Philippines, Australia, Peru and UK. We own UL /FM, ISO9001/18001, FPC certificates

Galvanized steel pipe