Mild steel box section |manufacturer|factory|producer|supplier

Yuantai Derun Mild Steel Box Section Manufacturer|Factory|Producer|Supplier

black square steel hollow section-Yuantai Derun

Mild Steel Box Section

Mild steel box section refers to the mild steel square box section and mild steelrectangular box section that has just been produced from the production line, and itssurface has not undergone any coating processing on the original steel surface, which isalso commonly referred to as black square tube and black rectangular tube.This mild steel box section is commonly used for buildings,bridge,steel structure,tunnel.dam ,airport ,CBD ,mechanical manufacturing, etc.

Leading Mild Steel Box Sections Forming Process And Advanced Technology

Yuantai Derun mainly has three major forming processes for producing mild steel box sections. Direct forming technology(DFT), first circular and then square forming process, and circular to square forming process. The direct forming production unit of Yuantai Derun Steel Pipe Manufacturing Group is a world leader. The precision and weld quality of the direct production unit in ordinary factories cannot meet the strict requirements of the buyer. However, Yuantai's direct squaring unit can achieve the precision of the formed R-angle, uniformity of wall thickness, smooth surface, flat inner and outer walls, and top quality weld seam in similar square steel pipe testing

Large Outer Diameter Mild Steeo Box Section Direct Forming Technology Unit

Large Outer Diameter Mild Steel Box Section Direct Forming Technology Unit

Black High-frequency Welding Mild Steel Box Section Unit

Round Shape To Square Shape Mild Steel Box Section Unit

Longitudinal Submerged Arc Welding Mild Steel Box Section Unit

Zinc Aluminum Magnesium Steel Pipe Welding And Forming Unit

Hot Dipped Galvanized Mild Steel Box Sections Unit

Cold Rolling Mill For Raw Material Plates

Steel Pipe & Tube Finished Product Heating Furnace Equipment

Zinc Aluminum Magnesium Steel Sheet Coating Unit

Mild Steel Box Section Quadrangle heating unit

Oil Coating And Rust Prevention Treatment For Pipes And Tubes

Comprehensive heat treatment equipment for finished pipe products

Complete Mild Steel Box Section Sizes:

This is mild steel box section specifications.

Mild steel square box section sizes: 10*10-1200*1200MM THK:0.5-60MM LENGTH:0.5-24M

Mild steel rectangular box section sizes: 10*15-800*1200mm THK:0.5-60mm Length:0.5-24m

In addition, we also have many best-selling products:

50x50 mild steel box section，25mm box section mild steel，20mm box section mild steel，40 x 40 mild steel box section，10mm box section steel，15mm mild steel box section，25x25 box section mild steel，50mm mild steel box section，etc.

