Seamless A283m Ss400 S235jrg2 1.0144 Q235C 2.5mm Square and Rectangular Steel Pipes and Tubes

• 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.: A283M SS400 S235JRG2 1.0144 Q235C
• 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.
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

Chemical composition

	C	Si	Mn	P	S	Cr	Ni	Cu	As	N
Q195 Cr.B SS330 SPHC SPHD S185	≤0.12	≤0.3	≤0.5	≤0.35	≤0.04	≤0.3	≤0.3	≤0.3	≤0.08	≤0.008
Q215 RSt34-2 1.0034 St2ps	≤0.15	≤0.35	≤0.12	≤0.045	≤0.05	≤0.3	≤0.3	≤0.3	≤0.08	≤0.008
SS400 1015 1.0038 Q235 RSt37-2	0.18-0.28	≤0.3	0.4-0.7	≤0.045	≤0.05	≤0.3	≤0.3	≤0.35	-	≤0.008
SM400A Q255 A709M Gr.36 St44-2 1.0044	0.18-0.28	≤0.3	0.4-0.7	≤0.045	≤0.05	≤0.3	≤0.3	≤0.35	-	≤0.008
Q275 U12752 SS490 K02901 S275J2G3 1.0144	≤0.24	≤0.35	≤1.5	≤0.045	≤0.05	≤0.3	≤0.3	≤0.3	≤0.08	≤0.008

Approximate comparison table

1  

GB

ISC

CNS

JIS

KS

ASTM

UNS

ISO

DIN EN/DIN

W-Nr.

NF EN/NF

GOST

SS

BS EN/BS

Q235A  Q235B  Q235C  Q235D  (A3)  (C3)

U12352  U12355  U12358  U12359

SS400

SS400  (SS41)

SS400

A570 Gr.A  A570 Gr.D  A283M Gr.D

K02501  K02502

Fe360A  Fe360D

S235JR  S235JRG1  S235JRG2  (St37-2)  (USt37-2)  (RSt37-2)

1.0037  1.0036  1.0038

S235JR  S235JRG1  S235JRG2  (E24-2)  (E24-2NE)

Ст3кп-2  Ст3кп-3  Ст3кп-4  БСт3кп-2

1311  1312

S235JR  S235JRG1  S235JRG2  (40B)  (C)

2  3  4  
 

GB	JIS	ASTM	ISO	DIN EN/DIN	NF EN/NF	EN	Digital brand	GOST	SS	BS EN/BS
Q235C	SS330	Gr.36	Fe360B	RSt37-2  S235JRG2	E24-2NE	S235JRG2  Fe360BFN	1.0038	St3ps  St3sp	1312-00	40B

 

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

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.

Product Parameters

Square and Rectangular Steel Pipe size chart
Square Hollow Section	Rectangular Hollow Section	Thickness
20*20  25*25  30*30	20*40  30*40	1.2-3.0
40*40  50*50	30*50  25*50  30*60  40*60	1.2-4.75
60*60	50*70  40*80	1.2-5.75
70*70  80*80  75*75  90*90  100*100	60*80  50*80  100*40  120*80	1.5-5.75
120*120  140*140  150*150	160*80  100*150  140*80  100*180  200*100	2.5-10.0
160*160  180*180  200*200	200*150  250*150	3.5-12.0
250*250  300*300  400*200  350*350  350*300	250*200  300*200  350*200  350*250  450*250  400*300  500*200	4.5-15.75
400*400  280*280  450*300  450*200	400*350  400*250  500*250  500*300  400*600	5.0-20.0

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