Gas Cylinder Tube

En10297-1 34CrMo4 Gas Cylinder Tube

En10297-1 34CrMo4 Gas Cylinder Tube
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Product Details


EN10297-1 34CRMO4 GAS CYLINDER TUBE, 34CRMO4 SEAMLESS STEEL TUBING


34CrMo4 is an alloy structural steel with high endurance and creep strength at high temperatures. It's mainly used for cylinder manufacturing or structural parts working under high load such as transmission parts of vehicles and engines; Turbine-generator rotor, spindle, heavy load drive shaft, large section parts, locomotive traction gear, supercharger transmission gear, rear shaft, connecting rod and spring clamp with great load, can also be used for the oil drilling pipe joints and fishing tools below 2000m. However, its poor weldability requires preheating before welding, heat treatment after welding and stress elimination. It is generally used after quenching and tempering, and used after high and medium frequency surface quenching or quenching and low and medium temperature tempering. 


Technical Statement

Corresponding standardsGB5310 35CrMo; JIS SCM430(SCM2); AISI 4130

Outer diameter:4.0-76.0 mm

Wall thickness0.5-0.8 mm

length5.8-12m

Length tolerance : -0/+100mm for total length

WT tolerance : +0,9mm -0mm

O.D. tolerance : -1 / +1%

Straightness: Deviation 2 mm/m max.

Delivery allowance : +/- 10%

Ends: Square cut


Chemical Composition:

C

Si

Mn

P

S

Cr 

Mo 

0.30~0.37

0.10~0.40

0.60~0.90

≤0.035

≤0.035

0.90~1.20

0.15~0.30


Mechanical Values :

Grade

Tensile strength Rm

Yield strength YS

Enlongation A(%)

34CrMo4

≥985(100)

≥835(85)

≥12



UT protocol according to ISO 10893-10

Non destructive control: flux leakage acc. To EN 10246-4

Internal transversal defects- level severity F3

External transversal defects- level severity F2

flux leakage acc. To EN 10246-5

Internal longitudinal defects: level severity F3

External longitudinal defects : level severity F2

Sizes control: US-wall thickness measurement acc. To EN 10246-13

Mechanical tests will be done on samples at simulated heat treatment

conditions oil quenching at 880°C /30 minutes and tempering at 650°C /30 minutes.

Mill Test Certificate: EN 10204 3.1

Inspection : Bureau Veritas Acceptable

Packing: In bundles 2.5MT max, pipe ends with protection caps

Protection : No outside/inside coating, protecting material required



34CrMo4 is the alloy material commonly used in EN 10297-1 standard and the heat treatment is mainly normalizing or annealing. Worldiron&steel supply 34CrMo4 seamless steel pipes in various sizes and specifications even the size hard to find. We provide high pressure steel pipe and steel plate for many industries. If you want get price, please contact with us  by:  info@worldironsteel.com or call us now!

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