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    Material quality very good. we have cooperate more than 10 Years. They trade lots kinds of steel material. All material quality good. They duty for all material quality. We are planing continue cooperate with them in the future
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ASTM A335 P91 Seamless Carbon Steel Pipe for High Temperature Service with Corrosion Resistance and OD 6-630mm

  • ASTM A335 P91 Seamless Carbon Steel Pipe for High Temperature Service with Corrosion Resistance and OD 6-630mm
  • ASTM A335 P91 Seamless Carbon Steel Pipe for High Temperature Service with Corrosion Resistance and OD 6-630mm
  • ASTM A335 P91 Seamless Carbon Steel Pipe for High Temperature Service with Corrosion Resistance and OD 6-630mm
  • ASTM A335 P91 Seamless Carbon Steel Pipe for High Temperature Service with Corrosion Resistance and OD 6-630mm
  • ASTM A335 P91 Seamless Carbon Steel Pipe for High Temperature Service with Corrosion Resistance and OD 6-630mm
  • ASTM A335 P91 Seamless Carbon Steel Pipe for High Temperature Service with Corrosion Resistance and OD 6-630mm
Minimum Order Quantity 1 Ton
Price US $989-1,545 / Ton
Product Details
Outer Diameter 6-1200mm Wall Thickness 1-120mm
Length 6m,5.8m,11.8m,12m Surface Treatment Black Painted, PE Coated, Galvanized
Section Shape Round Tensile Strength 415-735 MPa
Yield Strength 205-440 MPa Elongation 18-30%
Hardness ≤250HB Carbon Content 0.05-0.20%
Manganese Content 0.30-0.61% Chromium Content 0.50-9.50%
Molybdenum Content 0.30-1.50% Vanadium Content 0.15-0.25%
Heat Treatment 1200°F-1375°F
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High Temperature Service ASTM A335 P91 Pipe

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Corrosion Resistant Seamless Carbon Steel Pipe

