En10305 St35 / E35 Precision Seamless Steel Tube For Hydraulic , Air - Power Cylinder manufacturer from China Wenzhou Zhongyuan Steel Industrial Co.,Ltd

En10305 St35 / E35 Precision Seamless Steel Tube For Hydraulic , Air - Power Cylinder

Place of Origin:

Zhejiang, China (Mainland)


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En10305 St35 / E35 Precision Seamless Steel Tube For Hydraulic , Air - Power Cylinder Description:<l

En10305 St35 / E35 Precision Seamless Steel Tube For Hydraulic , Air - Power Cylinder

Description:

Product Item No.: 001Precision-Cosco Steel
Standard: EN 10305-1 / DIN 2391
Material: ST35/E35, ST45, ST52/E355
OD: 10mm~219.1mm
Wall Thickness: 2mm~35mm
Application: Precision mechanical part for car and cylinder
Delivery condition: NBK (The last cold forming process is followed by annealing above the upper transformation point in a controlled astmosphere. ).
Package: In hexagonal shape bundles wrapped with strong steel trip 2MT/Bundle.
Quality Control:
Our quality control department consists of experienced technicians. These personnel strictly control the whole production procedure, from introduction of raw materials to finish products. They ensure high quality products for our customers.

Chemical composition
Item	Grade		Chemical composition.%
			C max	Si max		Mn				Pmax				S max
St35/E35	1.0308		0.17	0.35		≥0.40				0.025				0.025
St45	1.0408		0.21	0.35		≥0.40			0.025					0.025
St52/E355	1.0508		0.22	0.55		≤1.60			0.025					0.025
The following alloying may be added:Nb≤0.03%,Ti≤0.03%,V≤0.05%,Nb+TI+v≤0.05%
Mechanical properties
Category		Delivery state minimum value
item	grade	Gold finished (hard)(BK)		Gold finished (SOFT)(BKW)		Gold finished and stress-relieved(BKS)					annealed (GBK)		normalized(NBK)
		Rm Mpa	A%	Rm Mpa	A%	Rm Mpa	ReH Mpa	A%			Rm Mpa	A%	Rm Mpa		ReH	A%
1	St35/E235	480	6	420	10	420	315	14			315	25	340~470		235	25
2	St45	580	5	520	8	520	375	12			390	21	440~570		255	21
3	St52/E355	640	4	580	7	580	450f	10			450	22	490~630		355	22

Specifications

Designation A179/A179M-90a
Standard Specification for Seamless Cold-Drawn Low-Carbon Steel Heat-exchnager
And Condenser Tubes

This specification covers

1.1 Minimum-wall-thickness,seamless cold-drawn low-carbon steel tubes for tubular heat
ex-changer,condensers,and similar heat transfer apparatus
1.2 Outside diameter 1/8 to 3 in. [ 3.2 to 76.2mm ]

Ordering information