O.D.(mm)	THK(mm)	O.D.(mm)	THK(mm)	O.D.(mm)	THK(mm)	O.D.(mm)	THK(mm)
20*20	1.3	60120 80100 90*90	1.50	180*180	3	300800 400700 550550 500600
	1.4		1.70		3.5-3.75		9.5-9.75
	1.5		1.80		4.5-4.75		11.5-11.75
	1.7		2.00		5.5-7.75		12-13.75
	1.8		2.20		9.5-9.75		15-50
	2.0		2.5-4.0		11.5-11.75
2030 2525	1.3		4.25-4.75		12.0-25.0
	1.4		5.0-6.3	100300 150250 200*200	2.75	300900 400800 600600 500700
	1.5		7.5-8		3.0-4.0		9.5-9.75
	1.7	50150 60140 80120 100100	1.50		4.5-9.75		11.5-11.75
	1.8		1.70		11.5-11.75		12-13.75
	2.0		2.00		12.5-12.75		15-50
	2.2		2.20		13.5-13.75
	2.5-3.0		2.5-2.75		15.5-30
2040 2540 3030 3040	1.3		3.0-4.75	150300 200250	3.75	3001000 400900 500800 600700 650*650
	1.4		5.5-6.3		4.5-4.75
	1.5		7.5-7.75		5.5-6.3		9.5-9.75
	1.7		9.5-9.75		7.5-7.75		11.5-11.75
	1.8		11.5-16		9.5-9.75		12-13.75
	2.0	60160 80140 100*120	2.50		11.5-11.75		15-50
	2.2		2.75		13.5-30
	2.5-3.0		3.0-4.75	200300 250250	3.75	4001000 500900 600800 700700
	3.25-4.0		5.5-6.3		4.5-4.75
2550 3050 3060 4040 4050 4060 50*50	1.3		7.5-7.75		5.5-6.3		9.5-9.75
	1.4		9.5-16		7.5-7.75		11.5-11.75
	1.5	75*150	2.50		9.5-9.75		12-13.75
	1.7		2.75		11.5-11.75		15-50
	1.8		3.0-3.75		12-13.75
	2.0		4.5-4.75		15.5-30
	2.2		5.5-6.3	200400 250350 300*300	4.5-6.3	5001000 600900 700800 750750
	2.5-3.0		7.5-7.75		7.5-7.75		9.5-9.75
	3.25-4.0		9.5-16		9.5-9.75		11.5-11.75
	4.25-4.75	80160 120120	2.50		11.5-11.75		12-13.75
	5.0-5.75		2.75		12-13.75		15-50
	5.75-6.3		3.0-4.75		15.5-30
4080 5070 5080 6060	1.3		5.5-6.3	200500 250450 300400 350350	5.5-6.3	5001100 600900 700800 800800
	1.5		7.5-7.75		7.5-7.75		9.5-9.75
	1.7		9.5-9.75		9.5-9.75		11.5-11.75
	1.8		11.5-20		11.5-11.75		12-13.75
	2.0	100*150	2.50		12-13.75		15-50
	2.2		2.75		15.5-30
	2.5-3.0		3.0-4.75	280*280	5.5-6.3	6001100 7001000 800900 850850
	3.25-4.0		5.5-6.3		7.5-7.75		9.5-9.75
	4.25-4.75		7.5-7.75		9.5-9.75		11.5-11.75
	5.0-6.0		9.5-9.75		11.5-11.75		12-13.75
40100 6080 70*70	1.3		11.5-20		12-13.75		15-50
	1.5	100200 120180 150*150	2.50		15.5-30
	1.7		2.75	350400 300450	7.5-7.75	7001100 8001000 900*900
	1.8		3.0-7.75		9.5-9.75		11.5-11.75
	2.0		9.5-9.75		11.5-11.75		12-13.75
	2.2		11.5-20		12-13.75		15-50
	2.5-3.0	100250 150200	3.00		15.5-30
	3.25-4.0		3.25-3.75	200600 300500 400*400	7.5-7.75	8001100 9001000 950*950
	4.25-4.75		4.25-4.75		9.5-9.75		11.5-11.75
	5.0-6.3		9.5-9.75		11.5-11.75		12-13.75
50100 6090 60100 7575 80*80	1.3		11.5-11.75		12-13.75		15-50
	1.5		12.25		15.5-40
	1.7	140*140	3.0-3.75	300600 400500 450*450	7.5-7.75	9001100 10001000 800*1200
	1.8		4.5-6.3		9.5-9.75
	2.0		7.5-7.75		11.5-11.75		20-60
	2.2		9.5-9.75		12-13.75
	2.5-3.0		11.5-25		15.5-40
	3.25-4.0	160*160	3.00	400600 500500	9.5-9.75	11001000 11001100
	4.25-4.75		3.5-3.75		11.5-11.75		20-60
	5.0-5.75		4.25-7.75		12-13.75
	7.5-8		9.5-25		15.5-40

More Mild Steel Box Section Standards And Steel Grade：

ASTM A500/501 Gr. A/B/C/D,ASTM A513 (1020-1026),ASTM A36 (A36)

EN 10210:S235,S355,S235JRH,S355J2H,S275NH,S275NLH,S355NH,S355NLH,S420NH,S460NH,S460NLH

EN 10219:S235,S355,S235JRH, S275J0H, S275J2H, S355J0H, S355J2H,S275NH,S275NLH,S355NH,S355NLH,S420NH,S460NH,S460NLH

JIS G3466:STKR400,STKR490,SS400

AS1153: C250,C350,C450

CSA G40.20/G40.21:300W/350W

GB/T6728/3094:Q195/235/355.

Good Mild Steel Box Section Price

Due to the different scenarios in which customers use mild steel box sections, the performance requirements for mild steel box sections are also different. However, our quotation must be based on the current acceptance of both parties. Yuantai Derun never engages in price wars, and we strive for good product quality. If you are hesitant about purchasing the steel box section you want, please contact our customer manager immediately. We will definitely give you the most reasonable price for mild steel box sections.

Mild Steel Box Section Suppliers -- Yuantai Derun Steel Pipe Group

Largest Universal Structural Carbon Steel Box Section Suppliers

12 factories, 90 production lines, 80 patented technologies, China's top 500 private enterprises and China's top 500 manufacturing industries, with an annual output of 10 million tons and a perennial spot supply of 200000 tons. China's largest carbon mild steel box section suppliers.

Yuantai Derun's main products include mild steel square box section, mild steel rectangular box section, mild steel hot-dip galvanized steel box section, ERW steel box section, large-diameter thick wall steel box section, ZMA coating steel box section,LSAW steel box section, spiral welded steel box section, seamless steel box section, shaped steel box section,galvanized coil, PPGI coil,ZMA steel coil,PV support,C channel,U channel,Z channel,steel spiral ground pile,etc.