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OD 6-630mm High Temperature Service Pipe
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Product Description
ASTM A335 P91 Pipe - Seamless Carbon Steel Pipe for High Temperature Service
High-performance seamless carbon steel pipes designed for demanding high-temperature applications in industrial settings.
Product Specifications
Item Cold Rolled / Cold Drawn alloy steel seamless pipe
Standard JISG3467-88, JISG3458-88, GB3087, GB6479-2000, GB9948-2006, GB5310-95, GB9948-88, ASME SA210, ASME SA213, ASTM SA335, ASTMA335/A335m, ASTMA213/A213m, DIN 17175
Model No. 12Cr1MoV, P2(10CrMo910), T91, P91, P9, T9, Cr5Mo, 15CrMo, P11, P12, 13CrMo44, 25CrMo, 30CrMo, 40CrMo, 12CrMo, X12CrMo91, 12Cr2Mo
Surface Black painted, PE coated, galvanized
Length 6m, 5.8m, 11.8m, 12m, or as required
Wall Thickness 1-120mm
Outer Diameter 6-1200mm
Trade Terms
Payment Terms T/T, L/C, Western Union
Price Terms FOB, CIF, CFR, Ex-work, CNF
Chemical Composition (%)
Grade C Mn P≤ S≤ Si Cr Mo V≥
T11 0.05-0.15 0.30-0.60 0.025 0.025 0.50-1.00 0.50-1.00 1.00-1.50
T12 0.05-0.15 0.30-0.61 0.025 0.025 ≤0.50 0.80-1.25 0.44-0.65
T13 0.05-0.15 0.30-0.60 0.025 0.025 ≤0.50 1.90-2.60 0.87-1.13
T2 0.10-0.20 0.30-0.61 0.025 0.025 0.10-0.30 0.50-0.81 0.44-0.65
T5 ≤0.15 0.30-0.60 0.025 0.025 ≤0.50 4.00-6.00 0.45-0.65
T5b ≤0.15 0.30-0.60 0.025 0.025 1.00-2.00 4.00-6.00 0.45-0.65
T5c ≤0.12 0.30-0.60 0.025 0.025 ≤0.50 4.00-6.00 0.45-0.65
T9 ≤0.15 0.30-0.60 0.025 0.025 0.25-1.00 8.00-10.00 0.9-1.0
T22 0.05-0.15 0.30-0.60 0.025 0.025 ≤0.50 1.90-2.60 0.87-1.13
T91 0.08-0.12 0.30-0.60 0.020 0.010 ≤0.50 8-9.50 0.85-1.05 0.18-0.25
T92 0.07-0.13 0.30-0.60 0.020 0.010 ≤0.50 8-9.50 0.3-0.60 0.15-0.25
T21 0.05-0.15 0.30-0.60 0.025 0.025 ≤0.50 2.65-3.35 0.80-1.06
Mechanical Properties
Standard Steel Grade Tensile (MPa) Yield (MPa) Elongate (%) Hardness
20MnG 20MnG ≥415 ≥240 ≥22
25MnG 25MnG ≥485 ≥275 ≥20
15CrMoG 15CrMoG 440~640 ≥235 ≥21
12Cr2MoG 12Cr2MoG 450~600 ≥280 ≥20
12Cr1MoVG 12Cr1MoVG 470~640 ≥255 ≥21
12Cr2MoWVTiB 12Cr2MoWVTiB 540~735 ≥345 ≥18
10Cr9Mo1VNb 10Cr9Mo1VNb ≥585 ≥415 ≥20
ASME SA210 SA210A-1 ≥415 ≥255 ≥30 ≤143HB
ASME SA210 SA210C ≥485 ≥275 ≥30 ≤179HB
ASME SA213 SA213 T11 ≥415 ≥205 ≥30 ≤163HB
ASME SA213 SA213 T12 ≥415 ≥220 ≥30 ≤163HB
ASME SA213 SA213 T22 ≥415 ≥205 ≥30 ≤163HB
ASME SA213 SA213 T23 ≥510 ≥400 ≥20 ≤220HB
ASME SA213 SA213 T91 ≥585 ≥415 ≥20 ≤250HB
ASME SA213 SA213 T92 ≥620 ≥440 ≥20 ≤250HB
DIN17175 ST45.8/ 410~530 ≥255 ≥21 /
DIN17175 15Mo3 450~600 ≥270 ≥22
DIN17175 13CrMo44 440~590 ≥290 ≥22
DIN17175 10CrMo910 480~630 ≥280 ≥20
Heat Treatment Assurance
Our facility utilizes a fully-automatic natural gas furnace measuring 24 meters in length, ensuring precise temperature control with real temperature tolerance within 10°C.
Note: It is recommended that the tempering temperature should be at least 100°F [50°C] above the intended service temperature. Please advise if service temperature exceeds 1100°F [600°C].
Pipe of Grades P1, P2, and P12 (hot finished or cold drawn) may receive final heat treatment at 1200°F [650°C] to 1300°F [705°C]. All Grade P5c pipes receive final heat treatment from 1325°F [715°C] to 1375°F [745°C].
Quality Assurance
  • Each lot of raw materials undergoes spectrometer testing before storage
  • 100% PMI (Positive Material Identification) of mother pipe to ensure correct material
  • 100% PMI of finished pipe to verify correct grade production
Permitted OD Tolerance
OD (mm) Plus Tolerance (+) Minus Tolerance (-)
10.29-48.3 0.4 0.4
<48.3--≤114.3 0.79 0.79
<114.3-≤219.1 1.59 0.79
<219.1-≤323.9 2.38 0.79
<323.9 ±1%
Applications
High pressure, low & medium pressure boiler steel pipes/tubes are suitable for manufacturing super-heaters, re-heaters, water walls, and economizers in large-scale power plants.
Product Images
ASTM A335 P91 Seamless Carbon Steel Pipe for High Temperature Service with Corrosion Resistance and OD 6-630mm 0 ASTM A335 P91 Seamless Carbon Steel Pipe for High Temperature Service with Corrosion Resistance and OD 6-630mm 1 ASTM A335 P91 Seamless Carbon Steel Pipe for High Temperature Service with Corrosion Resistance and OD 6-630mm 2 ASTM A335 P91 Seamless Carbon Steel Pipe for High Temperature Service with Corrosion Resistance and OD 6-630mm 3
Company Information
We are a professional enterprise specializing in pipe fittings production, steel pipe sales, and export services. Our core products include alloy steel pipes, alloy pipes, and alloy pipe fittings.
Company Overview
Established in 1992, our factory covers 100,000 square meters and employs 520 staff members, including 3 senior engineers, 12 engineers, and 150 technical professionals. Annual production exceeds 20,000 tons of pipe fittings and 50,000 tons of pipe flux.
Certifications & Quality Standards
Our company maintains comprehensive certifications including ISO9001 quality management, ISO14001 environmental management, OHSA18001 occupational health and safety, pressure pipe special equipment manufacturing license, and various industry network member certifications.
Production Capabilities
We operate advanced production equipment with complete testing facilities, including 420 key equipment units such as pushing machines, press machines, large heat treatment furnaces, and various testing instruments. We maintain over 20,000 tons of special steel pipes in inventory year-round.
Materials & Applications
Our materials include SA106B, 20g, Q345, 12Cr1MoVG, 15CrMoG, 1Cr5Mo, 1Cr9Mo, 10CrMo910, A335P5/P9/P11/P12/P22/P91/P92, WB36, and various austenitic stainless steels. Products serve petroleum, chemical, power, metallurgy, city gas, heat pipe networks, and shipbuilding industries.
Global Reach
Our products are exported to Southeast Asia, Central Asia, North Africa, South America, and other regions worldwide. We are committed to high-quality products, excellent service, and building lasting partnerships with our customers.
ASTM A335 P91 Seamless Carbon Steel Pipe for High Temperature Service with Corrosion Resistance and OD 6-630mm 4
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