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En10297-1 34CrMo4 Seamless Steel Tube for Gas Cylinder Tube

EN10297-1 34CRMO4 GAS CYLINDER TUBE 34CrMo4 is an alloy structural steel with high endurance and creep strength at high ;

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Basic Info

Model NO.	WAN710
Thickness	10- 200 mm
Length	2-12m
Delivery Condition	Bk, Bk+S, Gbk, Nbk
Roughness	0.2-0.4 U
Straightness	≤ 0.5/1000
Transport Package	Export Standard Packing
Specification	5 - 500 mm
Trademark	Kingmetal
Origin	China (Mainland)
HS Code	7304399000
Production Capacity	5000 Ton/ Month

Product Description

EN10297-1 34CRMO4 GAS CYLINDER TUBE

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 loads 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.

Outer diameter:89mm-368mm

Wall thickness:4-18 mm

length:5.8-12m

Straightness: Deviation 2 mm/m max.

Delivery allowance: +/- 10%

Technical Specification

Corresponding standards:

GB5310	JIS	AISI/ASTM
35CrMo	SCM430(SCM2)	4130

Size Tolerance:

Length tolerance	WT tolerance	O.D. tolerance
0/+100mm for a total length	+0,9mm	-1 / +1%

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	Elongation 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. kingmetal supply 34CrMo4 seamless steel pipes in various sizes and specifications even the size hard to find. We provide a high-pressure steel pipe and steel plate for many industries.

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