20 Grade Honed Tube for Hydraulic Cylinder and Boiler Pipes

• Customization: Available
• After-sales Service: Maintenance
• Warranty: 1 Year
• Type: Seamless
• Technique: Cold Drawn
• Material: Carbon Steel
• Surface Treatment: Black
• Usage: Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose
• Grade: 20
• Delivery Time: 22-30 Days
• Application: Fluid Pipe, Boiler Pipe, Drill Pipe, Hydraulic Pip
• Certificate: JIS, ISO9001
• Processing Service: Welding, Punching, Cutting, Bending, Decoiling
• Delivery Condition: Bk+S, Nbk
• Straightness: <=0.5/1000
• Types: Seamless, Cold Drawn, Honed, Skived Roller Burnish
• Service: Honed Tube, Chrome Rod, Make and Repair Hydraulic
• Transport Package: Paper Sleeved, Shockproof Membrane, Wooden Case
• Specification: 4m, 5.8m, 6m, 7.5m
• Trademark: ISO F7
• Origin: China
• HS Code: 8483109000
• Production Capacity: 20000tons/Year

Product Description

Factory Introduction

INTRODUCTION OF COMPANY - ONE OF LEADING HYDRAULIC CYLINDER HONED TUBE SUPPLIERS IN CHINA

Welcome to East Ai Machinery Co., Limited! Proudly recognized as a premier supplier and manufacturer of hydraulic honed tubes in Wuxi, Jiangsu, China, we are committed to excellence in every aspect. For nearly three decades, our esteemed factory has specialized in the meticulous production and supply of honed tubes (also known as honed pipes), available in a diverse array of dimensions and crafted from premium materials including SAE1020, ST52, SAE1045, 4140, and stainless steels.

 

Spanning approximately 20,000 square meters, our comprehensive facility includes a dedicated hydraulic cylinder honed tube factory, alongside another for hard chrome-plated shafts and chrome-plated OD tubing. Our robust team consists of 180 highly skilled workers, with approximately 20 experts diligently overseeing quality control and technological advancements.

 

OUR ADVANTAGES

 

* Extensive and Accomplished Manufacturing Expertise: With a rich legacy extending over 15 years, our factory stands as a beacon of proficiency in crafting honed cylinder tubes (honed ID tubing).
* Cutting-Edge Manufacturing Equipment and Facilities: Our arsenal includes state-of-the-art machinery such as cold drawing machines, cold rolling machines, honing machines, skiving & roller burnishing machines, straightening machines, polishing machines, heat treatment furnaces, grinding machines, and cutting machines. To ensure peak performance, our adept engineers conduct routine maintenance, safeguarding the seamless operation of these assets.
* Premium Quality Raw Material: Sourced from renowned Chinese steel giants like TPCO, SHA STEEL, and BAO STEEL, our honed cylinder tubes benefit from superior-grade raw materials, ensuring unparalleled quality.
* Superior Precision: Our honed tubes are engineered to exacting specifications with precision tolerances meeting ISO standards H7, H8, H9, or H10, tailored to the dimensions and requests of our valued clients, ensuring impeccable precision for hydraulic cylinders.
* Dependable Packaging Solutions: Prior to delivery, each honed pipe is meticulously oiled with anti-rust oil. We protect the inner diameter with options such as plastic end caps or, per customer request, welded steel caps to safeguard during transit.
Our honed pipes are then carefully encased in seaworthy packaging, ranging from sturdy wooden cases to protective plastic bags, ensuring safe and secure delivery.
* Rigorous Quality Control: Maintaining stringent quality assurance, our dedicated QC team of over 10 professionals conducts comprehensive inspections on each honed cylinder tube before shipment. Evaluations include Chemical Analysis, Tensile Testing, Dimension Inspection, Roughness Measurement, Chrome Plating Thickness Assessment, Straightness Verification, among other specialized tests aligned with standards and customer specifications.
* Sophisticated Quality Management System: Our holistic Total Quality Management framework ensures all processes linked to product quality are meticulously controlled and optimized.

