Csdls Steel Tube Supplier Cold Drawn Seamless Steel Tube Pipe

• Customization: Available
• Type: Carbon Steel Tube
• Standard: GB
• Model NO.: CD -0039
• Composition: Carbon Steel
• Technique: Cold Drawn
• Shape: Round or Quadrate
• Surface Treatment: Polished
• Special Use: Wear Resistant Steel, Cold Heading Steel, Free Cutting Steel
• Application: Metallurgy, Mining, Construction Machinery, etc
• Package: as Request
• Capacity: 1, 000~1, 500 Tons/Month
• Internal Diameter: 100~500mm
• Size: Customized
• Transport Package: Wooden Strip, Wrapping Film
• Specification: as customer′s request
• Trademark: CSDLS, neutral, as request
• Origin: China
• HS Code: 7304319000
• Production Capacity: 12, 000~18, 000 Tons/Year

Product Description

Product Description

Type:	High-precision cold-drawn seamless tube
Standard:	GB/T3639-2018, GB/T 5777-2008,the technology agreement
Material steel:	45#, 16Mn(Q345B), 25Mn, 27SiMn, SY720, ZNP460
Internal diameter Tolerance:	H8, H9,H10
Straightness rate/roundness rate/mechanical performance :	As agreement
Chrome-plated	Area and thickness as request
Size:	100mm-500mm
Shape:	Round, square
Package:	As request
Usage:	1. For oil cylinder's outside cylinder and piston rod;   2. For transportation of natural gas, oil, kerosene, etc to avoid leakage;  3. For making parts of some machines such as the drive shaft of an automobile or the drill pipe of oil and bicycle frames;  4. For some large machinery such as boiler heating supply pipe;  5. For the storage of liquefied natural gas such as taxi trunk cylinders.

 

Domestic and Foreign Steel Pipe Material Comparison Table

China CB	Japan JIS	United States AISI. ASTM	United Kingdom BS	Germany DIN	France NF	Former Soviet Union r OCT
Q235-A·F	SS41	A36. A283C		Ust37-2
Q235-A	SS41A. B			Rst37-2		CT2
20	S20C	C1020	En2C	C22	C20	20
35	S35C	C1035	En&A	C35	XC38	35
20g	SB42	A285.Gr.B AM14. GrB	1633GrB	Ast41	M2C	20K
20	STPG38. 42	A106. A53		S2354
16Mn	SM50B SM22		1633. Gr.1	st52-3		16r
16MnR	SPV36	A516. A515.Gr·60 Gr·70		19Mr5
15MnV	HTPS7VW	AZ25.GrA A225. GrB
40Mn		C1036	En158	40MA	40Mr5	40T
40Cr	SCr4	5140	En18 S117	41C4	38C4	40X
120Mo		A335. P2 A213. GrB	3064-660 1501-620	130MoM	12CD4	12XM
150Mo	STT42 STB42	A387. Gr BS	C42 1653	160Mo4	15CD4	15XM
35CMo	SCM3	64132 64135	En198	34CT4	35CD4	35XM
0tr13	SUS410	4105 S41000		X7Cn13	26C13	08X13
0Cr18N9	SUS304	304 S30400	304S15	X5CrNi189	ZON18.09	08X18H10
OCr18Ni10Ti	SUS321	321 S32100	321512 321520	X10CNiTi189	Z6CNT18.10	0EX17H13M2

 

