ASTM A333低溫管
低溫鋼管規格
- SA333和A333–1、3、6和8級
- A671 CC65 CL22 EFW(焊接替代A333)
- 法蘭:A/SA 350 LF2,LF3
- 配件:A/SA-420 WPL6,WPL3
尺寸範圍
- 1/4“標稱至24”外徑。
- 附表:STD、40、XH、60、80、100、120、140、160、XXH
- 計劃外厚壁管的厚度可達4英寸。
衝擊溫度條件:
| Crade | The lowest temperature for strike test | |
| ℉ | ℃ | |
| -50 | -45 | |
| -50 | -45 | |
ASTM A333合金管的機械要求:
| Grade | Tensile Strength (MPa) | Yield Point (MPa) | Elongation (%) | |
| Y | X | |||
| Grade 1 | ≥380 | ≥205 | ≥35 | ≥25 | 
| Grade 3 | ≥450 | ≥240 | ≥30 | ≥20 | 
| Grade 4 | ≥415 | ≥240 | ≥30 | ≥16.5 | 
| Grade 6 | ≥415 | ≥240 | ≥30 | ≥16.5 | 
| Grade 7 | ≥450 | ≥240 | ≥30 | ≥22 | 
| Grade 8 | ≥690 | ≥515 | ≥22 | |
| Grade 9 | ≥435 | ≥315 | ≥28 | |
| Grade 10 | ≥550 | ≥450 | ≥22 | |
| Grade 11 | ≥450 | ≥240 | ≥18 | |
ASTM A333鋼管化學成分(%):
| Grade | Chemical Composition (%) | ||||||||||
| C | Si | Mn | P | S | Cr | Ni | Cu | Mo | V | Al | |
| Grade 1 | ≤0.30 | 0.40-1.06 | ