Honed Tube SRB Tube Cylinder Barrel Manufacturer China

Name: Honed Tube / Skived & Roller Burnished (SRB) Tube / Cylinder Barrel
Brand: HEVO Steel
SKU: HEVO-HT-SRB-001

Precision cylinder tubes

Honed Tube SRB Tube Cylinder Barrel Manufacturer China — 20+ Years, Direct Factory

precision and surface quality in one step

HEVO Steel is a leading factory with over 20 years of experience in manufacturing high-quality honed tubes, skived and roller burnished (SRB) tubes, and cylinder barrels. Our products are trusted by hydraulic, pneumatic, and industrial equipment manufacturers worldwide for their outstanding precision, durability, and performance. Cold drawn seamless precision cylinder tubes for hydraulic & pneumatic applications. ID 20–350 mm, Ra ≤ 0.3 μm, H8 tolerance. Source factory in Shandong — no middlemen, mill-direct pricing.

EN 10305-1 EN 10305-2 DIN 2391 ISO 286 H8 ISO 9001:2015 EN 10204 3.1 Factory audit welcome Own QC laboratory 2,000+ tons/month capacity Export since 2011

Source factory in Shandong, China — direct from the mill

20+ years manufacturing precision tubes. Own pilgering, cold drawing, cold rolling, honing, skiving, burnishing & chrome plating lines. We do not resell — we make.

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01 Technical Specifications

Complete data sheet — EN 10305-1 / EN 10305-2, all honed tube SRB tube cylinder barrel are manufactured at our China factory

Parameter	Details
Product	Cylinder tubes – honed, or skived & roller burnished Cold drawn seamless precision tubes for hydraulic & pneumatic cylinder bores
Standard	EN 10305-1 \| EN 10305-2DIN 2391 \| ISO 286-2 \| EN ISO 4287 Other international standards available on request (ASTM, JIS, GOST)
Dimensions OD × WT	30 × 5 mm to 600 × 50 mm Also available in inch sizes · Non-standard dimensions made to drawing
Inside diameter ID	20 mm – 500 mm (custom drilling on request)
Tolerances	Outside diameter — per EN 10305-1/-2 Inside diameter — H8 per ISO 286-2 H7 (tighter) or H9/H10 (looser) available on request
Longueurs	Standard 3 – 10 m · Max 12 m for honed · Max 16 m for cold drawn Fixed / cut-to-length per customer requirement
Delivery conditions	+SR (BKS) — cold finished & stress-relief annealed +N (NBK) — normal annealed BK — cold drawn (hard) GBK — soft annealed Q+T — quenched + tempered
Steel grades	E355 (standard) ST52 C20/E255 C45E/45# 27SiMn \| 25Mn ASTM A106 SS 304/316
Surface finish	Ra max. 0.3 μm per EN ISO 4287 Skived & burnished: Ra ≤ 0.4 μm · Honed: Ra 0.2–0.8 μm · Straightness ≤ 0.5 mm/1000 mm
Certification	EN 10204 type 3.1 (standard) Chemistry + mechanicals + heat number · Type 3.2, ISO 9227, PED 2014/68/EU on request
Emballage	Anti-rust oil inside bore + plastic caps both ends + ISPM-15 wooden export crates
Shipping terms	EXW · FOB (Qingdao/Shanghai) · CIF · FCA · DAP · DDP Full export documentation for global customs clearance
Standards reference: EN 10305-1 (iso.org) · ISO 286-2 (iso.org) · EN 10204 (european-standards.org)

02 Material Properties

Mechanical & chemical data — all with EN 10204 type 3.1;

