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| 起源の場所: | 中国 |
| ブランド名: | YUHONG |
| 証明: | API, PED , ABS, DNV, BV, LR |
| モデル番号: | ASTM A860 WPHY60 炭素鋼偏心減速機 |
| 最小注文数量: | 1台のパソコン |
|---|---|
| パッケージの詳細: | PLY木製のケースまたはパレット |
| 受渡し時間: | 7日間 |
| 支払条件: | LC、T/T |
| 製品名: | 偏心還元剤 | 標準: | ASTM A860、ASME SA860 |
|---|---|---|---|
| 材料: | WPHY60、グレード60 | サイズ: | 1/2 "から48" |
| 利用できる壁厚さ: | SCH.10S ～ SCH.XXS | 形: | 偏心還元剤 |
| タイプ: | シームレス | ||
| ハイライト: | ASTM A860 WPHY60 パイプ継手、炭素鋼 Gr.60 偏心減速機 | ||
ASTM A860 WPHY 60 Carbon Steel Eccentric Reducer ASME B16.9 Buttweld Pipe Fittings
ASTM A860 WPHY60 Carbon Steel Eccentric Reducer B16.9 Buttweld Fitting is a high-strength, welded pipeline component used to connect two pipes of different diameters. It is manufactured to ASTM A860 material specifications, features an off-set centerline (eccentric) to maintain a flat top or bottom, conforms to ASME B16.9 dimensional standards, and is joined to the pipeline by butt-welding.
You better choose ASTM A860 fittings when the following conditions are ALL (or mostly) present in your project:
The connecting pipe is API 5L Grade X42 to X70 (High-Yield Pipe): If your pipeline is specified as API 5L X60, X65, or X70, you must use A860 fittings.
Operating Pressure is > 1000 psi (High-Pressure Systems): Used extensively in long-distance transmission pipelines, gas compressor stations, and offshore high-pressure flowlines.
Design Temperatures are Low (Sub-Zero): When the Minimum Design Metal Temperature (MDMT) is below -20°F (-29°C) down to -50°F (-46°C). (e.g., Arctic pipelines, cryogenic gas processing).
Pipeline Diameter is Large: Typically used for NPS 4" up to 48" (DN100 to DN1200) where heavy wall thickness and high structural integrity are required.
The Service is Sour / Wet H₂S (with special ordering): When the pipeline transports sour crude or natural gas containing Hydrogen Sulfide (H₂S) – provided you order it with NACE MR0175 / ISO 15156 compliance and HIC (Hydrogen Induced Cracking) testing.
Chemical Composition of ASTM A860 WPHY60 Pipe Fittings Carbon Steel Eccentric Reducer B16.9 Buttweld Fittings
| Grade | C | Mn | S | P | Si | Ni | Cr | Mo | Cu | Ti | V | Cb | Al |
| WPHY 60 | 0.20 | 1.00-1.45 | 0.03 | 0.01 | 0.15-0.40 | 0.50 | 0.30 | 0.25 | 0.35 | 0.05 | 0.10 | 0.06 |
Mechanical Properties of ASTM A860 WPHY60 Pipe Fittings Carbon Steel Eccentric Reducer B16.9 Buttweld Fittings
| Element | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| WPHY 60 | 515-690 | 415 | 28 % |
Eccentric vs. Concentric Reducer
Eccentric Reducer: The centerline of the smaller end is offset from the centerline of the larger end. It features a flat side (usually the bottom).
Why Eccentric? In horizontal pipeline installations, it prevents the accumulation of gas (at the top) or liquid/sludge (at the bottom) at the transition point, ensuring smooth flow and easy pigging (pipeline cleaning).
Applications
Oil & Gas Transmission (High-pressure pipeline systems)
Offshore and Subsea platforms
Chemical and Petrochemical plants (where high strength and low-temperature toughness are required)
Power generation (steam/water lines with high pressure)
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