Cold Worked Custom Material 4140/Scm440/ 42CrMo4/1.7225/42CrMo Steel Outer Circle Inner Hexagonal Seamless Special Shaped Pipe

• Customization: Available
• After-sales Service: Support Online
• Warranty: 1year
• Model NO.: 4140/SCM440/ 42CrMo4/1.7225/42CrMo
• Type: Seamless
• Technique: Cold Drawn
• Material: Alloy Steel
• Surface Treatment: Black/Oiled/Galvanization
• Usage: Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose
• Section Shape: Square/Circle/Triangle/Hexagonal/Irregular
• Wall Thickness: 1-20 mm
• Tolerant: Plusmn;0.15mm
• Length: 10-1200mm
• Tech: Cold Drawn / Cold Rolled
• Transport Package: Standard Airworthiness Packaging or as Required
• Specification: 4135/SCM435/34CrMo4/35CrMo/1.7220
• Trademark: meide
• Origin: Shandong, China
• HS Code: 7304291000
• Production Capacity: 1000 Ton/Month

Product Description

Introduce

Specially shaped seamless steel pipes are a general term for seamless steel pipes with other cross-sectional shapes except for circular pipes. According to the different cross-sectional dimensions of steel pipes, they can be divided into equal wall thickness irregular seamless steel pipes (code D), unequal wall thickness irregular seamless steel pipes (code BD), and variable diameter irregular seamless steel pipes (code BJ). Specially shaped seamless steel pipes are widely used in various structural components, tools, and mechanical components. Compared with circular pipes, special-shaped pipes generally have larger moments of inertia and cross-sectional modulus, and have greater bending and torsion resistance, which can greatly reduce structural weight and save steel.

Approximate comparison table

composition	C	Si	Mn	P	S	Cr	Ni	Cu	Mo
16Mn	0.13-0.2	0.2-0.6	1.2-1.6	≤0.025	≤0.01	≤0.3	≤0.3	≤0.2
20Cr	0.18-0.24	0.17-0.37	0.5-0.8	≤0.035	≤0.035	0.7-1	≤0.3	≤0.3	≤0.15
40Cr	0.37-0.44	0.17-0.37	0.5-0.8	≤0.035	≤0.035	0.8-1.1	≤0.3	≤0.3	≤0.15
15CrMo	0.12-0.18	0.17-0.37	0.4-0.7	≤0.035	≤0.035	0.8-1.1	≤0.3	≤0.3	0.4-0.55
20CrMo	0.17-0.24	0.17-0.37	0.4-0.7	≤0.035	≤0.035	0.8-1.1	≤0.3	≤0.3	0.15-0 .25
30CrMo	0.26-0.34	0.17-0.37	0.4-0.7	≤0.035	≤0.035	0.8-1.1	≤0.3	≤0.3	0.15-0.25
35CrMo	0.32-0.4	0.17-0.37	0.4-0.7	≤0.035	≤0.035	0.8-1.1	≤0.3	≤0.3	0.15-0.25
42CrMo/4140	0.38-0.45	0.17-0.37	0.5-0.8	≤0.035	≤0.035	0.9-1.2	≤0.3	≤0.3	0.15-0.25
5120	0.17-0.22	0.15-0.35	0.7-0.9	≤0.035	≤0.035	0.7-0.9	≤0.25	≤0.35	≤0.06

Product Description

Production Range	Outer Diameter:10-1020mm (0.4 inch - 40.16inch)
	Wall Thickness:1-200mm (0.04 inch - 7.89 inch)
Material / Grade	Carbon Steel: GB/T 8162 & 8163 & 3639: 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 8162 & 8163 & 3639: 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
	stainless steel: 201 202 301 304 304L 304H 309  309S  310 310S 316 316L 316Ti  321 317 317L  321 329  347  347H 409L 410 410S 420  420JI 420J2 430 431 434 436L 439 441 443 444 S20100, S20200, S30100, S30400, S30403, S30908, S31008, S31600, S31635, SUS304HTB, SUS304LTB,SUS309TB,SUS309STB,SUS310TB,SUS310STB,SUS316TB,SUS316HTB, SUS316HTB, SUS316LTB,SUS316TiTB,SUS317TB,SUS317LTB,SUS836LTB,SUS890LTB,SUS321TB, SUS409LTB, SUS410TB,SUS410TiTB,SUS430TB,SUS430LXTB,SUS430JL1TB,SUS436LTB
Technique	Cold Drawn / Cold Rolled
Shape	Square/Rectangular
Further Processing for Steel Tubes	Final Annealing, Cutting, Chamfer, Threading, Inner diameter or Outer Diameter Lathe, Surface Shot Blasting, Laser Marking

structure
It is an economic cross-section steel pipe. This includes cross-sectional contours that are non circular, of equal wall thickness, of varying wall thickness, of varying diameter and wall thickness along the length direction, and of symmetrical and asymmetric cross-sections. Such as square, rectangular, conical, trapezoidal, spiral, etc. Specially shaped steel pipes are more suitable for the unique usage conditions, saving metal and improving labor productivity in component manufacturing. It is widely used in aviation, automobiles, shipbuilding, mining machinery, agricultural machinery, construction, light textile, and boiler manufacturing. The methods for producing shaped pipes include cold drawing, electric welding, extrusion, hot rolling, etc. Among them, the cold drawing method has been widely used.

Shandong Meide Import and Export Co., Ltd. is a professional manufacturer and global trader, backed by an advanced research and development team.
Our product range has been expanded to a wider range of options, including steel, aluminum, copper, titanium, and various processed parts, supporting customization. All products are manufactured according to national standards and specifications.

 

Rust resistance method

Although the scope of use of galvanized shaped steel pipes is becoming increasingly widespread and the environment of use is different, the requirements for galvanized shaped steel pipes are becoming increasingly strict, and there are new requirements for the rust resistance of galvanized shaped steel pipes because the coating process requirements for galvanized shaped steel pipes are also very strict. So what methods are used to improve the rust resistance of galvanized shaped steel pipes?

1 .Rust removal: This is an important process before coating galvanized irregular steel pipes, components, etc., and it is the key to the quality of galvanized irregular steel pipes. Thorough rust removal can improve the adhesion of anti rust paint, thereby extending the service life of galvanized irregular steel pipes.
2. After sandblasting, shot blasting, or acid pickling, the surface of galvanized irregular steel pipes is cleaned of oxide scale and rust, which improves the adhesion of the coating. When the installation site unconditionally adopts sandblasting or shot blasting methods for treatment, manual mechanical rust removal can be used, but the rust removal quality level must be achieved.
3. When sandblasting or manual mechanical rust removal is used, due to the detachment of oxide scale on the surface of galvanized irregular steel pipes, the metal on the surface of galvanized irregular steel pipes is directly exposed in the air. If a primer is not applied in a timely manner, the surface of galvanized irregular steel pipes is prone to rust again, affecting the adhesion of the paint film. Due to the timeliness of paint materials, inventory backlog is prone to expiration and failure. Therefore, the main indicators of paint must be retested before use, and the results must meet the standards before use.

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