 

Our honed cylinder tubes have achieved international acclaim, serving hydraulic cylinder applications across diverse industries globally. Esteemed clients in the USA, Canada, Mexico, Colombia, Saudi Arabia, UAE, South Africa, Russia, Belarus, Thailand, Indonesia, Vietnam, Australia, Ukraine, Brazil, Turkey, Korea, New Zealand, Singapore, Kuwait, and beyond trust us for our stellar reputation and unparalleled product quality.

Product Description

HONED TUBE / HYDRAULIC CYLINDER TUBE BRIEF INTRODUCTION

Our honed tube, the crown jewel of hydraulic cylinder components, is celebrated across industries for its unparalleled readiness in hydraulic applications. It requires no additional internal diameter processing, making it the quintessential material for crafting high-performance hydraulic cylinders. Known also as honed ID tubing, its perfectly honed interior guarantees optimal functionality and reliability.

 

With a legacy spanning nearly 15 glorious years, our esteemed factory proudly crafts and supplies top-tier honed tubes and hydraulic cylinder tubes. Below is a comprehensive overview of our exceptional honed tubes.

 

OVERVIEW OF OUR HONED TUBES

PRODUCT NAME: HONED TUBE

ALSO KNOWN AS PRODUCT NAME: HONED TUBING / CYLINDER TUBE / CYLINDER TUBING / HONED CYLINDER TUBE / HYDRAULIC CYLINDER TUBING / HONED ID TUBING

Our robust honed tube for hydraulic cylinders is meticulously crafted from our proprietary cold drawn seamless tube (CDS tube), utilizing advanced techniques like honing or Skiving & Roller Burnishing process, ensuring superior smoothness and precision.

 

PRODUCT STANDARD:

Our honed hydraulic cylinder tubes are manufactured with utmost precision, adhering to esteemed standards such as ASTM A513, DIN 2391, DIN 1630, DIN 1629, EN10305-1, EN 10216-2, A 519, and more, tailored to meet our customer's specific requests.

 

SIZE RANGE:

Our honed tubes span an impressive size range-crafted with both metric and imperial dimensions-from I.D 30 mm to I.D 500 mm (1.5″ - 20″), with wall thickness options from 3 - 50 mm (1/8″ - 2″).

 

STEEL GRADES:

At EASTAI, we proudly offer honed tubes in a diverse array of carbon steel and stainless steel grades to meet every demanding application.

 

CARBON STEEL HYDRAULIC CYLINDER TUBING IS AVAILABLE WITH GRADES AS BELOW:

* SAE 1020
* SAE 1026
* SAE1030/1035
* E355, E255, E215, E235
* ST52.3, St35, ST 52.4, St 37.4

 

STAINLESS STEEL HONED TUBE CAN BE SUPPLIED IN GRADES AS BELOW:

* TP 304 / 304L
* TP316 / 316L
* TP 316Ti

For custom needs, we offer other steel grades of honed tube/honed pipe upon request to ensure complete satisfaction.

 

ADVANTAGES OF EASTAI'S HONED TUBE

* Precision at its finest, with high precision tolerances;
Our honed tubes achieve impeccable ID tolerance levels of H7, H8, H9, and more, expertly tailored to meet the unique specifications of our valued customers.
* Seamless tube engineered for supreme high-pressure resistance;
Crafted exclusively from seamless cold drawn tubes, our honed pipes boast remarkable reliability and performance under extreme pressures, making them the dependable choice for hydraulic cylinder applications.
* Unrivaled smoothness with high smooth inside surface;
Our honed pipes feature an exquisite Max Ra 0.4 microns ID finish (16Max Ra ID Finish), ensuring the ultimate in smoothness and operational efficiency.
* Flexibility in order quantity: catering to diverse needs, we accommodate even the smallest orders, producing and supplying as few as a single piece of hydraulic cylinder tubing.
* Exceptional Weldability: The weldability of our honed steel tubing is remarkably excellent. This feature significantly aids in the seamless manufacturing of the
cylinders, ensuring robust and reliable construction.

