Name: EN10305-1 E235+N Precision Seamless Tube For Automobile Nbk Surface
Brand: Yuhong Group Co.,Ltd
SKU: E235+N,ST37.4,ST52.4
Price: 100000.00 USD
Availability: InStock

Yuhong Holding Group Co.,LTD

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EN10305-1 E235+N Precision Seamless Tube For Automobile Nbk Surface

Product Details:

Place of Origin:	CHINA
Brand Name:	YUHONG
Certification:	ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Model Number:	E235+N,ST37.4,ST52.4

Payment & Shipping Terms:

Minimum Order Quantity:	100KGS
Packaging Details:	Plywood case,Bundle
Delivery Time:	7DAYS
Payment Terms:	L/C, T/T

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Detailed Product Description

OD:	3/4" (19.05), 1"(25.4) , 1-1/4"(31.75), 1-1/2"(38.1), 2" (50.8), 2-1/2"(63.5) , 3" (76.2)	USAGE:	Heat Exchanger Tube, Boiler Tube
STANDARD:	EN10305-1	MATERIAL:	ST37.4, ST52.4,E235+N
WT:	0.89,1,1.24,2.11MM....
Highlight:	EN10305-1 E235+N Precision Seamless Tube , E235+N Precision Seamless Tube , automobile nbk surface precision seamless tube

EN10305-1 E235+N PRECISION SEAMLESS TUBE FOR AUTOMOBILE NBK SURFACE

Description:

Precision steel tube

Grade:
St 35 / St37 / St37.4 / St45 / St 52 / St52.4/ E215 / E235 / E355

Precision in size,Bright for the surface, high ability of mechanical performance

Standard: DIN 2391, EN10305-1, EN10305-4, BS 6323, ISO 8535

DIN2391 Precision steel pipe

STEEL GRADE: ST30Si, ST30Al, ST35, ST37, ST37.4, ST45, ST52, ST52.4, etc

Size:(mm)

Out Dimensions: 6 mm ~ 350 mm

Wall Thickness: 0.8 mm ~30mm

Length: Fixed(6m,9m,12,24m) or normal length(5-12m)

Final supply conditions:

Cold finished(hard)BK

Tubes do not undergo heat treatment following the final cold forming and, thus, have a rather high

resistance to deformation.

Cold finished(soft)BKW

The final heat treatment is followed by cold drawing involving limited deformation. Appropriate further

processing allows a certain degree of cold forming (e.g. bending, expanding)

Cold finished and stress-relieved BKS

Heat treatment is applied following the last cold forming process. Subject to appropriate processing

conditions, the increase in the residual stresses involved enables both forming and machining to a certain

degree.

Annealed GBK The last cold forming process is followed by annealing in a controlled atmosphere.

Normalized NBK

The last cold forming process is followed by annealing above the upper transformation point in a controlled

atmosphere.

Chemical Composition

Steel Grade		Chemical Components (%)
Steel Name	Steel Number	C max.	Si max.	Mn max.	P max.	S max.	AL min.
E215	1.0212	0.10	0.05	0.7	0.025	0.025	0.025
E235	1.0308	0.17	0.35	1.2	0.025	0.025	/
E355	1.058	0.22	0.55	1.6	0.025	0.025	/

Delivery Conditions

The tubes shall be manufactured from hot finished seamless tubes by cold drawing or other suitable processes. The tubes shall be supplied in one of the delivery conditions as follows:

Designation	Symbol	Description
Cold drawn/hard	+C	No heat treatment after the final cold drawing process.
Cold drawn/soft	+LC	After the final heat treatment there is a suitable drawing pass.
Cold drawn and stress relieved	+SR	After the final cold drawing process there is a stress relief heat treatment in a controlled atmosphere.
Annealed	+A	After the final cold drawing process the tubes are annealed in a controlled atmosphere.
Normalized	+N	After the final cold drawing operation, the tubes are normalized in a controlled atmosphere.