BEST PIPELINE EQUIPMENT CO.,LTD
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Product Specification
| High Light | ASME/ASTM SA/A 234 WPB Butt Weld Tees ，WP11 – WP22 – WP9 Equal and Reducing Tees ，High-Temperature Service Butt Weld Fittings | ||
WP11 is a low-alloy ferritic steel grade commonly used for high-temperature service in power plants, boilers, and piping systems. It is part of the ASTM A335 (seamless ferritic alloy-steel pipe for high-temperature service) and A182 (forged or rolled alloy-steel pipe flanges, fittings, etc.) family, typically designated as Grade 11 or P11/F11.
| Element | Composition Range |
|---|---|
| Carbon (C) | 0.05 – 0.15% |
| Manganese (Mn) | 0.30 – 0.60% |
| Silicon (Si) | 0.50 – 1.00% |
| Chromium (Cr) | 1.00 – 1.50% |
| Molybdenum (Mo) | 0.44 – 0.65% |
| Phosphorus (P) | ≤ 0.025% (max) |
| Sulfur (S) | ≤ 0.025% (max) |
| Nickel (Ni) | ≤ 0.40% (max) |
| Vanadium (V) | ≤ 0.08% (max) |
WP22 is a low-alloy steel grade used in high-temperature piping systems such as power plants and refineries. This chromium-molybdenum alloy steel is defined in standards like ASME/ASTM A234 WP22 (fittings) or A335 P22 (pipes).
| Element | Composition Range |
|---|---|
| Carbon (C) | 0.05 – 0.15% |
| Manganese (Mn) | 0.30 – 0.60% |
| Silicon (Si) | 0.50% max |
| Chromium (Cr) | 1.90 – 2.60% |
| Molybdenum (Mo) | 0.87 – 1.13% |
| Phosphorus (P) | 0.030% max |
| Sulfur (S) | 0.030% max |
WP9 is a low-alloy steel grade used for high-temperature service in power plants, boilers, and piping systems, defined in standards like ASTM A335 and ASTM A182.
| Element | Composition Range |
|---|---|
| Chromium (Cr) | 8.0 – 10.0% |
| Molybdenum (Mo) | 0.90 – 1.10% |
| Carbon (C) | ≤ 0.15% |
| Manganese (Mn) | ≤ 0.60% |
| Silicon (Si) | ≤ 1.00% |
| Phosphorus (P) | ≤ 0.030% |
| Sulfur (S) | ≤ 0.030% |
| Iron (Fe) | Balance |
WP9 is selected for piping or components operating at elevated temperatures (typically 500–600°C range) where a balance between cost, high-temperature strength, and corrosion/oxidation resistance is required.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Agent,Importer,Exporter,Trading Company,Seller,Other
Year Established:
2010
Total Annual:
1000000-5000000
Employee Number:
116~209
Ecer Certification：
Verified Supplier
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