Tube de vérin Composition chimique du tube de vérin	Tube de vérin hydraulique mécanique Propriétés
Acier Grade	C	Si	Mn	P	S	Cr	Ni	Cu	V	Al	Finition à froid (dur) (BK)	Etiré à froid + Détaché sous contrainte (BK+S)	Dureté	Valeur d'impact
%	T.S δ bN/mm2	Élongation δ 5%	T.S δ bN/mm2	Y.S δ bN/mm2	Élongation δ 5%	J
20#	0.17-0.23	0.17-0.37	0.35-0.65	≤0.035	≤0.035	≤0.25	≤0.30	≤0.25	/	/	≥550	≥8	≥520	≥400	≥15	170	/
C45E/45#	0.42-0.50	0.17-0.38	0.50-0.80	≤0.035	≤0.035	≤0.25	≤0.30	≤0.25	/	/	≥680	≥5	≥630	≥520	≥12	190	/
Q355B / ST52	≤0.20	≤0.50	≤1.70	≤0.035	≤0.035	≤0.30	≤0.50	≤0.30	/	/	≥660	≥8	≥620	≥520	≥15	190	/
Q355D	≤0.18	≤0.50	≤1.70	≤0.030	≤0.025	≤0.30	≤0.50	≤0.30	≤0.15	≥0.015	≥660	≥8	≥620	≥520	≥15	190	≥27(-20℃)
Q355E	0.12-0.18	0.2-0.5	1.2-1.7	≤0.025	≤0.025	≤0.30	≤0.50	≤0.00	0.04-0.15	≥0.02	≥660	≥8	≥620	≥520	≥15	≥190	≥27(-40℃)
25Mn	0.24-0.32	1.10-1.40	1.10-1.40	≤0.035	≤0.035	≤0.30	≤0.30	≤0.20	/	/	≥640	≥8	≥620	≥510	≥15	190	/
27SiMn	0.22-0.29	0.17-0.37	0.70-1.0	≤0.035	≤0.035	≤0.25	≤0.30	≤0.25	/	/	≥780	≥5	≥700	≥580	≥10	220	/
E355	≤0.22	≤0.55	≤1.60	≤0.025	≤0.025	/	/	/	/	≥0.02	≥700	≥8	≥650	≥580	≥15	195	≥27(-20℃)
SAE 1026	0.22-0.28	≤0.30	0.6-0.9	≤0.035	≤0.025	≤0.20	≤0.30	≤0.35	/	/	≥640	≥8	≥620	≥510	≥15	≥190	/
E460	≤0.22	≤0.60	1.20-1.60	≤0.030	≤0.030	≤0.030	≤0.030	≤0.35	≤0.20	≥0.02	/	/	≥690	≥620	≥15	≥550	/
4130	0.28-0.33	0.15-0.35	0.40-0.60	≤0.040	≤0.040	0.80-1.10	/	/	/	/							/
4140/42CrMo	0.36-0.43	0.15-0.35	0.75-1.00	≤0.040	≤0.040	0.80-1.10	/	/	/	/							/
E470	0.16-0.22	0.10-0.50	1.30-1.70	≤0.030	≤0.035	/	/	/	0.08-0.15	/	/	/	≥710	≥590	≥15	/	/
P460	≤0.20	≤0.60	1.00-1.70	≤0.025	≤0.015	≤0.30	≤0.80	≤0.70	≤0.20	≥0.02	/	/	≥710	≥590	≥15	≥190	≥27
P620	≤0.20	≤0.60	1.00-1.70	≤0.025	≤0.015	≤0.30	≤0.80	≤0.30	≤0.20	≥0.02	/	/	≥730	≥630	≥15	≥220	≥27

Tube de vérin Composition chimique du tube de vérin

Tube de vérin hydraulique mécanique Propriétés

Acier Grade

Finition à froid (dur) (BK)

Etiré à froid + Détaché sous contrainte (BK+S)

Dureté

Valeur d'impact

T.S δ bN/mm2

Élongation δ 5%

T.S δ bN/mm2

Y.S δ bN/mm2

Élongation δ 5%

20#

0.17-0.23

0.17-0.37

0.35-0.65

≤0.035

≤0.25

≤0.30

≤0.25

≥550

≥8

≥520

≥400

≥15

170

C45E/45#

0.42-0.50

0.17-0.38

0.50-0.80

≤0.035

≤0.25

≤0.30

≤0.25

≥680

≥5

≥630

≥520

≥12

190

Q355B /
ST52

≤0.20

≤0.50

≤1.70

≤0.035

≤0.30

≤0.50

≤0.30

≥660

≥8

≥620

≥520

≥15

190

Q355D

≤0.18

≤0.50

≤1.70

≤0.030

≤0.025

≤0.30

≤0.50

≤0.30

≤0.15

≥0.015

≥660

≥8

≥620

≥520

≥15

190

≥27(-20℃)

