Precision Seamless Pipe

Precision Seamless Pipe

Explore our precision seamless tubes, engineered to meet exacting standards for seamless performance in various industrial applications.

CDS is popular in the hydraulics, being used to make hollowed chrome plated telescopic cylinders and hydraulic rods. It is also popular for large bore, heavy walled, high pressure hydraulic cylinders.

Size range

Outer diameter: 10-120mm

Wall thickness: 1-20mm

Material/ Grade

Processing Techniques

Explore our steel processing techniques, including precision drawing (Cold Drawn) and precision rolling (Cold Rolled), ensuring high-quality and precise end products.

precision seamless pipe

Shape

Round, Special Shaped (Triangle, Rectangle, Hexagon, Octagon, and etc.)

Other special shapes, customizable according to drawings.

Chemical Composition Implementation Standard

Alloy Structure Steels:GB/T 3077-2015
Quality Carbon Structure Steels:GB/T 699-2015
High Strength Low Alloy Structure Steels :GB/T 1591-2018

Further Processing for steel tubes

Cutting

Chamfering

Threading

Chamfering

Inner diameter or Out diameter Lathing

Suface shot blasting

Laser marking

Cold Drawn Precision Tube Delivery Condition

Designation Symbol Description
Cold drawn/hard +C No heat treatment after the final cold drawing process
Cold drawn/soft +LC After the final heat treatment there is a suitable drawing pass
Cold drawn and stress relieved +SR After the final cold drawing process there is a stress relief heat treatment in a controlled atmosphere
Annealed +A After the final cold drawing process the tubes are annealed in a controlled atmosphere
Normalized +N After the final cold drawing operation the tubes are normalized in a controlled atmosphere

Precision seamless pipes are typically produced through a cold-drawn or cold-rolled process. This process involves drawing the steel through a die to achieve the desired dimensions and surface finish. The resulting pipes have tight tolerances and excellent surface quality.

GB standard/ ASTM/ DIN/ JIS/ Russia standard for seamless tubes

Type of steel GB(China) ASTM A519 DIN JIS3445/JIS G4051 OCT 4543-71
Carbon steel 10# 1010 C10/CK10 SKM11A/ S10C 10
20# 1020/1018 C22/CK22 STKM12A/ 12B/ 12C 20
Q235B S235JO(1.0114) SS400 Cr3K II
25# 1026 STKM13A /13B/13C/ S25C 25
35# 1035 C35/CK35 35
45# 1045 C45/CK45 45
55# CF53 55
65Mn 1566 65┌
Alloy steel 16Mn(Q345/Q355) St52
Q345A/A355A Grade 50[345] E355(1.0060) SPEC590 345
Q345B/Q355B S355JR(1.0045)
Q345C/Q355C S355J0(1.0553)
Q345D/Q355D S355J2(1.0577)
Q345E/Q355E S355NL(1.0546)
20Cr 5120 20Cr4(EN10084-1998) JIS SCr420(JIS G4053) 20X
40Cr 5140 41Cr4(1.7035) JIS SCr440(JIS G4053) 40X
15CrMo/15CrMoG 15CrMo4 SCM415 (JIS 4053) 15XM
20CrMo 18CrMo4(1.7243) SCM420(JIS 4053) 20XM
30CrMo 4130 25CrMo4(1.7225) SCM430 30XM
35CrMo 4135 35CrMo4(1.7220) SCM432/SCRRM3 35XM
42CrMo 4140 42CrMo4(1.6511) SCM440
20CrNiMo 8620 20NiCrMo2-2(1.6523) SNCM220 20XH2M(20HM)
40CrNiMo 4340/E4340 36CrNiMo4(1.6511) SNCM439 40XH2MA
20CrMnTi 18X┌T
20Mn2 1524 SMn420
40Mn2 1340 SMn438 40┌2
15CrMn 5115 16MnCr5(1.7131) 18X ┌
20CrMn 5120 20MnCr5(1.7147) SMnC420 18X┌
20CrMnMo SCM421
Free Cutting steel Y15 1213 11SMn30(1.0718) SUM22 A12
1215 11SMn37(1.0736) SUM22 A11
Tube steel GB/T 8162-2018 ASTM A519/A530 DIN17121/ EN 10297-1 JIS G3441/ JIS G3444/ JIS G3445
GB/T 8163-2018 ASTM A106
GB3639-2021 DIN1629/ DIN2391 / EN10305-1 GOST 8733-74
GOST 8734-75
(St.20, 09G2S)
GB/T 3094-2012 ASTM A500/ ASME SA500 GOST 8645-68/
GOST 8639-82
GB/T3087-2008 ASTM A179 JIS G3461/ JIS G3462
Precision welded tubes DIN EN10305-2/ DIN EN10305-3
Rebar coupler JG/T 163-2013 Acorrd to BS4449, B500, ASTM A615 Grade 40/ Grade 60/ Grade 75

Seamless Steel Tube Custom Features

Tube Design

Design according to usage and processing procedures.
Precision tubes especially for automotive components.