 

MAIN APPLICATIONS OF HYDRAULIC HONED TUBING

Honed tubing and SRB tubes (skived and roller burnished tubes) serve predominantly as cylinder tubes. These are integral for hydraulic and pneumatic cylinder applications, essential in both the creation and repair of hydraulic cylinders and pneumatic cylinders.

Due to the honed tube's precise dimensional tolerance and superior surface smoothness, this product is indispensable in applications demanding meticulous precision and a highly refined finish. Ideal uses include Precision Mechanical Tubing, Honed Cylinder Tubing, Hydraulic Cylinders, and Construction-use Multi Joint Tubes. They are also perfect for Steel Axis Pipes, Injection Machines, and Robotic Arms, among other sophisticated engineering solutions.

Size List

East Ai Machinery Co., Limited proudly delivers an extensive selection of honed hydraulic cylinder tubes in a complete array of metric and imperial dimensions, catering to diverse industrial needs with precision and expertise.

* Metric Size Honed Tubes: Our offerings range from I.D 30 mm to I.D 800 mm, with wall thickness varying between 3 mm and 50 mm, ensuring versatility and strength in every application.
* Imperial Size Honed Tubes/Inch Size Honed Pipe: Available dimensions include 1.5" ID to 30.0" Honed ID; Wall thickness options span from 1/8" to 2", perfectly designed for custom and standard specifications.
* Length: Our honed tubes are available in both random and fixed lengths, extending up to an impressive 14 meters, providing flexibility in design and installation.

Our customization services allow us to offer other metric honed tubing sizes tailored to our customer's specific requirements, ensuring perfect fit and functionality.

As a distinguished manufacturer and supplier of honed tubes in China, we specialize not only in metric formats but also offer a vast range of imperial sizes, meeting global standards with excellence.

Please find below the comprehensive chart list detailing the metric honed tubing sizes.
STANDARD SIZES AND IMPERIAL HONED TUBE STANDARD SIZES: A thorough guide to our precision-engineered tube offerings.

 

METRIC HONED CYLINDER TUBE SIZES: Precision-crafted tubes ensuring optimal performance for a myriad of hydraulic applications.

Inside diameter	Outside Diameter	Wall thickness	Length
mm	mm	mm	m
32	40	4	6
35	45	5	6
40	50	5	6
50	60	5	6
55	65	5	6
60	70	5	6
60	75	7.5	6
60	80	10	6
63	75	6	6
63	78	7.5	6
65	75	5	6
65	80	7.5	6
70	80	5	6
70	85	7.5	6
70	90	10	6
75	90	7.5	6
75	95	10	6
80	90	5	6
80	95	7.5	6
80	100	10	6
85	100	7.5	6
90	105	7.5	6
100	115	7.5	6
100	120	10	6
100	125	12.5	6
110	125	7.5	6
110	130	10	6
115	130	7.5	6
120	140	10	6
120	145	12.5	6
120	150	15	6
125	145	10	6
125	150	12.5	6
130	150	10	6
140	160	10	6
140	165	12.5	6
140	170	15	6
145	170	12.5	6
145	175	15	6
150	170	10	6
150	180	15	6
160	180	10	6
160	185	12.5	6
160	190	15	6
160	200	20	6
180	200	10	6
180	210	15	6
180	220	20	6
200	220	10	6
200	230	15	6
200	245	22.5	6
250	300	25	6

IMPERIAL HONED CYLINDER TUBING SIZES: Engineered to meet rigorous standards, our imperial tubes promise reliability and efficiency.

