All we do is always involved with our tenet " Consumer initial, Trust first, devoting within the food stuff packaging and environmental defense for ASTM A335 P5 P11 P12 Alloy Steel Seamless Steel Pipe, Adhering to the small business principle of mutual advantages, we have now won good reputation amid our buyers because of our best companies, quality goods and competitive price ranges. We warmly welcome buyers from your home and overseas to cooperate with us for common results.
All we do is always involved with our tenet " Consumer initial, Trust first, devoting within the food stuff packaging and environmental defense for
A335 P11, We always insist on the principle of "Quality and service are the life of the product". Till now, our products have been exported to more than 20 countries under our strict quality control and high level service.
Overview
Standard: ASTM A335 |
Alloy Or Not: Alloy |
Grade Group: P5,P9,P11,P22,P91, P92 Etc. |
Application: Boiler Pipe |
Thickness: 1 - 100 Mm |
Surface Treatment: As Customer's Requirement |
Outer Diameter(Round): 10 - 1000 Mm |
Technique: Hot Rolled/ Cold Drawn |
Length: Fixed Length Or Random Length |
Heat Treatment: Annealing/Normalizing/Tempering |
Section Shape: Round |
Special Pipe: Thick Wall Pipe |
Place Of Origin: China |
Usage: High Pressure Steam Pipe, Boiler And Heat Exchanger |
Certification: ISO9001:2008 |
Test: ET/UT |
Application
It is mainly used to make high-quality alloy steel boiler pipe , heat exchanged pipe, high pressure steam pipe for petroleum and chemical industry
Main Grade
Grade of high-quality alloy pipe :P5,P9,P11,P22,P91,P92 etc
Chemical Component
Grade |
UN |
C≤ |
Mn |
P≤ |
S≤ |
Si≤ |
Cr |
Mo |
Sequiv. |
P1 |
K11522 |
0.10~0.20 |
0.30~0.80 |
0.025 |
0.025 |
0.10~0.50 |
– |
0.44~0.65 |
P2 |
K11547 |
0.10~0.20 |
0.30~0.61 |
0.025 |
0.025 |
0.10~0.30 |
0.50~0.81 |
0.44~0.65 |
P5 |
K41545 |
0.15 |
0.30~0.60 |
0.025 |
0.025 |
0.5 |
4.00~6.00 |
0.44~0.65 |
P5b |
K51545 |
0.15 |
0.30~0.60 |
0.025 |
0.025 |
1.00~2.00 |
4.00~6.00 |
0.44~0.65 |
P5c |
K41245 |
0.12 |
0.30~0.60 |
0.025 |
0.025 |
0.5 |
4.00~6.00 |
0.44~0.65 |
P9 |
S50400 |
0.15 |
0.30~0.60 |
0.025 |
0.025 |
0.50~1.00 |
8.00~10.00 |
0.44~0.65 |
P11 |
K11597 |
0.05~0.15 |
0.30~0.61 |
0.025 |
0.025 |
0.50~1.00 |
1.00~1.50 |
0.44~0.65 |
P12 |
K11562 |
0.05~0.15 |
0.30~0.60 |
0.025 |
0.025 |
0.5 |
0.80~1.25 |
0.44~0.65 |
P15 |
K11578 |
0.05~0.15 |
0.30~0.60 |
0.025 |
0.025 |
1.15~1.65 |
– |
0.44~0.65 |
P21 |
K31545 |
0.05~0.15 |
0.30~0.60 |
0.025 |
0.025 |
0.5 |
2.65~3.35 |
0.80~1.60 |
P22 |
K21590 |
0.05~0.15 |
0.30~0.60 |
0.025 |
0.025 |
0.5 |
1.90~2.60 |
0.87~1.13 |
P91 |
K91560 |
0.08~0.12 |
0.30~0.60 |
0.02 |
0.01 |
0.20~0.50 |
8.00~9.50 |
0.85~1.05 |
P92 |
K92460 |
0.07~0.13 |
0.30~0.60 |
0.02 |
0.01 |
0.5 |
8.50~9.50 |
0.30~0.60 |
A New designation established in accordance with Practice E 527 and SAE J1086, Practice for Numbering Metals and Alloys (UNS). B Grade P 5c shall have a titanium content of not less than 4 times the carbon content and not more than 0.70 %; or a columbium content of 8 to 10 times the carbon content.