Alloy Steel

International Alloy steel available(ST52,4130,25CrMo4)
Full range of sizes and high precision.

Precision Seamless Pipe

Small Quantity

Trival Order: 3 tons to win trust.
The more order, the better price.

Shaped Tube

Hexagonal /Triangle /Splined /Trapezoidal/Square/fin tube/ other.
Exactly based on drawing.
Especially thick-wall tubes.

Raw material storage

Raw material storage

Hot perforation

Hot perforation

Cycling pickling

Cycling pickling

Cycling annealing

Cycling annealing

Ultrasonic & eddy current flaw

Ultrasonic & eddy current flaw

Straightening

Straightening

Cold rolling

Cold rolling

Cold drawing

Cold drawing

Seamless tube process Seamless tube process

Common defects encountered in the production process of seamless steel tubes

Explore common defects encountered in the production process of seamless steel tubes, along with potential causes and solutions.

Tube cracking

Tube cracking

In&Out Peeling

In&Out Peeling

In&Out Scratch

In&Out Scratch

Bad straightness

Bad straightness

Eccentricity

Eccentricity

Surface imperfections

Imperfections

Internal trembling marks

Internal trembling marks

Internal pits

Internal pits

No worry!

The above problems can be solvedby our factory.

Get in touch

Rebar couplers

Explore our range of high-quality rebar couplers designed for efficient and reliable connection of reinforcing bars in construction projects.

Carbon Chrome Tubing

Carbon Chrome Tubing manufactured from an alloy containing a high proportion of chrome, typically greater than 13%.

Monel Pipes

Monel pipes are a superalloy composed of nickel and copper and are a popular choice for chemical plants, oil refineries, petrochemical facilities and wastewater treatment plants because of their durability.

17-4 PH

17-4PH is a precipitation hardened(PH) martensitic stainless steel consisted of copper and niobium/tantalum.

Alloy 17-4 PH is a high strength stainless steel with good hardness and modest corrosion resistance properties, used widely in marine, food processing and petrochemical industries.

Ceramic Sleeve Lined Pipe

The ceramic sleeves lined pipe as a whole part, and then assemble it into the steel pipe with our high-strength-temperature-resistant epoxy adhesive.

95% alumina ceramic sleeve lined pipes, elbows and T pipes have been largely applied in lithium battery material conveying system in recently years.

Application area

Hydraulic system

Hydraulic system

Fire Fighting Accessories

Fire Fighting Accessories

Fastener - High Strength Nut

Fastener - High Strength Nut

Triangular Drill Pipe

Triangular Drill Pipe

Agricultural Drive Shaft

Agricultural Drive Shaft

Pre-stressed Anchoring Nut

Pre-stressed Anchoring Nut

【H】 Ceramic lined pipe

Ceramic lined pipe is made through self-propagating high-temperature synthesis (SHS) technique.

【H】 Cast basalt lined steel pipe

Cast basalt lined steel pipe is composed by lined with cast basalt pipe, outside steel pipe and cement mortar filling between the two layers.

【H】 Ceramic Tile Lined Pipes

Ceramic tile lined pipes have very uniform coating of specially formulated ceramic material that is affixed to the inner of the pipe.

【H】 Rare earth alloy wear-resistant pipe

The material of the rare earth alloy wear-resistant pipe is ZG40CrMnMoNiSiRe, which is also the grade of rare earth alloy steel.

【H】 Tubes Erosion Shields

Tubes Erosion Shields are used to protect boiler tubing from the highly erosive effects of high temperatures and pressures thereby greatly extending tube life.

【H】 ASTM A213 T91 Alloy Tube

The ASTM A213 T91 seamless tubes are primarily used for boiler, superheater, and heat-exchanger.

Ni-Hard Wearback Pipes Ni-Hard Wearback Pipes
//右侧淡出对话框