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Help CenterASME SA210 Gr.C High Pressure Seamless Boiler Rifled Tube (Ribbed Tube)
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SA210 GR.C Seamless ferritic alloy steel boiler , superhrater and heat exchanger rifled tubes
1.Production method
Cold drawn ribbed seamless
2.Feature
Rifled tube is steel with spiral ribs on the inner surface which are produced by cold drawing process.
Lead angle of the ribs (spiral angle) P is 30 degrees to the tube axis plane.
By irregularities and spiral effect of inner surface,it is possible to prevent the film boiling when the
3.Size
OD:22-83mm WT:4.5-13mm
Lengths
• fixed length tolerances according to international standards
• random length (max. length difference = 2 m)
• Max length up to 24 m
4.Ribbed(s)
4-14 ribs
5.Standard material
| Steel | Standard | Grade | |||||||
| Carbon | ASTM A 106 | Grade A, B,C | |||||||
| ASTM A 210 | Grade A1, C | ||||||||
| EN 10216-2 | P235GH, P265 GH | ||||||||
| Alloy | ASTM A 209 | T1, T1A | |||||||
| ASTM A 213 | T2, T11, T12, T22, T23 | ||||||||
| EN 10216-2 | 16Mo3, 13CrMo4-5,10CrMo9-10 | ||||||||
| *Other grades and standards may be available upon request | |||||||||
ASME SA210 Gr.C High Pressure Boiler Rifled Tube (Ribbed Tube)
Chemical Composition | |||||
Grade |
C(Max) |
Mn |
Si(Min) |
P(Max) |
S(Max) |
C |
0.35 |
0.29-1.06 |
0.1 |
0.035 |
0.035 |
Mechanical Properties | |||
Grade |
Tensile Strength(Mpa) |
Yield Strength(Mpa) |
Elongation (%) |
C |
≥ 485 |
≥ 275 |
≥ 30 |
6.Usage
Boiler tubes for power generation and energy industry.(Subcritical pressure boiler , Supercritical pressure boiler, etc)
7.Focus on ribbing process
Ribs are obtained through cold drawing process on a grooved plug. After drawing and ribbing pass, tubes are heat treated to get specified metallurgical requirements.
Before final cutting, tubes are 100% checked by Eddy Current and Ultrasonic test, depending on customer’s requirements.
Rifled tubes are used in high pressure boilers to eliminate the steam film effect due to the D. N. B. on the inner surface of the tube and raise thermal efficiency in the furnace walls.
Rifled tubes in a conventional boiler provide a larger margin of safety for natural circulation and assisted circulation and many economical advantages as:
• Reduction of weight for downcomers,headers, drum and connecting pipe
• Reduction of pumps power
• Reduction of framework weight
13.Rifled tubes
Seamless cold drawn rifled tubes for boiler are available upon request.
We can manufacture ribbed tubes according to your drawings with rib count and tooling details!
Contact us
Jay Hou
LIAOCHENG KUNCHENG PIPE CO.,LTD
Room A2709 ChuangYe Building,Liaocheng City, Shandong Province, China
Phone:+8613184174934(WhatsApp)
Tel&Fax:0086-0635-2930669
FACEBOOK:/Lckcpipe/
TWITTER :/lckcgy
Send Inquiry to This Supplier
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