Yuhong Group Co.,Ltd
| SURFACE | BLACK/VANISH |
| Payment Terms | L/C,T/T |
| END | PLAIN,BEVELED |
| Packaging Details | PLYWOOD CASE,BUNDLE,PALLET |
| MATERIAL | P11 P22 P5 P9 |
| Delivery Time | 7DAYS |
| LENGTH | Single Random, Double Random & Cut Length. |
| STANDARD | ASTM A335 |
| OD | 1/2" TO 24 " |
| Model Number | ASTM A335 P11,ASTM A335 P22, ASTM A335 P5, ASTM A335 P9, ASTM A335 P91 |
| Brand Name | YUHONG |
| Certification | ABS, BV, DNV, GL, LR, SGS, IEI |
| Place of Origin | CHINA |
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Product Specification
| SURFACE | BLACK/VANISH | Payment Terms | L/C,T/T |
| END | PLAIN,BEVELED | Packaging Details | PLYWOOD CASE,BUNDLE,PALLET |
| MATERIAL | P11 P22 P5 P9 | Delivery Time | 7DAYS |
| LENGTH | Single Random, Double Random & Cut Length. | STANDARD | ASTM A335 |
| OD | 1/2" TO 24 " | Model Number | ASTM A335 P11,ASTM A335 P22, ASTM A335 P5, ASTM A335 P9, ASTM A335 P91 |
| Brand Name | YUHONG | Certification | ABS, BV, DNV, GL, LR, SGS, IEI |
| Place of Origin | CHINA | ||
| High Light | ASTM A335 alloy steel tube ，chrome-moly seamless pipe ，alloy steel tube P9 P22 | ||
Alloy Steel Tube ASTM A335 Chrome-Moly Alloy Seamless Pipe Grade P9 P22
Main Applications of ASTM A335 P9 Tubes
ASTM A335 P9 seamless tube is a ferritic heat-resistant alloy tube containing 9% chromium and 1% molybdenum. It can be used continuously at high pressure within 550～593°C, with excellent high-temperature oxidation resistance, high-temperature sulfide corrosion resistance and creep resistance. It is widely applied in thermal power, oil refining cracking, hydroprocessing and chemical high-temperature & high-pressure equipment.
They heat saturated steam into high-temperature superheated steam under high temperature of 550–600°C and high pressure of 16–26 MPa.
Large-diameter thick-walled P9 tubes connecting boiler outlets to steam turbines, serving as core high-temperature pressure-bearing pipelines of power generating units.
High-temperature feedwater and auxiliary steam pipelines of the secondary loop of nuclear power plants, cooling medium transmission pipelines with stable anti-oxidation and anti-radiation properties.
| Material | Cr-Mo Composition | Max Long-Term Operating Temp. | Core Characteristics |
| P22 (2.25Cr-1Mo) | 2.25% Chromium, 1% Molybdenum | ≤530°C | Low cost, excellent weldability, moderate sulfur resistance at medium temperature, average creep strength |
| P9 (9Cr-1Mo) | 9% Chromium, 1% Molybdenum | ≤593°C | Far superior oxidation & high-temperature sulfidation resistance compared with P22; preferred material for refinery hydrotreating & cracking units |
| P91 (9Cr-1Mo-V) | 9% Chromium, 1% Molybdenum with Vanadium & Niobium for grain refinement | ≤620°C | Extremely high high-temperature creep strength, thinner wall thickness available; widely used in supercritical power plants & large-scale hydrocracking units |
| Alloy steel seamless pipe/tube | |
| PIPES & TUBES | : ASTM A335, ASTM A213, ASTM A691 |
| PIPES FITTINGS | : ASTM A234 |
| FITTINGS & FLANGES | : ASTM A182 |
| GRADES | : P1/P5/P9/P11/P12/P22/P91 & T5/T9/T11/T22/T91 |
| FORM (PIPES) | : SEAMLESS / E.R.W / EFSW |
| Available Shapes : | |
|
Tubes & Pipes (SEAMLESS ) up to 30". Tubes & Pipes (ERW ) up to 60". Sheets / plates up to 150 MM. Rod / Bar up to 350 MM. Circle up to 1000 & Above as per your requirements. thickness up to 200 MM & Above as per requirements. |
|
Chemical composition(%):
| Grade | C | Mn | P≤ | S≤ | Si | Cr | Mo |
| P22 | 0.05-0.16 | 0.30-0.60 | 0.025 | 0.025 | ≤0.50 | 1.90-2.60 | 0.87-1.13 |
| P9 | ≤0.15 | 0.30-0.60 | 0.025 | 0.025 | 0.25-1.00 | 8.00-10.00 | 0.90-1.10 |
| P91 | 0.08-0.12 | 0.30-0.60 | 0.020/0.010 | 0.020/0.010 | 0.02-0.50 | 8.00-9.50 | 0.85-1.05 |
Mechanical properties:
| Grade | Tensile strength | Yield strength | Elongation |
| P11, P22, P5, P9 | ≥415 | ≥205 | ≥30/20 |
| P91 | ≥585 | ≥415 | ≥20 |
| P92 | ≥620 | ≥440 | ≥20 |
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Importer,Exporter,Trading Company,Seller,Other
Year Established:
2007
Total Annual:
50M-70M
Employee Number:
50~850
Ecer Certification：
Verified Supplier
Yuhong Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou... Yuhong Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou...
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