Inside Diameter	Outside Diameter	Wall Thickness	Weight / Foot
(Inch)	(Inch)	(Inch)	(Lbs.)
1	1.5	0.25	3.337
1.125	1.5	0.188	2.634
1.25	1.625	0.188	2.885
1.375	1.75	0.188	3.136
1.5	1.75	0.125	2.169
1.5	1.875	0.188	3.379
1.5	2	0.25	4.673
1.625	2	0.188	3.63
1.75	2	0.125	2.503
1.75	2.125	0.188	3.88
1.75	2.25	0.25	5.34
1.875	2.25	0.188	4.13
2	2.375	0.188	4.38
2	2.5	0.25	6.008
2	2.75	0.375	9.512
2	3	0.5	13.35
2.125	2.5	0.188	4.631
2.125	2.75	0.313	8.135
2.25	2.5	0.125	3.171
2.25	2.625	0.188	4.881
2.25	2.75	0.25	6.675
2.25	3	0.375	10.513
2.25	3.25	0.5	14.685
2.375	2.5	0.063	1.627
2.375	2.75	0.188	5.131
2.5	2.75	0.125	3.504
2.5	2.875	0.188	5.382
2.5	3	0.25	7.343
2.5	3.125	0.313	9.387
2.5	3.25	0.375	11.514
2.5	3.5	0.5	16.02
2.75	3.125	0.188	5.882
2.75	3.25	0.25	8.01
2.75	3.5	0.375	12.516
2.75	3.625	0.438	14.894
2.875	3.5	0.313	10.638
2.875	4	0.563	20.651
3	3.25	0.125	4.172
3	3.375	0.188	6.383
3	3.5	0.25	8.678
3	3.625	0.313	11.055
3	3.75	0.375	13.517
3	4	0.5	18.69
3	4.500*	0.75	30.038
3.25	3.5	0.125	4.506
3.25	3.625	0.188	6.884
3.25	3.75	0.25	9.345
3.25	3.875	0.313	11.89
3.25	4	0.375	14.518
3.25	4.25	0.5	20.025
3.5	3.75	0.125	4.839
3.5	3.875	0.188	7.384
3.5	4	0.25	10.013
3.5	4.125	0.313	12.724
3.5	4.25	0.375	15.519
3.5	4.5	0.5	21.36
3.5	4.75	0.625	27.534
3.625	4	0.188	7.653
3.75	4	0.125	5.173
3.75	4.25	0.25	10.68
3.75	4.5	0.375	16.521
4	4.375	0.188	8.385
4	4.5	0.25	11.348
4	4.625	0.313	14.393
4	4.75	0.375	17.522
4	5	0.5	24.03
4	5.25	0.625	30.872
4	5.750*	0.875	45.557
4.25	4.75	0.25	12.015
4.25	5	0.375	18.523
4.5	5	0.25	12.683
4.5	5.125	0.313	16.062
4.5	5.25	0.375	19.524
4.5	5.5	0.5	26.7
4.75	5.25	0.25	13.35
4.75	5.5	0.375	20.526
5	5.25	0.125	6.842
5	5.5	0.25	14.018
5	5.625	0.313	17.73
5	5.75	0.375	21.527
5	6	0.5	29.37
5	6.25	0.625	37.547
5.25	5.75	0.25	14.685
5.25	6	0.375	22.528
5.25	6.25	0.5	30.705
5.5	6	0.25	15.353
5.5	6.25	0.375	23.529
5.5	6.5	0.5	32.04
5.5	7.000*	0.75	50.063
5.75	6.5	0.375	24.531
5.75	6.75	0.5	33.375
6	6.25	0.125	8.177
6	6.375	0.188	12.39
6	6.5	0.25	16.688
6	6.625	0.313	21.068
6	6.75	0.375	25.532
6	7	0.5	34.71
6	7.25	0.625	44.222
6	7.500*	0.75	54.068
6	8.000*	1	74.76
6.25	6.75	0.25	17.355
6.25	7	0.375	26.533
6.25	7.25	0.5	36.045
6.5	7	0.25	18.023
6.5	7.25	0.375	27.534
6.5	7.5	0.5	37.38
6.5	7.75	0.625	47.559
6.5	8.000*	0.75	58.073
6.75	7.5	0.375	28.536
7	7.5	0.25	19.358
7	7.75	0.375	29.537
7	8	0.5	40.05
7	8.25	0.625	50.897
7	8.500*	0.75	62.078
7	9.000*	1	85.44
7.25	8	0.375	30.538
7.25	8.25	0.5	41.385
7.25	8.750*	0.75	64.08
7.5	8	0.25	20.693
7.5	8.25	0.375	31.539
7.5	8.5	0.5	42.72
7.5	9.000*	0.75	66.083
7.75	8.5	0.375	32.541
8	8.5	0.25	22.028
8	8.75	0.375	33.542
8	9	0.5	45.39
8	9.25	0.625	57.572
8	9.500*	0.75	70.088
8	10.000*	1	96.12
8.25	9	0.375	34.543
8.25	9.25	0.5	46.725
8.5	9	0.25	23.363
8.5	9.5	0.5	48.06
8.5	10.000*	0.75	74.093
8.75	9.75	0.5	49.395
9	10	0.5	50.73
9	10.25	0.625	64.247
9	10.500*	0.75	78.098
9.25	10	0.375	38.548
9.25	10.25	0.5	52.065
9.25	10.5	0.625	65.916
9.75	10.5	0.375	40.551
10	10.75	0.375	41.552
10	11	0.5	56.07
10	11.500*	0.75	86.108
10	11.750*	0.875	101.627
10	12.000*	1	117.48
10.5	12.000*	0.75	90.113
11	12	0.5	61.41
12	14.000*	1	138.84
14	16.000*	1	160.2

