34MnB5 26MnB5 Welded Round Annealed Steel Tube Cramshaft Stabilizer Bar

34MnB5 26MnB5 Welded Round Annealed Steel Tube Cramshaft Stabilizer Bar

Carbon Steel EN 10305 E235 , E215 , E275 & E355 Seamless Pipe are also known as mild steel pipes and tubes.EN 10305 Grade E235, 215, E355 Tubes are low-cost Low Carbon Steel Tubes with max 017 % carbon content with combination of max 120 % manganese easy to form and shape . These pipes are manufactured as per EN Specification and commercially referred as cs pipes or ms pipes. Low Carbon Steel Pipes are not as hard as hig carbon steel pipes,Though carburizing can increase its surface hardness.

To meet their exact application requirement, our clients can avail these in different dimensions, sizes and specifications. With respect to national and international quality of raw materials, we also offer these pipes in customized sizes and thicknesses as per specific demands by our esteemed clients at market leading prices.

Product Features:

• Corrosion resistant
• Accurate dimensions
• Can sustain high pressure & temperature load
• Rust proof finish
• Smooth transition from flange thickness to pipe
• Ensure excellent stress distribution

Carbon Steel EN 10305 E235 , E215 , E275 & E355 Seamless Pipe are also known as mild steel pipes and tubes.EN 10305 Grade E235, 215, E355 Tubes are low-cost Low Carbon Steel Tubes with max 017 % carbon content with combination of max 120 % manganese easy to form and shape . These pipes are manufactured as per EN Specification and commercially referred as cs pipes or ms pipes. Low Carbon Steel Pipes are not as hard as hig carbon steel pipes,Though carburizing can increase its surface hardness.

To meet their exact application requirement, our clients can avail these in different dimensions, sizes and specifications. With respect to national and international quality of raw materials, we also offer these pipes in customized sizes and thicknesses as per specific demands by our esteemed clients at market leading prices.

Product Features:

• Corrosion resistant
• Accurate dimensions
• Can sustain high pressure & temperature load
• Rust proof finish
• Smooth transition from flange thickness to pipe
• Ensure excellent stress distribution

Standard Specification:

Material & Grade :

Steel grades for standard precision tubes

EN 10305-1	E215, E235, E255, E355, E410, 26Mn5, 26Mo2 C35E, C45E, 25CrMo4, 42CrMo4; 25CrMo4 Marking system for steel grades according to EN
ASTM 519 SAE	1008, 1010, 1012, 1015, 1016, 1017, 1018, 1019, 1020, 1021, 1022, 1025, 1026, 1030, 1035, 1040, 1045, 1050, 1518, 4130, 4140, 4142, 8617
JIS G3445	STKM11A, STKM12A, STKM12B, STKM12C, STKM13A, STKM13B, STKM13C, STKM14A, STKM14B, STKM14C, STKM15A, STKM15C, STKM16A, STKM16C, STKM17A, STKM17C, STKM18A, STKM18B, STKM18C, STKM19A, STKM19C, STKM20A

Straightness of standard precision tubes

Straightness of the tubes is influenced by the mechanical properties of the tubes. For material having the yield point ReH <= 500 MPa is straightness 0,0015 multiple of the tube length maximum, allowed straightness for one meter length is 1.5 milimeters. For material with the yield point ReH > 500 MPa the allowable straightness for the whole length of the tube is 0.0020 multiple of the tube length, allowed straightness of one meter is 2 milimeters.

Delivery condition and precision tubes surface

Precision tubes are supplied in condition that is presented in the table below. It is marking for thermal processing according to EN 10305-1.

Chemical Composition:

Delivery conditions

+C - cold drawn/hard

+LC - cold drawn/soft

+SR - cold drawn and stress relieved

+A - annealed

+N - normalized

Delivery conditions:

Material: E235, E355

Appearance:

The internal and external surface finish of the tubes shall be typical of the manufacturing process and, where applicable, the heat treatment, and it shall be such that any surface imperfections such as ridges, dents or shallow grooves requiring dressing can be identified.

Surface imperfections which encroach on the specified minimum wall thickness shall be considered defects and tubes containing these shall be deemed not to conform to this part of EN 10305.

Roughness of inside surface is not more than 4um in the delivery conditions +C, +LC

Roughness of outside surface is not more than 4um in the delivery conditions +SR, +A, +N, +C, +LC

Tube OD: 4-30mm, WT: 0.5-10mm

Surface treatment in delivery: Oiled, black phosphated, zinc coated

Application: automotive, vehicle, general engineering industries.

Each piece of tube is high pressure flushed for high cleanness

Each piece of tube ends is plugged with plastic caps

Each piece of tube is ink-marked with standard, size, condition

Wooden case packing

Applications: for auto industry/machinery use/oil cylinder tube/motorcycle shock absorber/auto shock absorber/inner cylinder/telescopic cylinders/jack lifting system/hydraulic cylinders

Appearance:
The internal and external surface finish of the tubes is smooth, while the Weld Seam is somehow not visible or tangible.
The ID surface with roughness Ra≤4μm, the best ID smoothness we could reach Ra≤0.8μm
The inner surface can be measured and reported if this is requested by the purchaser before PO.

Supplying Steel Grade:
E155, E195, E235 E275, E355

Delivery Condition:
+C, +LC, + SR, +A, +N

Production Method:
DOM, ERW+ cold drawn

Mechanical properties in room temperature

Chemical composition (ladle analysis)

DOM is a process that is applied to tubing after it is initially constructed.It is refferred to as Seamless ,It can be said that do seamless process method on ERW tubes,So the tubes will have a high strength ,high quality .Material form E155 E195 E235 E275 E355 1020 1026 and so on .DOM tubing is commonly use in auto parts .

Steel Grade and Chemical Compositions

aRm: tensile strength; ReH: upper yield strength; A: elongation after fracture
b 1Mpa=1N/mm2
c Depending on the degree of cold work in the finishing pass the yield strength may nearly be as high as the tensile strength.
For calculation purposes the following relations are recommended:
for delivery condition +C: ReH ≥0.8 Rm
for delivery condition +LC: ReH ≥0.7 Rm
d For calculation purposes the following relation is recommended:ReH≥0.5Rm

Production Process:
Cold rolling by Cold pilger machine and Cold rolling machine
Size: 20-350mm

1. Standard:
EN10305-2 Cold Drawn Precision Seamless Steel Pipes

2. Steel Grade:
E155,E195,E235,E275,E355, other materials upon agreement with customers.

3. Production method:
Cold drawn on the welded steel tubes, to reach high accuracy on the OD and WT tolerance

4. Size range:
O.D.:20-350mm W.T.:1-35mm L:max12000mm

5. Packing:
In Hexagonal Bundles, with anti-rust oil protection, with seaworthy packing

6. Deliver condition:
1). +C No heat treatment after the final cold drawing process
2). +LC After the final heat treatment there is a suitable drawing pass
3). +SR After the final cold drawing process there is a stress relieve heat treatment in a controlled atmosphere
4). +A After the final cold drawing process the tubes are annealed in a controlled atmosphere
5). +N After the final cold drawing operation the tubes are normalized in a controlled atmosphere