Advantage Of Black Mild Steel Box Section

High Dimensional Accuracy

Uniform wall thickness

Strong weld seam

Stable Performance

There are no defective pipes such as inferior pipes, rusted pipes, joint pipes, and second-hand pipes

Safe transportation in its own fleet

Free Mild Steel Box Section Sample For You

Complete Mild Steel Box Section Certificate

Steel Box section products of Yuantai Derun have passed ISO9001, ISO14001, ISO45001, EN10219, EN10210, Singapore BC1, France BV, world green environmental protection EPD, Ph.D., DNV,ABC,and other certifications.

ISO9001

BC1

ISO14001 CNAS

ISO45001 CNAS

EN10219

EN10210

BV

TOP 500 Private Enterprise

JIS G3466

Application

Airport Venues

Black mild steel box section are indispensable in airport venue buildings，mild steel box section are indispensable in the airport venue buildings. This is our cooperation project Beijing Daxing International Airport

Expo Venues

2020 Dubai World Expo venue，The 2020 Dubai World Expo venue is one of the projects we participate in,our mild steel box section is used for Dubai Expo 2020.

Bridge Construction

Hong Kong-Zhuhai-Macao Bridge，Our steel box section products are involved in the construction of bridges. It is a bridge and tunnel project connecting Hong Kong, Zhuhai, Guangdong and Macao in China.

Building Construction

SINGAPORE GOOGLE BUILDING，From 2018 to 2019, we provided mild steel box section for the construction of google building in Singapore

Greenhouse Construction

From 2017 to 2018, we provided 75000 tons of galvanized steel box section products and other galvanized steel parts for the green house of the million feidan land improvement project in Egypt.

CBD Business District Building

From 2019 to 2020, we provided our mild steel box section products for the building development of CBD business district buildings in Cairo, Egypt

Theater Construction

Located in the west of Tiananmen Square in central Beijing, the National Grand Theatre is the largest theater complex in Asia.Yuantai Derun supply mild steel box section for the national grand theatre.

High Grade Villa Building

In 2018, we provided mild steel box section products for Dubai Hill high-end villa construction project.

Packaging And Shipping Of Mild Steel Box Section

Unless there is a special explanation, we provide each of our customers with comprehensive consideration before product transportation. Firstly, in order to reduce oxidation, we will oil or paint the steel pipe products. Secondly, whether it is packaged or bulk cargo customers, we will wrap the products to prevent damage in the middle. Thirdly, we use our own fleet for transportation, And track and inspect the goods in the whole process to ensure that the products arrive at the designated port accurately. Fourth, we provide each customer with a customer specialist to deal with pre-sales, in-sales and after-sales problems

Yuantai Derun Mild Steel Box Section Shipment And Packing

Mild Steel Box Section Packing

PVC woven bag wrapped tightly and anti oxidation

Bundle with logo and steel stamp of Yuantai Derun

Multi layer strapping packaging

Bulk shipment casing handling to save freight space for customers

Yuantai Derun Standard Mild Steel Box Section Specification Spot Packing Quantity

Size(mm)	Wall Thickness(mm)	Packaging quantity	Size(mm)	Wall Thickness(mm)	Packaging quantity	Size(mm)	Wall Thickness(mm)	Packaging quantity
20*20	All wall thicknesses	144	20*30	All wall thicknesses	150	80*120	5.75 and below	24
25*25	All wall thicknesses	144	20*40	All wall thicknesses	150	80*120	7.5 and above	20
30*30	All wall thicknesses	100	25*40	All wall thicknesses	140	80*140	All wall thicknesses	15
38*38	All wall thicknesses	100	25*50	All wall thicknesses	128	80*160	5.75 and below	18
40*40	All wall thicknesses	100	30*40	All wall thicknesses	130	80*160	7.5 and above	15
50*50	All wall thicknesses	64	30*50	All wall thicknesses	104	100*150	5.75 and below	15
60*60	All wall thicknesses	49	30*60	All wall thicknesses	84	100*150	7.5 and above	12
70*70	All wall thicknesses	36	40*50	All wall thicknesses	80	100*200	All wall thicknesses	8
75*75	All wall thicknesses	36	40*60	All wall thicknesses	70	100*250	All wall thicknesses	8
80*80	All wall thicknesses	36	40*80	All wall thicknesses	50	100*300	All wall thicknesses	8
90*90	All wall thicknesses	25	40*100	All wall thicknesses	40	150*200	All wall thicknesses	9
100*100	5.75 and below	25	50*70	All wall thicknesses	48	150*250	All wall thicknesses	6
100*100	7.5 and above	16	50*80	All wall thicknesses	40	150*300	All wall thicknesses	6
120*120	5.75 and below	16	50*90	All wall thicknesses	40	200*250	All wall thicknesses	4
120*120	7.5 and above	12	50*100	All wall thicknesses	32	200*300	All wall thicknesses	4
140*140	All wall thicknesses	9	50*150	All wall thicknesses	24	200*400	All wall thicknesses	2
150*150	All wall thicknesses	9	60*80	All wall thicknesses	35	200*500	All wall thicknesses	2
160*160	All wall thicknesses	9	60*90	All wall thicknesses	35	200*600	All wall thicknesses	1
180*180	All wall thicknesses	9	60*100	5.75 and below	35	250*300	All wall thicknesses	4
200*200	All wall thicknesses	4	60*100	7.5 and above	28	300*400	All wall thicknesses	1
250*250	All wall thicknesses	4	60*120	All wall thicknesses	28	300*500	All wall thicknesses	1
300*300	All wall thicknesses	4	60*140	All wall thicknesses	24	300*600	All wall thicknesses	1
350*350	All wall thicknesses	1	60*160	All wall thicknesses	21	350*450	All wall thicknesses	1
400*400	All wall thicknesses	1	75*150	All wall thicknesses	18	400*500	All wall thicknesses	1
450*450	All wall thicknesses	1	80*100	5.75 and below	25	400*600	All wall thicknesses	1
500*500	All wall thicknesses	1	80*100	7.5 and above	20	More Information Please Contact Us