As a forefront leader in hydraulic cylinder honed tube supply, our factory employs 'Suitable To Hone' Steel Cold Drawn Seamless Tubes (CDS tubes). The honing process uses abrasive polishing stones and paper to achieve impeccably smooth ID surfaces, ensuring exacting ID dimensions.

 

Beyond honing, we utilize the SRB process (skiving and roller burnishing) to enhance the production of our honed tubing, resulting in unparalleled quality and consistency.

Ready-to-use honed tubes for hydraulic cylinders facilitate seamless production or repairs, providing precision without additional ID
processing.

HOW TO PURCHASE HYDRAULIC CYLINDER TUBE FROM US?

As a premier Chinese manufacturer and supplier of hydraulic cylinder honed tubes, we are committed to delivering both quality products and comprehensive technical support. Please reach out via the contact methods below for further assistance and information.

 

Specification

MAIN SPECIFICATIONS OF OUR HYDRAULIC CYLINDER TUBING

Experience the precision of our honed cylinder tubing, meticulously engineered with an immaculate inner diameter surface roughness ranging from Ra 0.2μm (RA8) to 0.4μm (RA16), ensuring unparalleled smoothness and quality for optimal performance.

Delve into the detailed excellence of our honed cylinder tube, where the chemical composition and mechanical properties of the principal steel grades are finely tuned to deliver superior strength and reliability.

Grade	Chemistry	%	Yield	Tensile	Elongation	Typical Hardness
			PSI	PSI	% in 2″ section	Min
1020	Carbon	0.150 - 0.200	60,000	70,000	10	B-75
	Mn	0.300 - 0.600
	P	0.035 Max
	S	0.035 Max
ST52.3	Carbon	0.140 - 0.180	75,000	85,000	15	B-80
	Si	0.150 - 0.300
	Mn	1.200 - 1.400
	P	0.020 max
	S	0.010 max

For your unique requirements, specifications of alternative steel grades can be tailored and provided upon request, guaranteeing a perfect fit for your diverse applications.

Tolerance

HONED TUBING TOLERANCE STANDARD (METRIC SIZE)

Our precision honed ID tubing can be crafted to perfection, featuring an impressive array of ID tolerances such as H7, H8, H9, H10, and H11, all customizable to meet your specific dimensions and requirements. Presented below are the comprehensive Inside Diameter (ID) tolerance values, meticulously defined for precision.

Inner Diameter	Inner Diameter Tolerance					Honed Tube Wall Thickness Tolerance
	H7	H8	H9	H10	H11
30	+ 0.021 0	+ 0.033 0	+ 0.052 0	+ 0.084 0	+ 0.130 0	±5%
> 30-50	+ 0.025 0	+ 0.039 0	+ 0.062 0	+ 0.100 0	+ 0.160 0
> 50-80	+ 0.030 0	+ 0.046 0	+ 0.074 0	+ 0.120 0	+ 0.190 0
> 80-120	+ 0.035 0	+ 0.054 0	+ 0.087 0	+ 0.140 0	+ 0.220 0
> 120-180	+ 0.040 0	+ 0.063 0	+ 0.100 0	+ 0.160 0	+ 0.250 0
> 180-250	+ 0.046 0	+ 0.072 0	+ 0.115 0	+ 0.185 0	+ 0.290 0
> 250-315	+ 0.052 0	+ 0.081 0	+ 0.130 0	+ 0.210 0	+ 0.320 0
> 315-400	+ 0.057 0	+ 0.089 0	+ 0.140 0	+ 0.230 0	+ 0.360 0

Outside Diameter Tolerance:

For the O.D tolerance of our honed steel tubing, we adhere to renowned standards such as DIN2391, DIN1629, DIN 1630, ASTM A513, A519, and are also equipped to accommodate bespoke customer requests, ensuring unparalleled accuracy.

Materials

OUR FACTORY SUPPLIES HONED TUBES, HONED CYLINDER TUBES, HYDRAULIC CYLINDER TUBE WITH VARIOUS MATERIALS

Known for their exceptional durability and versatility, hydraulic cylinder tubes, frequently referred to as honed tubes, are predominantly crafted from cold drawn seamless tubes or DOM tubes. These tubes are integral in fabricating hydraulic cylinder bodies and are often called hydraulic cylinder barrels. Our esteemed factory produces a wide array of steel grades, popular among consumers for their reliability and performance.

* Carbon steel ST52, ST52.3,
* Carbon steel E355
* Steel SAE 4140: also known as 42CrMo
* Steel 27SiMn
* Carbon steel SAE 1020, Chinese 20#, C20
* Stainless steel 304
* Stainless steel 316

EASTAI stands as a premier manufacturer and supplier of honed cylinder tubes, offering an extensive range of these high-quality materials to meet diverse industrial needs.

 

1. Honed cylinder tubes crafted from the robust material ST52 /ST52.3
2. Honed tubes made from the resilient material E355
3. Honed cylinder tubes utilizing the versatile material SAE 1020
4. SAE 4140 hydraulic cylinder barrel tubes, excelling in strength and durability
5. 27SiMn honed tubes, renowned for their high-performance capabilities
6. 20MnV6 hydraulic cylinder tubes, designed for exceptional precision and endurance
7. Stainless steel honed tubes, known for their corrosion resistance and longevity

 

HYDRAULIC CYLINDER TUBE MADE FROM MATERIAL ST52 /ST52.3

ST52 honed cylinder tubes, made from the esteemed steel grade ST52, adhere to the rigorous DIN 2391 standards. Equated with St52.3, these tubes are typically referred to as cold drawn seamless honed tubes, complying with DIN2391 /ST52-BKS. The BKS standard ensures stress relief through heat treatment, enhancing the tube's resilience. Below are the specifications of the steel ST52.

Grade	Chemistry	%	Yield	Tensile	Elongation	Typical Hardness
			min. Mpa	min. Mpa	% in 2″ section	Min
ST52.3	Carbon	0.140 - 0.180	420	580	15	B-80
	Si	0.150 - 0.300
	Mn	1.200 - 1.400
	P	0.020 max
	S	0.010 max

HONED TUBES FROM MATERIAL E355

 

E355 honed tubes embody excellence, crafted from steel grade E355 in accordance with EN 10305-1 standards. Often equated to ST52 / St52.3, these materials are recognized as cold drawn seamless honed tubes, meeting EN10305-1 /E355 +SR standards. The +SR designation signifies stress-relieved heat treatment, ensuring the honed tubing's structural integrity.

Outlined below are the specifications for the steel E355.

Grade	Chemistry	%	Yield	Tensile	Elongation	Typical Hardness
			min. Mpa	min. Mpa	% in 2″ section	Min
E355	Carbon	0.140 - 0.180	420	580	15	B-80
	Si	0.150 - 0.300
	Mn	1.200 - 1.400
	P	0.020 max
	S	0.010 max

Materials ST52 /ST52.3 and E355 are not only pivotal for honed tubes but also instrumental in producing hard chrome plated hollow bars, widely known as chrome plated OD tubes.

