What are the available inner diameter tolerances?

We offer outstanding ID tolerance specifications including H7, H8, H9, H10, and H11 to meet specialized requirements.

What standards do your honed tubes conform to?

Our tubes conform to stringent industry standards such as ASTM A513, DIN 2391, DIN 1630, DIN 1629, EN10305-1, and EN 10216-2.

Smooth Bore Tube, Grade 20 for Reliable Fluid Pipe Applications

Name: Smooth Bore Tube, Grade 20 for Reliable Fluid Pipe Applications
Brand: East Ai Machinery Co., Limited
SKU: 2322667645

Jiangsu, ChinaEast Ai Machinery Co., Limited

US$15.00

1,000-1,999 kg

US$13.00

2,000-4,999 kg

US$12.00

5,000+ kg

Sample price:US$18.00/kg.Request sample

Product profile

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

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

Key features

High Precision Tolerance: Inner diameter tolerances up to H7, H8, H9, and H10 for superior hydraulic performance.

Smooth Surface Finish: Inner surface roughness Ra 0.2-0.4 microns, eliminating need for additional ID finishing.

Wide Material Selection: Available in Carbon Steel (SAE1020, ST52.3, E355) and Stainless Steel (304, 316L).

Flexible Customization: Customizable sizes from ID 30mm to 800mm, wall thickness, and specific steel grades.

Robust Quality Control: Strict inspection including chemical analysis, tensile testing, and mill test certificates.

Secure Packaging: Anti-rust oil treatment with plastic or steel caps to protect inner diameter during transit.

High Pressure Resistance: Seamless cold drawn construction ensures durability and safety under elevated pressures.

Fast Delivery: Normal delivery time is 10-20 days depending on quantity and size due to extensive stock.

Company profile

Importers and ExportersYears of Export ExperienceQuality AssuranceStandardized quality control

East Ai Machinery Co., Limited

Jiangsu, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Flexible customization CertifiedExport Year: 10 Years CertifiedNearest Port: Shanghai PortAverage Response Time: ≤5.89h

About Our Factory & Business Background

AddressLuqu Industry Park, Lunan Rd, No. 108, Wuxi, Jiangsu, China

Plant Area312 square meters

Number of Employees34

Registered Capital500,000 RMB

Terms of PaymentLC, T/T, D/P, PayPal, Western Union, Small-amount payment

International Commercial Terms(Incoterms)FOB, CIF, CFR, EXW

Average Lead TimePeak Season Lead Time: within 15 workdays Off Season Lead Time: within 15 workdays

Minimum Order Quantity1 Ton

Supply Chain Partners10

Our Production Capability & Technical Expertise

Main ProductsHoned Tube, Chrome Plated Bar, Chrome Bar, Aluminium Tube, Hydraulic Cylinder, Hydraulic Power Unit, Hydraulic Power Pack

Production Lines1

Production MachinesSawing Machine, Drilling Machine, Skiving Machine, Pressing Machine, Honing Machine

QA/QC inspectors1 people

Inspection Type for Finished ProductsRandom inspection(Visual inspection & Function inspection)

Inspection Method for Finished ProductsHave instructions and uniformly followed

R&D Engineers1 people

Traceability of Raw MaterialsYes

Our Industry Experience & Global Business Record

Year of Establishment2014-01-17

Main MarketsSoutheast Asia/ Mideast, Australia

Repeat Buyers Choice< 10%

Number of Foreign Trading Staff19

Overseas Agent/BranchNo

New Products Launched in Last yearNo

Our Certifications, Standards & Industry Recognition

Cooperated with Fortune 500No

Product Q&A

Q:What is the delivery time for hydraulic honed tubes?

We stock various sizes and materials of mother tubes, so normal delivery time is 10-20 days depending on quantity and size.

Q:How do you ensure the quality of the hydraulic cylinder tube?

We use top-quality raw materials from renowned Chinese steel makers and inspect every tube before packing, supplying mill test certificates according to EN 10204/3.1.

Q:Are you a manufacturer or trading company?

We are a true factory located in Wuxi, Jiangsu, and we welcome customers to visit our facility to see our manufacturing details.

Q:How is the inside surface protected during transportation?

We plug each tube with plastic caps (green or yellow) on each end. For large ID tubes, we can weld steel caps upon customer request.

Q:Do you export to overseas countries and what are your main markets?

Yes, we export globally. Our main markets include the USA, Vietnam, Australia, Russia, UAE, Saudi Arabia, Canada, South Africa, Thailand, Brazil, and Mexico.