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E255 Cylinder Seamless Precision Steel Tube For Machine Structural

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E255 Cylinder Seamless Precision Steel Tube For Machine Structural

Name: E255 Cylinder Seamless Precision Steel Tube For Machine Structural
Brand: Joyruns
Price: 1 USD

Buy cheap E255 Cylinder Seamless Precision Steel Tube For Machine Structural product

Brand Name : Joyruns

Model Number : EN10305-1, DIN2391

Certification : ISO9000

Place of Origin : CHANGZHOU, CHINA

MOQ : 5TONs

Price : Negotiable

Payment Terms : TT OT 100% LC AT SIGHT

Supply Ability : 1000Ton/month

Delivery Time : 30DAYS

Packaging Details : Exporting package/wooden box package

Standard : EN10305-1, DIN2391

Grade : E235, E255, E355

Type : Seamless cold drawing or cold rolled

OD. Range : 6mm – 114.3mm

Wall thickness : 1mm-15mm

Length : Max length 12M

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EN10305-1 E235/E255/E355 + NBK/N/BK Gas Spring Precision Seamless Steel Tube

Precision Cylinder Tubes, Honed Tubes

Seamless cold drawn precision tubes and pipes are widely used for machine structural purposes, automobile, and hydraulic pressure equipment.

Size: Outside Diameter: 6mm – 340mm, Wall Thickness: 1mm – 50mm

Standard: DIN2391, DIN2394, ASTM A519, JIS G3445 STKM

Application: used for Air Cylinder and Oil Cylinder, Oil Inlet Tubes and Gas Spring Tubes on Automobile, Bushing Tubes.

Steel Grade		Chemical Composition
Symbol	Material Number	C Max.	Si Max.	Mn Max.	P Max.	S Max.
E235	1.0308	0.17	0.35	1.20	0.025	0.025
E255	1.0408	0.21	0.35	0.40--1.10	0.025	0.025
E355	1.0580	0.22	0.55	1.60	0.025	0.025

Steel Grade		+C		+LC		+SR
Name	No.	Rm Mpa	A %	Rm Mpa	A %	Rm Mpa	ReH Mpa	A %
E235	1.0308	480	6	420	10	420	350	16
E255	1.0408	580	5	520	8	520	375	12
E355	1.0580	640	4	580	7	580	450	10

Steel Grade		+A		+N
Name	No.	Rm Mpa	A %	Rm Mpa	ReH Mpa	A %
E235	1.0308	315	25	340--480	235	25
E255	1.0408	390	21	440--570	255	21
E355	1.0580	450	22	490--630	355	22

Quality Control:
1. Incoming Raw Material Inspection
2. Raw Material Segregation to avoid steel grade mix-up
3. Heating and Hammering End for Cold Drawing
4. Cold Drawing or Cold Rolling, Online inspection
5. Heat Treatment:+SR, +A, +N
6. Straightening/Cutting to specified length/Finished Measuring Inspection
7. Quality Testing in own lab with Tensile Strength, Yield Strength, Elongation, Hardness, Straightness, etc.
8. Packing and Stocking.

100% Eddy Current Testing.
100% Size Tolerance Checking.
100% Tube surface checking to avoid surface defects.

Customer benefits

High dimensional accuracy for inside and outside diameters
Extremely limited wall thickness tolerances
Reduced eccentricity
Smooth drawn surface
Increased strength values due to cold forming
Tightly staggering range of dimensions
Customized heat treatment

E255 Cylinder Seamless Precision Steel Tube For Machine Structural

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