Hydraulic Steel Tube

Type: Seamless Material: Carbon Steel Usage: Hydraulic/Automobile Pipe Origin: China Technique: Cold Drawn Surface Treatment: Oiled Section Shape: Round Standard: EN 10305-1
Steel grade: E215, E235, E355, E255, E410
Size: OD (4-320mm) X WT (0.5-15mm)
Application: Used in hydraulic system, automobile, locomotive and military industry.

Delivery conditions:
+C (BK): Glossy hard;
+LC (BKW): Glossy soft;
+SR (BKS): Glossy soft (tempered);
+A (GBK): Without scale, soft;
+N (NBK): Normalized
 

OD Tolerance	4-30mm	31-40mm	41-50mm	51-60mm	61-70mm	71-80mm	81-90mm	91-100mm
	±0.08mm	±0.15mm	±0.20mm	±0.25mm	±0.30mm	±0.30mm	±0.40mm	±0.45mm
WT Tolerance	±10%

 
Chemical Composition

Grade	C	Si	Mn	P	S	Al Min	V	Others
E215	≤ 0.1	≤ 0, 05	< 0.70	≤ 0, 025	≤ 0, 025	0, 025	-	-
E235	≤ 0, 17	≤ 0, 17	< 1, 20	≤ 0, 025	≤ 0, 025	-	-	-
E355	≤ 0, 22	≤ 0, 55	< 1, 60	≤ 0, 025	≤ 0, 025	-	-	-
E255	≤ 0, 21	≤ 0, 35	0, 40-1, 10	≤ 0, 025	≤ 0, 025	-	-	-
E410	0, 16-0, 22	0, 10-0, 50	1, 30-1, 70	≤ 0.03	≤ 0.035	0, 010-0, 060	0, 08-0, 15	Nb< 0, 07; Ti< 0, 05

 
Mechanical Properties

Grade	Mechanical properties (Min. )
	+C		+LC		+SR			+A		+N
	R m	A%	R m	A%	R m	R eH	A%	R m	A%	R m	R eH	A%
	MPa		MPa		MPa	MPa		MPa		Mpa	Mpa
E215	430	8	380	12	380	280	16	280	30	290 - 430	215	30
E235	480	6	420	10	420	350	16	315	25	340 - 480	235	25
E355	640	4	580	7	580	450	10	450	22	490 - 630	355	22
E255	580	5	520	8	520	375	12	390	21	440 - 570	255	21
E410	750	4	620	8	690	590	12	520	22	550- 700	410	22

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