 

HYDRAULIC CYLINDER TUBE FROM MATERIAL SAE 1020

SAE 1020 cylinder tubes, crafted from the SAE 1020 steel grade, are equivalent to the Chinese steel grade 20#. This carbon steel is characterized by its low hardness and tensile strength, offering a cost-effective alternative to ST52 honed pipes, suitable for various applications.

Grade	Chemistry	%	Yield	Tensile	Elongation	Typical Hardness
			Min. Mpa	Min. Mpa	% in 2″ section	Min
1020	Carbon	0.150 - 0.200	375	485	15	B-75
	Mn	0.300 - 0.600
	P	0.035 Max
	S	0.035 Max

SAE 4140 HYDRAULIC CYLINDER BARREL TUBE

SAE 4140 honed tubes are exemplars of engineering prowess, crafted from SAE4140 steel grade. These cold drawn seamless honed tubes are tailored for high-pressure and heavy-duty applications, owing to the substantial tensile and yield strength of SAE 4140, which is comparable to the German steel grade 42CrMo.

 

BELOW IS THE CHEMICAL COMPOSITION OF 4140 MATERIAL.

SAE 4140 /42CrMo	C%	Si%	Mn%	P%	S%	Cr%	Mo%
Min	0.36	0.1	0.65			0.75	0.15
Max	0.44	0.4	1.1	0.04	0.04	1.2	0.35

Steel 4140 / 42CrMo is an exceptional choice for crafting Chrome Plated Bars. Renowned for its superior yield strength and impressive tensile strength, the 4140 chrome plated bar stands out as a top-tier option for scenarios demanding remarkable strength and durability. Its robust nature makes it an indispensable asset in applications where high strength is not just preferred, but essential.

FAQ

QUESTION 1: WHAT IS THE DELIVERY TIME OF HYDRAULIC HONED TUBES?

Answer: As one of the largest hydraulic honed tube suppliers in the area, we stock a lot ofdifferent sizes and materials of mother tubes for honed tubes, so normally our delivery time is 10-20 days depends on the quantity and size.

 

QUESTION 2: CAN YOU ENSURE THE QUALITY OF THE HYDRAULIC CYLINDER TUBE?

Answer: Yes, we execute Total Quality M anagement System in our hydraulic cylinder tube factory.We only use raw materials (mother tube) made in China top quality steel maker such as TPCOSha-Steel, Huaigang Special Steel and so on. And we will inspect every honed tube for hydrauliccylinder before packing, the honed cylinder tube will be supplied with mill test certificateaccording to EN 10204 /3.1.

 

QUESTION 3: IS YOUR COMPANY HYDRAULIC CYLINDER TUBE MANUFACTURERS OR TRADINGCOMPANY?

Answer: Yes, we are true hydraulic cylinder tube factory company located in Wuxi, Jiangsu, weare one of the professional hydraulic cylinder tube manufacturers in China, we welcomecustomers to come to visit our factory, Then you can see the details.

 

QUESTION 4: HOW CAN YOU PROTECT THE INSIDE SURFACE OF THE HONED TUBES FROMDAMAGE DURING TRANSPORTATION?
Answer: To protect the inner surface of the honed lD tubing, we will plug each tube with tubecaps on each end, the tube caps usually are plastic in green or yellow. And for big lD honed tubeswe can weld a steel cap on each tube end to protect thelD surface on customers request.

 

QUESTION 5: DID YOU EXPORT YOUR HONED PIPES TO OVERSEA COUNTRIES? AND WHAT ISYOUR MAIN OVERSEA MARKET?
Answer: Yes, as the one of the largest hydraulic cylinder honed tube suppliers in china, weexported our cylinder tubes to many customers in oversea countries, our main market includingUSA, Vietnam, Australia, Russia, UAE, Saudi Arabia, Canada, South Africa, Thailand, Brazil, Mexico,etc.