seamless alloy steel pipe ASTM A335 standard high pressure boiler pipe

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 GB/T5310-2017 ASME SA-106/SA-106M-2015 ASTMA210(A210M)-2012 ASME SA-213/SA-213M ASTM A335/A335M-2018