Mechanical Property
Mechanical properties |
P1,P2 |
P12 |
P23 |
P91 |
P92,P11 |
P122 |
Tensile strength |
380 |
415 |
510 |
585 |
620 |
620 |
Yield strength |
205 |
220 |
400 |
415 |
440 |
400 |
Heat Treatment
Grade |
Heat Treatment Type |
Normalizing Temperature Range F [C] |
Subcritical Annealing or Tempering |
P5, P9, P11, and P22 |
Temperature Range F [C] |
A335 P5 (b,c) |
Full or Isothermal Anneal |
|
|
|
Normalize and Temper |
***** |
1250 [675] |
|
Subcritical Anneal (P5c only) |
***** |
1325 – 1375 [715 - 745] |
A335 P9 |
Full or Isothermal Anneal |
|
|
|
Normalize and Temper |
***** |
1250 [675] |
A335 P11 |
Full or Isothermal Anneal |
|
|
|
Normalize and Temper |
***** |
1200 [650] |
A335 P22 |
Full or Isothermal Anneal |
|
|
|
Normalize and Temper |
***** |
1250 [675] |
A335 P91 |
Normalize and Temper |
1900-1975 [1040 - 1080] |
1350-1470 [730 - 800] |
|
Quench and Temper |
1900-1975 [1040 - 1080] |
1350-1470 [730 - 800] |
Tolerance
For pipe ordered to inside diameter, the inside diameter shall not vary more than 6 1 % from the specified inside diameter
Permissible Variations in Outside Diameter
NPS Designator |
in |
mm |
in |
mm |
1⁄8to 11⁄2, incl |
1⁄64 (0.015) |
0.4 |
1⁄64(0.015) |
0.4 |
Over 11⁄2 to 4, incl. |
1⁄32(0.031) |
0.79 |
1⁄32(0.031) |
0.79 |
Over 4 to 8, incl |
1⁄16(0.062) |
1.59 |
1⁄32(0.031) |
0.79 |
Over 8 to 12, incl. |
3⁄32(0.093) |
2.38 |
1⁄32(0.031) |
0.79 |
Over 12 |
6 1 % of the specified
outside
diameter |
|
|
|
Test Requirement
Hydraustatic Test:
The Steel Pipe Should Be Tested Hydraulically One By One. The Maximum Test Pressure Is 20 MPa. Under The Test Pressure, The Stabilization Time Should Be Not Less Than 10 S, And The Steel Pipe Should Not Leak.
After The User Agrees, The Hydraulic Test Can Be Replaced By Eddy Current Testing Or Magnetic Flux Leakage Testing.
Nondestructive Test:
Pipes That Require More Inspection Should Be Ultrasonically Inspected One By One. After The Negotiation Requires The Consent Of The Party And Is Specified In The Contract, Other Non-Destructive Testing Can Be Added.
Flattening Test:
Tubes With An Outer Diameter Greater Than 22 Mm Shall Be Subjected To A Flattening Test. No Visible Delamination, White Spots, Or Impurities Should Occur During The Entire Experiment.
Hardness Test:
For pipe of Grades P91, P92, P122, and P911, Brinell, Vickers, or Rockwell hardness tests shall be made on a specimen from each lot
Bend Test:
For pipe whose diameter exceeds NPS 25 and whose diameter to wall thickness ratio is 7.0 or less shall be subjected to the bend test instead of the flattening test. Other pipe whose diameter equals or exceeds NPS 10 may be given the bend test in place of the flattening test subject to the approval of the purchaser
Product Detail
Video
Boiler Tube
All we do is always involved with our tenet " Consumer initial, Trust first, devoting within the food stuff packaging and environmental defense for Top Suppliers ASTM A335 P11 P5 P12 Alloy Steel Seamless Steel Pipe, Adhering to the small business principle of mutual advantages, we have now won good reputation amid our buyers because of our best companies, quality goods and competitive price ranges. We warmly welcome buyers from your home and overseas to cooperate with us for common results.
Top Suppliers China Alloy Steel Pipe and Steel Pipe, We always insist on the principle of "Quality and service are the life of the product". Till now, our products have been exported to more than 20 countries under our strict quality control and high level service.
A335 P11
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