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Alloy Steel ASTM A335 P9 Pipe Seamless For Petrochemical
Alloy Steel ASTM A335 P9 Pipe Seamless For Petrochemical
Specifications
Brand Name :
Jinxi Pipe
Model Number :
Alloy Steel Pipe
Certification :
ISO 9001,BV,SGS,TUV,CE
Place of Origin :
China
MOQ :
1
Price :
1500 USD/TON
Payment Terms :
L/C,D/A,D/P,T/T,Western Union,MoneyGram
Supply Ability :
100000
Delivery Time :
7 days
Packaging Details :
Bundles
Product Name :
Boiler Pipe & Tube, Seamless Boiler Tube, Low And Medium Pressure Boiler Tube, High Pressure Boiler Tube, Alloy Steel Boiler Tube.
Standard :
ASTM A335 P9 Boilar Steel Pipe
ASTM A335 P9 Tube Type :
Seamless
ASTM A335 P9 OD :
3.2-762mm
ASTM A335 P9 Thickness :
0.4-63.5mm
ASTM A335 P9 Length Range :
5.8/11.86 Meter, 20 FT (6 Meter), 40FT (12 Meter) Or Customized
ASTM A335 P9 Ends Type :
Beveled Ends, Plain Ends
ASTM A335 P9 Protection Caps :
Plastic Caps
Description

ASTM A335 P9 Boilar Steel Pipe For Petrochemical

Specification

ASTM A335 P9 Alloy Steel Pipe is a seamless ferritic alloy steel pipe designed for high-temperature service, featuring 8-10% Chromium and 0.9-1.1% Molybdenum for enhanced strength, oxidation resistance, and toughness at extreme temperatures, making it ideal for power plants, petrochemicals, and refineries. It meets strict chemical and mechanical specs, requiring hydrostatic and NDT testing, and offers superior performance over carbon steel in demanding industrial environments.

American Standard Standard Name
A335 / A335M Standard Specification for Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service

Alloy Steel ASTM A335 P9 Pipe Seamless For Petrochemical

ASTM A335 P9 Boilar Steel Pipe Chemical Composition

Sources American Standard A335 / A335M TABLE 1 Chemical Requirements

ASTM A335
Grades		 UNS
Designation		 C Mn P S Si Cr Mo
P9 K90941 0.15 0.30-0.60 0.025 0.025 0.25-1.00 8.00-10.00 0.9-1.1

ASTM A335 P9 Boilar Steel Pipe Mechanical Properties

Sources American Standard A335 / A335M TABLE 3 Tensile Requirements

ASTM‎‏ A335
Grade		 UNS
Designation		 Yield strength,
Min:ksi/MPa		 Tensile strength,
Min:ksi/MPa		 Elongation Requirements % (Min) Hardness Requirements (Max)
Brinell Vickers Rockwell
P9 K90941 30/205 60/415 30 – - –

ASTM A335 P9 Boilar Steel Pipe Heat Treatment

Sources American Standard A335 / A335M TABLE 2 Heat Treatment Requirements A

ASTM A335 Grade Heat Treatment Type Normalizing Temperature Range F [C] Cooling Media Subcritical Annealing or Tempering Temperature,min or range“F[°C]
P9 full or isothemmal anneal or - - -
normalize and temper or - - 1250 [675]
A Where ellipses (_) appear in this table there is no requirement.

ASTM A335 P9 Boilar Steel Pipe Permissible Variations in Outside Diameter

Sources American Standard A335 / A335M TABLE 7 Permissible Variations in Outside Diameter

NPS

[DN] Designator

 Over Under
in. mm in. mm
1/8 to 1 1/2 [6 to 40], incl. 1/64 (0.015) 0.4 1/64 (0.015) 0.4
Over 1 1/2 to 4 [40 to 100], incl. 1/32 (0.031) 0.79 1/32 (0.031) 0.79
Over 4 to 8 [100 to 200], incl. 1/16 (0.062) 1.59 1/32 (0.031) 0.79
Over 8 to 12 [200 to 300], incl. 3/32 (0.093) 2.38 1/32 (0.031) 0.79
Over 12 [300] +/- 1% of the specified outside diameter

ASTM A335 P9 Boilar Steel Pipe Permitted Variations in Wall Thickness

Sources American Standard A335 / A335M TABLE 8 Permitted Variations in Wall Thickness

NPS [DN] Designator Tolerance, % from Specified
Over Under
1/8 to 2 1/2 [6 to 65] incl., all t/D ratios 20.00% 12.50%
Above 2 1/2 [65], t/D < or = 5% 22.50% 12.50%
Above 2 1/2 [65], t/D > 5% 15.00% 12.50%
(t = Specified Wall Thickness; D = Specified Outside Diameter)

ASTM A335 P9 Boilar Steel Pipe Manufacturing Proces

Alloy Steel ASTM A335 P9 Pipe Seamless For Petrochemical

ASTM A335 P9 Boilar Steel Pipe Application

  • Petrochemical Cracking Furnace Tubes
  • Hydrogen Reformer Furnace Components
  • Direct-Fired Process Heater Tubes
  • Refinery High-Temperature Piping
  • Power Generation Boiler Components
  • Heat Exchanger Tubing for Aggressive Services
  • Sulfur Recovery Unit (SRU) Critical Piping

ASTM A335 P9 Boilar Steel Pipe Packing & Loading

a. 1/2"-2"Plain end with black oil paint, caps both ends, bundles with loading belt.

b. 2"-4"Beveled end with black oil paint, caps both ends, bundles with loading belt.

c. 10"-20"Beveled end with black oil paint, caps both ends, loose packed in to container.

Alloy Steel ASTM A335 P9 Pipe Seamless For Petrochemical

→Boilar Steel Pipe is transported in containers

Alloy Steel ASTM A335 P9 Pipe Seamless For Petrochemical

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Alloy Steel ASTM A335 P9 Pipe Seamless For Petrochemical

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Product Detail
Brand Name :
Jinxi Pipe
Model Number :
Alloy Steel Pipe
Certification :
ISO 9001,BV,SGS,TUV,CE
Place of Origin :
China
MOQ :
1
Price :
1500 USD/TON
Contact Supplier
Alloy Steel ASTM A335 P9 Pipe Seamless For Petrochemical

Jinxi Steel Industry Group Co.Ltd.

Verified Supplier
2 Years
hunan, changsha
Since 1986
Business Type :
Manufacturer, Distributor/Wholesaler, Agent, Exporter, Trading Company, Seller
Main Products :
Seamless Steel Pipe, Stainless Steel Pipe, Alloy Steel Pipe
Total Annual :
10000000000-30000000000
Employee Number :
100~500
Certification Level :
Verified Supplier
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