St52 C20 High Precision Cold Drawn H8 Tolerance Honed Tube

• Customization: Available
• Type: Seamless
• Technique: Cold Drawn
• Material: Carbon Steel, St52, E355, Sktm13c, C20
• Surface Treatment: Oiled
• Usage: Hydraulic/Automobile Pipe, Machinery Industry, Chemical Industry, Mining
• Section Shape: Round
• ID Range: 26-800mm
• Straightness: 0.5/1000mm
• Transport Package: Wooden Case, Container
• Specification: 20GP, 40HQ
• Trademark: HYDSTEELS
• Origin: Wuxi, China
• HS Code: 8483109000
• Production Capacity: 20000tons/Year

Product Description

Description
1.Professional manufacturer of Honed tube & chrome rod, founded in 2004, one of biggest manufacturer in China. 
2.Honing Process is a special form of grinding and a machining method in finishing.
This process can not only remove the large machining allowance, but also is an effective machining method to improve the dimensional precision, geometric shape precision and surface roughness of parts.

1. Product Show

Honed tube for hydraulic cylinder
Standard	DIN2391, EN10305, JIS G3445 ASTM A519 GB/T 8713
Material	ST45, ST52, E355, E355SR, STKM13C, SAE1026,20#, Q235B, CK45…
Heat treatment	BK+S
Specification	Outer Diameter(mm)	Inner diameter(mm)
	40-480mm	30-400
I.D Tolerance	H8-H9
Length	3-9m(Customers usually choose the 4-5.8(m)
Straightness	1-1000
ID roughness	RA 0.4micron(max)
Technology	Honed& SRB (SKIVED AND ROLLER BURNISHED)
Scope	Honed tube for hydraulic cylinder ,swivel crane, injection machine and construction machine application

2. Product Pictures

3.Material & Chemical Composition
 

20# 45# Q345B 16Mn 25Mn 27SiMn 42SiMn 42CrMO

Material	C	Si	Mn	S(≤)	P(≤)	Cr	Ni	Mo	Other
20#	0.17-0.23	0.17-0.37	0.35-0.65	0.035	0.035	≤0.25	≤0.30	ti:0.02-0.20	Cu≤0.25
45#	0.42-0.50	0.17-0.37	0.50-0.80	0.035	0.035	≤0.25	≤0.30	ti:0.02-0.20	Cu≤0.25
Q345B	≤0.20	≤0.55	1.00-1.60	0.040	0.040	V:0.02-0.15	Nb:0.015-0.06		Alt≥0.015
16Mn	≤0.20	≤0.55	1.00-1.60	0.045	0.045	V:0.02-0.15	Nb:0.015-0.06		16Mn
25Mn	0.22-0.30	0.17-0.37	0.70-1.00	0.035	0.035	≤0.25	≤0.25
27SiMn	0.24-0.32	1.10-1.40	1.10-1.40	0.030	0.030
42SiMn	0.39-0.45	1.10-1.40	1.10-1.40	0.030	0.030
42CrMo	0.38-0.45	0.50-0.80	0.50-0.80	0.025	0.025	0.90-1.20		0.15-0.25

4.Dimension tolerance
 

Inner Diameter (mm)	ID Tolerance(mm)
	H8	H9	H10	H11
30	+0.021/0	+0.038/0	+0.084/0	+0.130/0
>30-50	+0.025/0	+0.039/0	+0.100/0	+0.160/0
>50-80	+0.030/0	+0.046/0	+0.120/0	+0.190/0
>80-120	+0.035/0	+0.054/0	+0.140/0	+0.220/0
>120-180	+0.040/0	+0.063/0	+0.160/0	+0.250/0
>180-250	+0.046/0	+0.072/0	+0.185/0	+0.290/0
>250-315	+0.052/0	+0.081/0	+0.210/0	+0.320/0
>315-400	+0.057/0	+0.089/0	+0.230/0	+0.360/0

5.Delivery Condition
 

BK	BKW	BKS	GBK	NBK	Q+T
+C	+LC	+SR	+A	+N
Cold rolled	Cold drawn	Stress relieved	Annealed	Normalized	Quenched+ Tempered

6.Processing Method
 


7. Packing



8.Company Show

Factory was established in 2003, operation under modern management system and technologies, ISO9001 certificated, It covers an area of 40, 000 sq. Meters.

All processing control and fully production facilities, also owned cold-drawn machine and heat treatment furnace.

There are 60sets of advanced equipment and 70+ skilled technical workers.

As one of the biggest honed tube, chrome rod manufacturer we engrossed in this field 15+ years, market cover 20+ countries annual output over 20, 000tons.



9. Our advantage

>Rich manufacturing experience:15+years professional manufacturer & supplier of honed tube, Chrome plated rod. 
>Experience in Vietnam, Thailand, Brazil, Egypt, Saudi Arabia, UAE, Russia, Singapore market.
>ISO9001:2008, SGS, BV, CNAS Certificated. 
>Biggest manufacturer & wholesaler in local market. 
>7*24 at your service, on time respond. 
>One-stop collection.
> Fast delivery.
>100% inspection for everyone products in each processing.
>One stop collection for Honed tube, Chrome rod.

10.FAQ

 1.Q :Are you a factory?
    A:  Yes, we are.
 2 Q: How long is your delivery time? 
    A: If we have stock, we can send goods within 20days. If not, we will deliver goods within 30-45  days
 3.Q: Do you provide samples? Is it free or extra? 
    A: Yes, we The inventory can be provided free of charge, but the freight will need to be borne by you
4. Q: What is your terms of payment? 
    A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance, balance before shippment.
5. Q: Is your product price reasonable?     
    A: Our offer is reasonable and realistic. It comes in line with the prevailing market.
6.Q: What is your main payment item?
   A: T/T and L/C, L/C,D/P ,O/A,Western Union ,PayPal
7.Q :Which countries do you export to?                  
   A: Russia, Argentina, South Africa, Indonesia, Vietnam, India and so on.

11.Contact Us 
Frank