Q355E

0.12-0.18

0.2-0.5

1.2-1.7

≤0.025

≤0.30

≤0.50

≤0.00

0.04-0.15

≥0.02

≥660

≥8

≥620

≥520

≥15

≥190

≥27(-40℃)

25Mn

0.24-0.32

1.10-1.40

≤0.035

≤0.30

≤0.20

≥640

≥8

≥620

≥510

≥15

190

27SiMn

0.22-0.29

0.17-0.37

0.70-1.0

≤0.035

≤0.25

≤0.30

≤0.25

≥780

≥5

≥700

≥580

≥10

220

E355

≤0.22

≤0.55

≤1.60

≤0.025

≥0.02

≥700

≥8

≥650

≥580

≥15

195

≥27(-20℃)

SAE 1026

0.22-0.28

≤0.30

0.6-0.9

≤0.035

≤0.025

≤0.20

≤0.30

≤0.35

≥640

≥8

≥620

≥510

≥15

≥190

E460

≤0.22

≤0.60

1.20-1.60

≤0.030

≤0.35

≤0.20

≥0.02

≥690

≥620

≥15

≥550

4130

0.28-0.33

0.15-0.35

0.40-0.60

≤0.040

0.80-1.10

4140/42CrMo

0.36-0.43

0.15-0.35

0.75-1.00

≤0.040

0.80-1.10

E470

0.16-0.22

0.10-0.50

1.30-1.70

≤0.030

≤0.035

0.08-0.15

≥710

≥590

≥15

P460

≤0.20

≤0.60

1.00-1.70

≤0.025

≤0.015

≤0.30

≤0.80

≤0.70

≤0.20

≥0.02

≥710

≥590

≥15

≥190

≥27

P620

≤0.20

≤0.60

1.00-1.70

≤0.025

≤0.015

≤0.30

≤0.80

≤0.30

≤0.20

≥0.02

≥730

≥630

≥15

≥220

≥27

03 Manufacturing Process & Factory Credentials

Our honed tube SRB tube cylinder barrel production line, 6-stage production flow · Own QC laboratory · Shandong, China — verified source factory

Raw Material

Seamless billet
incoming inspection

Piercing & Rolling

Pipe piercing
cold rolling

Surface Treatment

Acid wash
phosphating

Cold Drawing

Chain drawing
precise OD/WT

Honing / SRB

Ra ≤ 0.3 μm
H8 tolerance

QC & Export

EN 10204 3.1
FOB ready

Real source factory

Own facility in Shandong. Video tour via WhatsApp / Zoom before order. On-site audit welcome.

Mill-direct pricing

No trading company markup. Quote = raw material + processing only.

Full certification

EN 10204 3.1 standard. Type 3.2, ISO 9227, PED 2014/68/EU on request.

Custom dimensions

Built to your drawing — non-standard OD, ID, length, material, tolerance.

Global export experience

FOB Qingdao / Shanghai. DDP to USA, EU, AU, ME, CIS countries.

English-speaking team

Reply within 24 h weekdays. WhatsApp, WeChat, email all supported.

04 Applications

Industries & equipment types served for honed tube SRB tube cylinder barrel

Hydraulic cylinders

HEVO Steel provides ultra-smooth honed and SRB tubes to ensure precise piston movement, maximum seal life, and leak-free high-pressure performance.

Pneumatic cylinders

Our high-precision tubes minimize internal friction, delivering fast, reliable, and consistent actuation for automated pneumatic systems.

Cranes & hoists

Built for heavy lifting, HEVO Steel cylinder barrels offer the exceptional yield strength and structural integrity required for critical load-bearing equipment.

Construction machinery

Rugged and durable, our SRB tubes are engineered to withstand extreme pressure, shock loads, and harsh environments in excavators and loaders.

Forklifts & jacks

We supply precision-crafted tubes for compact lifting mechanisms, ensuring smooth, stable, and repetitive vertical load handling.

Agricultural equipment

Engineered for the field, our hydraulic barrels resist wear and perform reliably in tractors, harvesters, and heavy-duty farm attachments.

