High Quality Ss490b A441 E355c St52-3u E36-3 S355j0 1.0553 16mn Square Tubing Galvanized Steel Pipe Rectangular Tube

• Type: Seamless
• Technique: Cold Drawn
• Material: Carbon Steel
• Surface Treatment: Oil, Bared, Black Paint, Galvanized
• Usage: Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose
• Section Shape: Square/Rectangular
• Model NO.: SS490B A441 E355C St52-3U E36-3 S355J0 1.0553 16Mn
• Transport Package: Standard Seaborne Packages
• Specification: 10 * 10mm - 400 * 400mm or according to customized
• Trademark: meide
• Origin: Shandong, China
• HS Code: 7304192000
• Production Capacity: 1000 Ton/Month

Product Description

Introduce

Seamless rectangular steel pipe is a square, rectangular steel pipe with a hollow section and no seams around it. Seamless steel pipes are made from steel ingots or solid tube blanks that are perforated into tubes, and then hot rolled, cold rolled, or cold drawn. Seamless steel pipes have a hollow cross-section and are widely used as pipelines for conveying fluids. Compared to solid steels such as round steel, steel pipes have a lower weight and the same flexural and torsional strength. They are a type of economical cross-section steel, and are widely used in the manufacture of structural and mechanical components such as petroleum drill pipes, automotive transmission shafts, bicycle racks, and steel scaffolds used in construction

Chemical composition

composition	C	Si	Mn	P	S	Cr	Ni	Cu
minimum value	0.12	0.2	1.2	-	-	-	-	-
maximum value	0.2	0.6	1.6	0.03	0.03	0.3	0.3	0.2

Approximate comparison table

GB	JIS	ASTM	ISO	DIN EN/DIN	W-Nr.	NF EN/NF	EN	Digital brand	GOST	SS	BS EN/BS
16Mn	SM490  SM490C  SS490C	1024	Fe510D	St52-3  St52-3N	1.0570	E36-3	S355J2(+N)  Fe510D1 S355J2G3	1.0570(dubl)	17G1S  17GS  S345	2135-01	50D

 

Product Description

seamless square steel pipe
Size	Outside  Diameter	Wall Thickness
	50x50-1000x1000mm	5-20mmmm
Tolerace	+/-5%	+/-5%
Standard	GB	GB/T 8162 GB/T 8163 etc.
	DIN	10#(ST37-2,ST35-8),20#(ST42,ST45-4/8),45#(DINCK45)
	JIS	10#(STPG38,STS38,),20#(STPG42)45#(JIS S45C)
	ASTM/AISI	10# /20#(ASTM a106/53 Gr.B ),45#(AISI1045)
Length	1-12m, or require by clients
Method	cold drawing, hot rolling or hot expanding
Min order	5 tons, more quantity price will be lower
Surface	Galvanized, 3PE, painting, coating oil, steel stamp, drilling, etc
Ends	Plain ends, cutting, threading, beveled, flange, etc

classification:
Square tubes are divided into:
Hot rolled seamless square tubes, cold drawn seamless square tubes, extruded seamless square tubes, welded square tubes
Square tubes are divided by surface treatment:
Hot-dip galvanized square tubes, electrogalvanized square tubes, oiled square tubes, and pickled square tubes
Square tubes are classified by wall thickness:
Ultra thick wall square tube, thick wall square tube, thin wall square tube

Application

The uses of square tubes include construction, machinery manufacturing, steel construction, and other projects, shipbuilding, solar power generation support, steel structural engineering, electrical engineering, power plants, agricultural and chemical machinery glass curtain walls, automotive chassis, airports, boiler construction, highway railings, housing construction, pressure vessels, oil storage tanks, bridges, power station equipment, lifting and transportation machinery, and other welding structures with high loads.

Cold drawn seamless square rectangular tube has a good appearance, precise dimensions, flat surface, high density, high strength, wear resistance, corrosion resistance, impact resistance, good impact resistance, compact structure, uniform plating thickness, strong adhesion, wear durability, and can be used for a long time.

