Yuhong Group Co.,Ltd
| Payment Terms | L/C, T/T |
| Delivery Time | 5-80 Days |
| Packaging Details | BUNDLE,PLYWOOD CASE |
| Standard | ASTM A335 |
| Material Grade | P11 |
| Length | Single Random, Double Random & Cut Length. |
| Surface | Black/Vanish |
| OD | 1/2" TO 24 " |
| END | PLAIN,BEVELED |
| Brand Name | YUHONG |
| Model Number | ASTM A335 P11,ASTM A335 P22, ASTM A335 P5, ASTM A335 P9, ASTM A335 P91 |
| Certification | ABS, BV, DNV, GL, LR, SGS, IEI |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | L/C, T/T | Delivery Time | 5-80 Days |
| Packaging Details | BUNDLE,PLYWOOD CASE | Standard | ASTM A335 |
| Material Grade | P11 | Length | Single Random, Double Random & Cut Length. |
| Surface | Black/Vanish | OD | 1/2" TO 24 " |
| END | PLAIN,BEVELED | Brand Name | YUHONG |
| Model Number | ASTM A335 P11,ASTM A335 P22, ASTM A335 P5, ASTM A335 P9, ASTM A335 P91 | Certification | ABS, BV, DNV, GL, LR, SGS, IEI |
| Place of Origin | CHINA | ||
| High Light | ASTM A335 P11 alloy steel pipe ，high temperature seamless steel tube ，corrosion resistant alloy pipeline pipe | ||
ASTM A335 / ASME SA335 P11 Seamless Alloy Steel Pipe For Pipeline Systems With High Temperature, High Pressure And Corrosive Media
ASTM A335 P11 is a mature, economical, and reliable medium-alloy steel seamless pipe widely used in high-temperature, high-pressure steam and process piping systems in power plant boilers, oil refineries, and petrochemical plants.
It fills the performance and cost gap between carbon steel (such as A106 Gr.B) and higher alloy materials (such as P22, P91, and stainless steel), and is one of the standard materials in pressure piping engineering worldwide.
Key Advantages of ASTM A335 P11 Seamless Alloy Steel Pipe:
Excellent High-Temperature Strength: Containing 0.5% molybdenum (Mo), it exhibits excellent creep resistance and stress fracture resistance in the 400–540°C range, far superior to ordinary carbon steel.
Good Oxidation and Steam Corrosion Resistance: 1.25% chromium enhances resistance to oxidation and steam corrosion at high temperatures, extending pipe service life.
Resistant to High-Temperature Hydrogen Corrosion: Suitable for hydrogen-containing environments, it can be safely used in high-pressure hydrogen-containing conditions at approximately 500–550°C.
High Cost-Effectiveness: Compared to high-chromium stainless steel or nickel-based alloys, P11 significantly reduces costs; compared to carbon steel, its performance at high temperatures is significantly improved, resulting in superior overall economic efficiency.
Suitable for Multiple Media: Can be used with steam, hot water, hydrogen, hydrocarbons, oils, and mildly corrosive chemicals, covering industries such as power generation, oil refining, petrochemicals, and chemicals.
| Chemical Composition (Ladle Analysis) | |
| Element | Composition (wt%) |
| Carbon (C) | 0.05 – 0.15 |
| Manganese (Mn) | 0.30 – 0.60 |
| Phosphorus (P) | ≤ 0.025 |
| Sulfur (S) | ≤ 0.025 |
| Silicon (Si) | 0.50 – 1.00 |
| Chromium (Cr) | 1.00 – 1.50 |
| Molybdenum (Mo) | 0.44 – 0.65 |
| Mechanical Properties | |
| Property | Value (min.) |
| Tensile Strength | ≥ 415 MPa (60 ksi) |
| Yield Strength (0.2% offset) | ≥ 205 MPa (30 ksi) |
| Elongation (longitudinal) | ≥ 22% |
| Elongation (transverse) | ≥ 17% |
| Hardness (Brinell) | ≤ 217 HBW |
Application
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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