Dump trucks & trailers

HEVO Steel delivers robust telescopic cylinder tubes designed specifically for multi-stage lifting and demanding tipping applications.

Oil, gas & power plants

High-performance tubular components manufactured to strict tolerances for valve actuators, drilling rigs, and heavy infrastructure in the energy sector.

05 Weight Calculator & Enquiry Builder

Partner with a factory that engineers for centuries, not quarters. HEVO Steel: Precision-Crafted Honed Tube SRB Tube Cylinder Barrel Engineered for Excellence

06 Frequently Asked Questions

Partner with a factory that engineers for centuries, not quarters. HEVO Steel: Precision-Crafted Honed Tube SRB Tube Cylinder Barrel Engineered for Excellence

Both achieve a precision bore surface for hydraulic cylinders, but the process differs. Honing uses bonded abrasive stones to refine the inner bore — ideal for smaller diameters or when very tight Ra tolerances (below 0.2 μm) are required. Skiving & roller burnishing (SRB) is a two-in-one pass: a skiving knife removes material, then rollers cold-work the surface to Ra ≤ 0.4 μm. SRB is faster and more cost-effective for production volumes above 1 ton. Both methods meet H8 tolerance per ISO 286-2 and are suitable for cylinder seals rated up to 350 bar.

E355 (ST52) is our standard and most recommended grade for hydraulic cylinder tubes — it offers yield strength ≥ 355 N/mm², good weldability, and excellent machinability. For higher dynamic loads, 27SiMn (TS ≥ 760 N/mm²) is preferred in mining and heavy construction. C20 / ST45 suits lighter-duty pneumatic applications. CK45 / 45# is used when the tube also serves as a structural load-bearing component. Stainless grades SS304 and SS316 are available for corrosive environments. All materials supplied with EN 10204 type 3.1 mill certificate.

For standard sizes (E355, OD 40–200 mm, H8 tolerance), the MOQ is 1 metric ton. For custom dimensions, non-standard materials, or cut-to-length orders, the typical MOQ is 3 metric tons to justify tooling and setup. Trial sample pieces (200–500 mm lengths) are available before bulk order at no extra charge — customer pays shipping. Standard production lead time is 25–35 days from purchase order confirmation. Rush orders (15–20 days) are possible for in-stock sizes at a premium.

Every shipment includes an original EN 10204 type 3.1 mill test certificate covering: chemical composition, mechanical properties (tensile strength, yield strength, elongation), hardness, and heat/lot number traceable to the production batch. On request, we provide: EN 10204 type 3.2 (third-party witnessed inspection), ISO 9227 salt spray test report, PED 2014/68/EU compliance declaration for pressure equipment applications, and dimensional inspection reports. HEVO Steel holds ISO 9001:2015 certification.

We welcome buyer verification. We can provide: our Chinese business license (营业执照) showing manufacturing scope, our ISO 9001:2015 certificate issued by a third-party body, and export records from Chinese customs (available through verification services like Panjiva or ImportGenius). We offer live factory video tours via WhatsApp or WeChat before any order, and welcome on-site factory audits — our facility is located in Shandong Province, approximately 1.5 hours from Qingdao Jiaodong International Airport.

We support all major Incoterms 2020: EXW (ex-works, buyer arranges freight), FCA (free carrier at our facility), FOB Qingdao or Shanghai (most common for container shipments), CIF (cost, insurance, freight to destination port), DAP and DDP (door-to-door, duty paid — available for USA, EU, Australia, UAE, and most CIS countries). We have established freight forwarder partnerships and can assist with export documentation including commercial invoice, packing list, bill of lading, certificate of origin (CO), and fumigation certificate for wooden crating (ISPM-15 compliant).

Yes. We manufacture to customer drawings and non-standard specifications. Custom options include: non-standard OD/WT combinations outside the EN 10305 range, tighter ID tolerances (H7 or tighter), surface finish below Ra 0.2 μm, lengths up to 12 m for honed and up to 16 m for cold drawn, special heat treatment conditions (Q+T, case hardening), and secondary operations such as chamfering, threading, or coating. Minimum lead time for custom orders is 35–45 days. Please provide your drawing or specification sheet for a detailed quotation.