Octagonal Elliptical Steel Pip 30# 45# 50# Triangular Tube Hexagonal Tube Octagonal Tube Pipe Wholesale

• Customization: Available
• Warranty: 1year
• Type: Seamless
• Model NO.: 30# 45# 50#
• Material: Carbon Steel
• Surface Treatment: Galvanized
• Usage: Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose
• Section Shape: Round
• Port of Shipment: Tianjin/Qingdao
• Quality: 100% Tested
• OEM: Accepable
• Wall Thickness: 1-20 mm
• Length: 10-1200mm
• Transport Package: Standard Marine Packaging
• Specification: 100-12000mm
• Trademark: meide
• Origin: Shandong, China
• HS Code: 7304419000
• Production Capacity: 1000 Ton/Month

Product Description

Introduce

According to the shape, special-shaped steel pipes are divided into: outer hexagonal and inner hexagonal steel pipes, outer hexagonal and inner hexagonal steel pipes, flat elliptical steel pipes, elliptical steel pipes, triangular pipes, L-shaped steel pipes, octagonal pipes, mushroom shaped pipes, bread shaped pipes, D-shaped pipes, concave pipes, convex pipes, umbrella shaped pipes, P-shaped pipes, Yuanbao shaped pipes, and other special-shaped steel pipes. The shape of special-shaped steel pipes is produced according to user needs. Used in pipeline transportation, boiler pipes, hydraulic/automotive pipes, oil/gas drilling, food/beverage/dairy products, mechanical industry, chemical industry, mining, construction and decoration, and special application

Product Description

Production Range	Outer Diameter:6-530mm (0.24 inch - 21.18 inch)
	Wall Thickness:0.8-200mm (0.03 inch - 7.89 inch)
Material / Grade	Carbon Steel: GB/T 3094: 10#, 20#, 35#, 45#, 55#, Q235B, Q235C, CF53, A105 ASTM A519: 1010, 1020, 1026, 1035, 1045, 1050 DIN17121/EN 10297-1, DIN1629/DIN2391/EN 10305-1: C10/CK10, C22/CK22, C35/CK35, C45/CK45, CF53 JIS3441/JIS3444/JIS3445: STKM11A, STKM12A/STKM12B/STKM12C, STKM13A/STKM13B/STKM13C JIS G4051: S10C, S20C, S25C, S35C, S45C, S55C
	Alloy Steel: GB/T 3094: 16Mn(Q345B), 20Cr, 40Cr, 15CrMo, 20CrMo, 28CrMo, 30CrMo, 35CrMo, 42CrMo, 20CrMnTi, 40MnMoV, 20Mn2, ZF6, 16MnCr5, 20MnCr5, 38Mn2V, 09CrCuSb(ND) ASTM A519: 5120, 5140, 4130, 4135, 4140 DIN17121/EN 10297-1, DIN1629/DIN2391/EN 10305-1: ST52, EN10084-1998 20Cr4, 41Cr4, 15CrMo4, 25CrMo4, 35CrMo4, 42CrMo4, 16MnCr5 JIS3441/JIS3444/JIS3445: SCM432/SCRRM3, SCM4 JIS G4053: JIS SCr420, JIS SCr440, SCM415, SCM420
Tolerance	Can be customized according to customer's requirements
Technique	Cold Drawn / Cold Rolled
Shape	Triangle, Hexagon, Square, Rectangle, Octagon, Lemon Pipe and Others can be customized
Further Processing for Steel Tubes	Cutting, Chamfer, Threading, Inner diameter or Outer Diameter Lathe, Surface Shot Blasting, Laser Marking

 

Grade	C	Si	Mn	Cr	Ni	Mo	P	S	Cu
							≤
20Mn2	0.17-0.24	0.17-0.37	1.40-1.80	≤0.30	≤0.30	≤0.10	0.030	0.030	0.30
SMn420	0.17-0.23	0.15-0.35	1.20-1.50	≤0.35	≤0.25		0.030	0.030	0.30
1524	0.19-0.25	0.15-0.30	1.35-1.65	-	-		0.040	0.050	0.20
22Mn6	0.18-0.25	0.10-0.40	1.30-1.65	≤0.40	≤0.40	≤0.10	0.025	0.035	0.30
20SiMn2MoV	0.17-0.23	0.90-1.20	2.20-2.60	≤0.30	≤0.30	0.30-0.40	0.030	0.030	0.30
15Cr	0.12-0.17	0.17-0.37	0.40-0.70	0.70-1.00	≤0.30	≤0.10	0.030	0.030	0.30
15X	0.12-0.18	0.17-0.37	0.40-0.70	0.70-1.00	≤0.30	-	0.035	0.035	0.30
SCr415	0.13-0.18	0.15-0.35	0.60-0.90	0.90-1.20	≤0.25	-	0.030	0.030	0.30
5115	0.13-0.18	0.15-0.35	0.70-0.90	0.70-0.90	-	-	0.040	0.040	-
17Cr3	0.14-0.20	0.15-0.40	0.60-0.90	0.70-1.00	-	-	0.025	0.035	0.40
1.7016	0.14-0.20	≤0.30	0.60-0.90	0.70-1.00		-	0.025	0.025	0.25
20Cr	0.18-0.24	0.17-0.37	0.50-.080	0.70-1.00	≤0.30	≤0.10	0.030	0.030	0.30
20X	0.17-0.23	0.17-0.37	0.50-0.80	0.70-1.00	≤0.30		0.035	0.035	0.30
SCr420	0.18-0.23	0.15-0.35	0.60-0.90	0.90-1.20	≤0.25		0.030	0.030	0.30
5120	0.17-0.22	0.15-0.35	0.70-0.90	0.70-0.90			0.040	0.040	-
20Cr4	0.17-0.23	0.15-0.40	0.60-0.90	0.90-1.20			0.025	0.035	0.40
40Cr	0.37-0.44	0.17-0.37	0.50-0.80	0.80-1.10	≤0.30	≤0.10	0.030	0.030	0.30
40X	0.36-0.44	0.17-0.37	0.50-0.80	0.80-1.10	≤0.30	-	0.035	0.035	0.30
SCr440	0.38-0.43	0.15-0.35	0.60-0.90	0.90-1.20	≤0.25	-	0.030	0.030	0.30
5140	0.38-0.43	0.15-0.35	0.70-1.20	0.70-0.90	-	-	0.040	0.040	-
41Cr4	0.38-0.45	0.10-0.40	0.90-1.20	0.90-1.20	-	-	0.025	0.035	0.40
1.7035	0.38-0.45	-	0.90-1.20	0.90-1.20	-	-	0.025	0.025	0.25
50Cr	0.47-0.54	0.17-0.37	0.50-0.80	0.80-1.10	≤0.30	≤0.10	0.030	0.030	0.30
50X	0.46-0.54	0.17-0.37	0.50-0.80	0.80-1.10	≤0.30	-	0.035	0.035	0.30
5150	0.48-0.53	0.15-0.35	0.70-0.90	0.70-0.90	-	-	0.040	0.040	-

Mechanical property

condition	Heat treatment or status	Heat treatment or status	Heat treatment or status
Hot rolled bar and wire	Spheroidizing annealing (GKZ) or spheroidizing annealing (GKZ)+peeling (SH)	≤460	≥65
Pulling products	Cold drawing (K)+spheroidizing annealing (GKZ)	≤460	≥65
Pulling products	Cold drawing (K)+spheroidizing annealing (GKZ)+finishing (K)	≤490	≥65

storage

1. For the storage of special-shaped steel pipe products, the site or warehouse should be selected in a clean and tidy place with smooth drainage, and away from factories and mines with harmful gases or dust. The ground should be cleaned of weeds and all debris to maintain the cleanliness of the steel.
2. In the warehouse, it is not allowed to stack materials that have a corrosive effect on steel, such as acid, alkali, salt, and sensitive soil. Different types of steel should be classified and stacked to avoid confusion and contact with corrosive objects.
3. Large steel pipes, rails, steel plates, large-diameter steel pipes, forgings, etc. can be stacked outdoors.
4. Small and medium-sized shaped steel, wire rods, steel bars, medium diameter steel pipes, steel wires, and wire ropes can be stored and placed in a well ventilated material shed, and it is important to remember to cover the top and cushion the bottom.
5. Small scale steel, thin steel plates, steel strips, small diameter or irregular steel pipes, various cold-rolled and cold-drawn steels, as well as expensive and easily corrosive metal products, can be stored and placed in storage.
6. The warehouse should be selected based on geographical conditions, and ordinary closed warehouses should be used when deemed appropriate, that is, warehouses with roofs, walls, tight windows, and ventilation devices.
7. The warehouse requires frequent maintenance of a suitable storage background, with attention to ventilation on sunny days and closed to prevent moisture on rainy days.

 

 

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