Kind	Steel Grade	Chemical Composition (%)	Mechanical Properties
Carbon Steels	Q235	C: 0.12 - 0.22, Si: ≤0.30, Mn: 0.30 - 0.70, P: ≤0.045, S: ≤0.050.	Yield strength: 235 MPa, Tensile strength: 375 - 500 MPa, Elongation: ≥26%.
	45#	C: 0.42 - 0.50, Si: 0.17 - 0.37, Mn: 0.50 - 0.80, P: ≤0.035, S: ≤0.035.	Yield strength: ≥355 MPa, Tensile strength: ≥600 MPa, Elongation: ≥16%.
Alloy Steels	20CrMnTi	C: 0.17 - 0.23, Si: 0.17 - 0.37, Mn: 0.80 - 1.10, Cr: 1.00 - 1.30, Ti: 0.04 - 0.10, P: ≤0.035, S: ≤0.035.	Yield strength: ≥835 MPa, Tensile strength: ≥1080 MPa, Elongation: ≥10%.
	38CrMoAl	C: 0.35 - 0.42, Si: 0.20 - 0.45, Mn: 0.30 - 0.60, Cr: 1.35 - 1.65, Mo: 0.15 - 0.25, Al: 0.70 - 1.10, P: ≤0.035, S: ≤0.035.	Yield strength: ≥835 MPa, Tensile strength: ≥980 MPa, Elongation: ≥14%.
Stainless Steels	0Cr18Ni9 (304)	C: ≤0.07, Si: ≤1.00, Mn: ≤2.00, Cr: 17.00 - 19.00, Ni: 8.00 - 11.00, P: ≤0.035, S: ≤0.035.	Yield strength: ≥205 MPa, Tensile strength: ≥520 MPa, Elongation: ≥40%.
	1Cr18Ni9Ti	C: ≤0.12, Si: ≤1.00, Mn: ≤2.00, Cr: 17.00 - 19.00, Ni: 8.00 - 11.00, Ti: 5(C - 0.02) - 0.80, P: ≤0.035, S: ≤0.035.	Yield strength: ≥205 MPa, Tensile strength: ≥520 MPa, Elongation: ≥40%.
Tool Steels	T8	C: 0.75 - 0.84, Si: ≤0.35, Mn: ≤0.40, P: ≤0.030, S: ≤0.020.	Hardness: HRC 62 - 64 (after proper heat treatment). High wear resistance and suitable for making cutting tools.
	Cr12MoV	C: 1.45 - 1.70, Cr: 11.00 - 12.50, Mo: 0.40 - 0.60, V: 0.15 - 0.30, Si: ≤0.40, Mn: ≤0.40, P: ≤0.030, S: ≤0.030.	Hardness: HRC 58 - 62 (after heat treatment). It has high hardness, good wear resistance and toughness, and is widely used in cold work molds.
High-Speed Steels	W18Cr4V	C: 0.70 - 0.80, W: 17.50 - 19.00, Cr: 3.80 - 4.40, V: 1.00 - 1.40, Si: ≤0.40, Mn: ≤0.40, P: ≤0.030, S: ≤0.030.	Hardness: HRC 63 - 66 (after heat treatment). It has excellent red hardness and wear resistance, and is suitable for high-speed cutting tools.
High-Speed Steels	M2 (W6Mo5Cr4V2)	C: 0.80 - 0.90, W: 5.50 - 6.75, Mo: 4.50 - 5.50, Cr: 3.80 - 4.40, V: 1.75 - 2.20, Si: ≤0.40, Mn: ≤0.40, P: ≤0.030, S: ≤0.030.	Hardness: HRC 63 - 66 (after heat treatment). It has better toughness and cutting performance than W18Cr4V, and is widely used in various high-speed cutting tools.

 

Detailed Photos

Production Process

Product Introduction

We have a 400-ton hydraulic cold drawn unit, mainly produce cold drawn pipes,honing pipes and scrape roll pipes of various specifications and materials as round (diameter 100mm to 500mm) or special-shaped ones.
   

Company Profile

Changsha Dalishen Hydraulic Engineering Co., Ltd., founded in 2007, is a Hi-tech enterprise which is mainly engaged in developing, producing and marketing of precision seamless steel pipe, pipe for oil cylinder, concrete delivery cylinder, oil cylinder, concrete pumping system assembly and cylinder fittings. CSDLS is the first hydraulic cold-drawn seamless steel pipe manufacturer in South China and involved in a number of China's national standards' formulation of the industry. We have 13 effective utility patents at present. With our powerful RD and machining equipment, we can also process as your drawing. With an area of 29000 square meters factory, we can provide quite production lines for timely mass production. So far we have established business relationship with many famous companies such as SANY, Zoomlion,  ZMJ, LiuGong and XANJER.

Our brand is CSDLS. Our products are widely used in engineering machinery, mining machinery, construction machinery, metallurgy, water conservancy projects and other industries. Quality is the company's priority. We are strictly in accordance with the ISO9001:2015. We make sure to provide you high quality products with competitive prices, prompt transportation and satisfied after-sales service. Sincerely welcome to visit our factory and looking forward to cooperating with every customer who is interested in our products and to seeking development together with each other.

Facilities

 CSDLS is a professional hydraulic engineering company with many advanced equipments in our factory. There are equipments specializing in making high-quality cylinders to create every detail precisely; there are equipments focusing on the production of conveying cylinders to provide strong support for efficient conveying; and there are also professional equipments for manufacturing cold-drawn tubes to ensure the excellent quality of the tubes. In addition, the production equipment for various cylinder accessories is also readily available. All these equipments together lay a solid foundation for us to produce high quality hydraulic products, and you can visualize our strong production strength through the pictures.     

Technology Innovation

CSDLS has always taken innovation as its core, continued to carry out research on new technologies, new products and new processes, and developed hydraulic products with high technologies and strong market competitiveness.

Our Advantages and FAQ

Our key competitive advantages include:

Exceptional Technical Expertise: Our team of experienced engineers and technical specialists utilizes the latest hydraulic technologies and state-of-the-art production equipment to ensure every product meets world-class standards.
Comprehensive Customization Capabilities: Whether for standard products or unique customization needs, we provide flexible and precise solutions tailored to the specific requirements of our customers.
Stringent Quality Management: With ISO9001 and multiple international certifications, we rigorously control quality at every stage of production to ensure high durability and stability.
Reliable Delivery and Service: We understand the importance of time for our customers. With our efficient supply chain and logistics systems, we ensure timely delivery and offer 24/7 technical support and after-sales service.
Competitive Pricing Advantage: While maintaining uncompromised quality, we offer highly competitive prices in the industry, helping our customers gain an edge in the market.