Special-shaped tube

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Special-shaped tube

Special-shaped pipes are seamless steel pipes made of various special shapes by cold drawing. Special-shaped pipes are generally distinguished according to the cross-section. According to the material, they can be divided into seamless steel pipe special-shaped pipes, aluminum alloy special-shaped pipes, and plastic special-shaped pipes.

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Features and Applications

Special-shaped seamless steel pipe is widely used in various structural parts, tools and mechanical parts. Compared with round pipe, special-shaped pipe generally has larger inertia moment and section modulus, and has greater bending and torsion resistance, which can greatly reduce the weight of the structure and save steel.
Specially shaped pipes are generally distinguished according to the cross section. According to the material, they can be divided into seamless steel pipe special-shaped pipes, aluminum alloy special-shaped pipes, and plastic special-shaped pipes. The following is mainly about steel pipe specials.
The steel pipe special-shaped pipe can be divided into elliptical special-shaped steel pipe, triangular special-shaped steel pipe, hexagonal special-shaped steel pipe, rhombic special-shaped steel pipe, octagonal special-shaped steel pipe, semicircular special-shaped steel circle, unequal hexagonal special-shaped steel pipe, five-petal plum shaped special-shaped steel pipe, double-convex special-shaped steel pipe, double-concave special-shaped steel pipe, melon shaped special-shaped steel pipe, conical special-shaped steel pipe, corrugated special-shaped steel pipe.

Product Parameters

Production Range	Outer Diameter:6-530mm (0.24 inch – 21.18 inch)
Production Range	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
Material / Grade	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

Chemical composition

Grade	C	Si	Mn	Cr	Ni	Mo	P	S	Cu
Grade	C	Si	Mn	Cr	Ni	Mo	≤
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
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
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
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
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
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
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	-
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
5150	0.48-0.53	0.15-0.35	0.70-0.90	0.70-0.90	-	-	0.040	0.040	-

Production Process

FACTORY

Our Company provides a variety of product customized processing services. The main export products include steel plate/coils/pipes/bars and other steel products.

CUSTOMER VISIT

The company mainly exports to more than 60 countries including Australia Peru,Colombia, Brazil, Bangladesh, India, South Korea, Pakistan, Italy, Turkey, etc.

CUSTOMER REVIEWS

The management has been engaged in steel industry for more than 20 years, full of experience for managing team and strong business relations with our valuable customers and factories.

APPLICATION AREAS

FAQ

HOW ABOUT YOUR DELIVERY TIME?

Generally speaking, 10 to 25 days after receiving your advance payment.The exact delivery time depends on the goods and quantity you ordered.

CAN WE VISIT YOUR FACTORY?

Warmly welcome. Once we have your schedule, we will arrange the professional sales team to follow up your case.

WHAT IS YOUR TERMS OF DELIVERY?

EXW, FOB, CFR, CIF, DDU.

WHAT IS YOUR TERMS OF PAYMENT?

Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance, balance before shippment. If you have another question,pls feel free to contact us ASAP.

CAN YOU PRODUCE ACCORDING TO THE SAMPLES?

Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.

CAN I GET SOME SAMPLES?

Yes. We can provide samples, you need to pay the sample fee and shipping cost in advance. We will refund the sample fee after you place your order. Please let us know your courier account or send us your fees and we will arrange to send you a sample.

Special-shaped tube