Yuantai Derun Non-standard Mild Steel Box Section Spot Packaging Quantity

Size(mm)	Wall Thickness(mm)	Packaging quantity	Size(mm)	Wall Thickness(mm)	Packaging quantity	Size(mm)	Wall Thickness(mm)	Packaging quantity
125*125	All wall thicknesses	16	80*180	All wall thicknesses	12	120*300	All wall thicknesses	8
127*127	All wall thicknesses	16	80*200	All wall thicknesses	10	120*360	All wall thicknesses	4
130*130	All wall thicknesses	9	80*220	All wall thicknesses	10	140*180	All wall thicknesses	9
135*135	All wall thicknesses	9	80*300	All wall thicknesses	10	140*220	All wall thicknesses	8
220*220	All wall thicknesses	4	100*120	All wall thicknesses	16	150*350	All wall thicknesses	4
240*240	All wall thicknesses	4	100*125	All wall thicknesses	16	150*400	All wall thicknesses	4
280*280	All wall thicknesses	4	100*130	All wall thicknesses	16	180*260	All wall thicknesses	6
40*90	All wall thicknesses	50	100*140	All wall thicknesses	15	180*280	All wall thicknesses	6
50*75	All wall thicknesses	48	100*160	All wall thicknesses	12	180*350	All wall thicknesses	3
50*120	All wall thicknesses	32	100*180	All wall thicknesses	10	200*225	All wall thicknesses	4
50*125	All wall thicknesses	32	100*220	All wall thicknesses	8	200*280	All wall thicknesses	4
50*200	All wall thicknesses	16	100*350	All wall thicknesses	4	200*350	All wall thicknesses	2
60*180	All wall thicknesses	14	100*400	All wall thicknesses	4	200*450	All wall thicknesses	2
60*200	All wall thicknesses	16	110*360	All wall thicknesses	4	200*550	All wall thicknesses	1
65*180	All wall thicknesses	12	120*140	All wall thicknesses	12	250*350	All wall thicknesses	2
70*140	All wall thicknesses	18	120*150	All wall thicknesses	12	250*400	All wall thicknesses	1
70*200	All wall thicknesses	12	120*160	All wall thicknesses	12	250*500	All wall thicknesses	1
75*100	All wall thicknesses	24	120*180	All wall thicknesses	8	250*550	All wall thicknesses	1
75*125	All wall thicknesses	24	120*200	All wall thicknesses	8	250*600	All wall thicknesses	1
			120*250	All wall thicknesses	8	300*350	All wall thicknesses	1
						300*450	All wall thicknesses	1
						350*550	All wall thicknesses	1
						More Information Please Contact Us

Why Choose Yuantai Derun?

1. 100% after-sales quality and quantity assurance.
2. Professional sales managers quickly reply within 24 hours.
3. Large Stock for regular sizes.
4. Free sample 20cm high quality.
5. Strong production capacity and capital flow.
6. Accept small orders.
7. Famous brand raw materials
8. Supports OEM or ODM
9. 22 years of manufacturing experience
10. Can manufacture steel tubes of different projects and standards around the world
11. Yuantai Derun has a standing inventory of over 200000 tons, with annual shipping specifications of 10 * 10 * 0.5-1200 * 1200 * 60mm, 10 * 15 * 0.5-800 * 1200 * 60mm, Φ 219- Φ 3600mm, black mild steel box section, hot-dip galvanized square tube, spiral welded pipes,LSAW PIPE,nearly 8 million tons,
Add the Tangshan Factory, the total production capacity will reach 10 million tons.