[email protected]

EN 10305-1 / DIN 2391 cold drawn seamless steel pipe

Home >

Steel Pipe

Galvanized steel pipe

Hot Rolled Steel pipe

Pipe fittings

Hot products

Top 500

One of the Top 500 enterprises in China foreign trade

QCCO was approved as a member of “China Association for Contracting Projects Abroad “and granted a membership certificate on Sep 28,2005; “Credibility Rating AAA certificate in Foreign Trade” was granted to QCCO by China Shippers’ Association

EN 10305-1 / DIN 2391 cold drawn seamless steel pipe

Home > steeltube

EN 10305-1 / DIN 2391 cold drawn seamless steel pipe

Application:

for Atuo;for machinery use; Oil cylinder tube; Motorcycle shock reducer steel tubes; Auto shock reducer inner cylinder.

Size(mm):

O.D.:10-324mm ; W.T.:1-30mm; L：max 14000

Precision Phosphated Steel Tube

EN 10305-1 / DIN 2391 cold drawn seamless steel pipe

Precision seamless phosphated carbon steel tube:
  Standard:
   DIN 2391, EN 10305-1, EN 10305-4
  Materials:
  ST35, ST37.4, ST37, ST45, ST52, ST52.4, E235, E255, E355.
  Delivery condition:
   Black Phosphated after bright annealed.

Grade and Chemical Composition(%):

Brand	Chemical Composition(%)
Brand	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	-

  Size Range:
   Outer Diameter: 4 mm - 60 mm    Wall thickness: 0.5 mm - 10 mm
  Main Features:
   Bright black color is homogeneously distributed on the tube surface. with good anti-rust and corrosion resistance performance.
  Main Application:
  Used in hydraulic systems, mechines and facilities, other applications which require good rust proof and corrosion resistance performance.

Mechanical Properties(Mpa):

Steel grade	BKW		BK		BKS			GBK		NBK
Steel grade	Tensile Strength ReH N/mm min	Elongation% min	Tensile Strength ReH N/mm min	Elongation% min	Tensile Strength ReH N/mm min	Yield strength Rm N/mm min	Elongation % mi	Tensile Strength ReH N/mm min	Elongation % min	Tensile Strength ReH N/mm min	Yield strength Rm N/mm min	Elongation % min
St35	480	6	420	10	420	315	14	315	25	340-470	235	25
St45	580	5	520	8	520	375	12	390	21	440-570	255	21
St52	640	4	580	7	580	420	10	490	22	490-630	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	22