Galvanizing method for seamless steel pipes
There are two major categories: hot galvanizing and electrogalvanizing. Hot galvanizing includes wet method, dry method, lead zinc method, oxidation reduction method, etc.
The main difference between different hot dip galvanizing methods is what method is used to activate the surface of the steel pipe to improve the galvanizing quality after the steel pipe is pickled and cleaned. Currently, dry method and oxidation reduction method are mainly used in production.
The zinc layer of electrogalvanizing has a smooth, dense surface and uniform structure; Good mechanical properties and corrosion resistance; Zinc consumption is 60% to 75% lower than that of hot galvanizing. Electrogalvanizing has certain technical complexities, but this method must be used for single sided plating, double sided plating with different thicknesses on the inner and outer surfaces, and thin walled pipe galvanizing.

Product Parameters

Out Diameter		Wall Thickness	Square Pipe/Tube(mm)		Rectangular Pipe/Tube(mm)
Inch	mm	mm	16×16×0.4~1.5	70×70×2.0~6.0	10×20×0.6~1.5	30×60×1.0~4.5
1/2	21.3	0.6-3.0	18×18×0.4~1.5	75×75×2.0~6.0	14×21×0.6~1.5	40×50×1.0~4.5
3/4	26.9	0.6-3.0	20×20×0.4~1.5	80×80×2.0~6.0	15×30×1.5~1.5	40×60×1.0~5.0
1	33.4	1.0-3.0	25×25×0.6~2.0	85×85×2.0~6.0	15×38×0.6~1.5	40×80×1.5~5.0
1 1/4	42.3	1.0-4.0	30×30×0.6~4.0	95×95×2.0~8.0	20×30×0.6~2.0	40×100×2.0~5.0
1 1/2	48.3	1.0-4.0	34×34×1.0~2.0	100×100×2.0~8.0	20×40×0.8~2.0	50×60×2.0~5.0
2	60.3	1.5-4.0	35×35×1.0~4.0	120×120×4.0~8.0	20×50×1.0~2.0	50×80×2.0~5.0
2 1/2	76.1	1.5-4.0	38×38×1.0~4.0	150×150×6.0~10.0	22×35×0.9~2.0	50×100×2.0~8.0
3	88.9	1.5-9.5	40×40×1.0~4.5	180×180×6.0~12.0	25×40×0.9~3.75	60×80×2.0~6.0
4	114.3	2.0-9.5	44×44×1.0~4.5	200×200×6.0~12.0	25×65×1.0~2.0	80×100×2.0~8.0
5	141.3	3.0-9.5	45×45×1.0~5.0	220×220×6.0~14.0	30×40×1.0~3.75	120×60×2.5~10.0
6	168.3	3.0-12.0	50×50×1.0~5.0	250×250×6.0~14.0	30×45×1.0~3.75	120×80×2.5~10.0
8	219.1	3.2-12.0	60×60×1.5~5.0		30×50×1.0~4.0
10	273	3.2-12.0
12	323.8	6.0-15.0
14	355.6	8.0-15.0
16	406.4	8.0-20.0

Packaging and delivery of square and rectangular hollow section pipes and steel pipes:

1. OD 300mm and below is packed with hexagonal maritime binding tape and steel tape, with two nylon slings for each bundle
2. Bulk with OD above 300mm or according to customer comments
Trial order of 25 tons/container and 5 tons/size;
4. The maximum length of a 20 "container is 5.8 m;
5. The maximum length of a 40 "container is 11.8m.

FAQ

1. Who are we?
Our headquarter is located in Shandong, China. Since 2022, we have sold to North America (60.00%), Western Europe (14.00%) and South America (6.00%). There are about 11-50 people in our office.

2. How do we guarantee quality?
Always provide pre-production samples before mass production;
Always carry out final inspection before shipment;

3. What can you buy from us?
Copper, aluminum, die steel, titanium, customized machine parts
4. Why should you buy from us instead of other suppliers?
The company has 25 years of production experience. It has advanced precision production equipment, modern large warehouse, 200000 tons of inventory goods and a number of long-term stable cooperative customers.

5. What services can we provide?
Accepted delivery conditions: FOB, CFR, CIF, EXW
Accepted payment currency: US dollar, Euro, Japanese yen, Canadian dollar, Australian dollar, Hong Kong dollar, British pound, RMB, Swiss franc;
Accepted payment type: T/T, L/C, D/P D/A, PayPal;
Optional ports: Tianjin, Shanghai, Guangzhou;
Spoken: English, Chinese

6. How can we get your price?
A. We need the following information to quote for you:
1).  Product Name
2).  standard
3).  Material grade (chemical composition)
4).  dimension
5).  amount
6).  Special part drawin