Product Details

Product Description

Precision tubes EN 10305

Precision steel tubes are characterized by:

special dimensional accuracy of outer and inner diameters or wall thickness
smooth surface resulting from drawing technology
defined mechanical properties
large dimensional variety

We have in our warehouse offer the following precision tubes:

DIN 2391-1/EN 10305-1
GB/T 3639 Cold drawn or cold rolled precision seamless steel tubes GB/T 8713 inside precision seamless tubes for hydraulic pressure and pneumatic services
Application:	for Atuo usd for machinery use; Oil cylinder tube; Motorcycle shock reducer steel tubes; Auto shock reducer inner cylinder
Size(mm):	O.D.:6.0-224.0 W.T.:1-15 L:max 12000

Grade and Chemical Composition(%):

Grade	Chemical Composition(%)
Grade	C max	Si max	Mn	P max	S max
St 35	0.17	0.35	≥0.40	0.025	0.025
St 45	0.21	0.35	≥0.40	0.025	0.025
St 52	0.22	0.55	≤1.60	0.025	0.025

Steel grade		Chemical Composition(%)
Steel name	Steel number	C max	Si max	Mn	P max	S max	Al min
E215	1.0212	0.10	0.05	0.70	0.025	0.025	0.025
E235	1.0308	0.17	0.35	1.20	0.025	0.025	-
E355	1.0580	0.22	0.55	1.60	0.025	0.025	-

Mechanical Properties(Mpa)

Steel grade	BK		BKW		BKS			GBK		NBK
Steel grade	Tensile strength Rm N/mm min	Elongation % min	Tensile strength Rm N/mm min	Elongation % min	Tensile strength Rm N/mm min	Yield strength ReH N/mm min	Elongation % min	Tensile strength Rm N/mm min	Elongation % min	Yield strength ReH N/mm min	Elongation % min
St35	480	6	420	10	420	315	14	315	25	235	25
St45	580	5	520	8	520	375	12	390	21	235	21
St52	640	4	580	7	580	420	10	490	22	355	22

Steel grade		Minimum values for the delivery condition
Steel name	Steel number	+ C		+ LC		+ SR			+ A		+ N
Steel name	Steel number	Rm Mpa	A%	Rm Mpa	A%	Rm Mpa	ReH Mpa	A%	ReH Mpa	A%	Rm Mpa	ReH Mpa	A%
E215	1.0212	430	8	380	12	380	280	16	280	30	290-430	215	30
E235	1.0308	480	6	420	10	420	350	16	315	25	340-480	235	25
E355	1.0580	640	4	580	7	580	450	10	450	22	490-630	355	2

Packaging & Shipping

seaworthy packing, in bundles, worth wooden cases, standard packing or up to your requirement.

seamless cold-drawn - EN 10305-1 (DIN 2391-1+2)

application:

automotive industry, machine and equipment building

grade:

-	E 215	St30Al
-	E 235	St35
-	E 355	St52

delivery state:

+ C (BK drawn for shine/hard)
+ N (NBK normalized)

trade length:

4.000 up to 7.000 mm

outer diameter:

Ø 4,0 up to 165,0 mm

wall thickness:

0,5 mm up to 10,0 mm

seamless cold-drawn HPL - EN 10305-4 (DIN 2391 / C+DIN 1630+DIN 2445-2)

application:

hydraulic and pneumatic elements

grade:

-	E235	St37.4
-	E355	St52.4

delivery state:

+ N (NBK normalized)

surface:

phosphatized, non-phosphatized, electrolytic zinc coated and chromated
types: yellow or blue-white

trade length:

6.000 up to 6.050 mm

outer diameter:

Ø 4,0 up to 75,0 mm

wall thickness:

0,5 up to 12,5 mm

marking:

running marking along whole tube

additional test:

eddy current test

Company Information

Liaocheng City Kuncheng Steel Pipe Co., Ltd.

we are professional and experienced supplier of steel products in china. We will provide you with high quality and low price, and we also offer good service. If our products can meet your needs, please contact us freely. We are looking forward to cooperating with you, and welcome your inquiry!

If you are interested in our seamless steel pipe,please contact me immediately.So we can give you a reply as soon as possible with the best quality and reasonable price.

Tel(Fax):0086-635-293066

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