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| Nguồn gốc: | Trung Quốc |
| Hàng hiệu: | YUHONG |
| Chứng nhận: | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008 |
| Số mô hình: | ASTM A335 P91 & P92 |
| Số lượng đặt hàng tối thiểu: | 500kg |
|---|---|
| Giá bán: | Có thể đàm phán |
| chi tiết đóng gói: | Case-Wooden Case / Iron Case / Gói có nắp nhựa |
| Thời gian giao hàng: | 15-20 ngày |
| Điều khoản thanh toán: | L/C, T/T |
| Khả năng cung cấp: | 800 tấn/ tháng |
| Tiêu chuẩn: | ASTM A335/ASME SA335 | Lớp vật chất: | P91 (UNS K91560) & P92 (UNS K92460) |
|---|---|---|---|
| Loại sản phẩm: | Các ống thép không may | Ứng dụng: | Nồi hơi nhà máy điện, đường ống nhiệt độ cao |
| Phạm vi kích thước: | OD 1/2" đến 24" | Yêu cầu NDT: | UT, ET, HT Có sẵn |
| Làm nổi bật: | ASTM A335 P91 seamless steel tubes,high temperature chromium molybdenum alloy tubes,supercritical power plant alloy steel tubes |
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ASTM A335 P91 & P92 Seamless Steel Tubes High Temperature Chromium Molybdenum Alloy for Supercritical Power Plants
YUHONG GROUP is a specialized manufacturer with 35 years of experience in producing high-performance seamless steel tubes. Our ASTM A335 P91 & P92 chromium-molybdenum alloy tubes are engineered for supercritical power plants, offering exceptional high-temperature strength and oxidation resistance for global energy applications.
Chemical Composition Comparison: Grade P91 vs. P92
| Element | P91 (UNS K90901) Requirement, % | P92 (UNS K92460) Requirement, % |
| Carbon (C) | 0.08 - 0.12 | 0.07 - 0.13 |
| Manganese (Mn) | 0.30 - 0.60 | 0.30 - 0.60 |
| Phosphorus (P), max | 0.02 | 0.02 |
| Sulfur (S), max | 0.01 | 0.01 |
| Silicon (Si) | 0.20 - 0.50 | 0.50 max |
| Chromium (Cr) | 8.00 - 9.50 | 8.50 - 9.50 |
| Molybdenum (Mo) | 0.85 - 1.05 | 0.30 - 0.60 |
| Vanadium (V) | 0.18 - 0.25 | 0.15 - 0.25 |
| Niobium (Nb) | 0.06 - 0.10 | 0.04 - 0.09 |
| Nitrogen (N) | 0.03 - 0.07 | 0.03 - 0.07 |
| Nickel (Ni), max | 0.4 | 0.4 |
| Aluminum (Al), max | 0.04 | 0.04 |
| Tungsten (W) | - | 1.50 - 2.00 |
| Boron (B) | - | 0.001 - 0.006 |
Heat Treatment Requirements: Grade P91 vs. P92
| Parameter | P91 (Type 1 & 2) | P92 | Key Notes |
| Grade | P91 | P92 | Both are high-strength creep-resistant alloy steels. |
| Heat Treat Type | Normalize and Temper or Quench and Temper | Normalize and Temper | A key difference: P91 allows for the alternative of Quenching. |
| Normalizing Temperature | 1900-1975 °F [1040-1080 °C] | 1900-1975 °F [1040-1080 °C] | The austenitizing temperature range is identical. |
| Cooling Media | Air or Accelerated Cooling | Air | P91 allows for accelerated cooling. |
| Tempering Temperature | 1350-1470 °F [730-800 °C] | 1350-1470 °F [730-800 °C] | The tempering temperature range is identical. |
| P91: The maximum permissible tempering temperature is 1470 °F [800 °C]. |
Tensile Requirements Comparison: Grade P91 vs. P92
| Property | P91 (Type 1 and Type 2) | P92 | Notes |
| Grade | P91 | P92, P93, P911, P36 Class 1 | P92 shares its requirements with other advanced grades. |
| Tensile Strength, min | 85 ksi | 585 MPa | 90 ksi |
| Yield Strength (0.2% Offset), min | 60 ksi | 415 MPa | 64 ksi |
Application Advantages of ASTM A335 P91 & P92 Seamless Steel Tubes
1. Excellent High-Temperature Performance
The P91 and P92 chromium-molybdenum alloy composition provides outstanding high-temperature strength and oxidation resistance, making them ideal for supercritical and ultra-supercritical power plants operating at temperatures up to 650°C.
2 . Superior Creep Resistance
These tubes offer excellent long-term creep resistance under high-temperature and high-pressure conditions, ensuring reliable performance in boiler systems, heat exchangers, and high-temperature piping applications.
3 . Enhanced Durability and Service Life
With superior resistance to thermal fatigue and oxidation, P91 and P92 tubes maintain structural integrity over extended periods, reducing maintenance requirements and increasing the lifespan of power generation equipment.
4. Global Standard Compliance
Manufactured in full compliance with ASTM A335/ASME SA335 international standards, these tubes are certified for use in critical applications worldwide, ensuring quality and safety across different markets.
5 . Wide Application Versatility
Suitable for various high-temperature environments, including power plant boilers, petrochemical processing units, and high-temperature pipeline systems, providing flexible solutions for diverse industrial needs.
Người liên hệ: Adair Xu
Tel: +8618355088550
Fax: 0086-574-88017980
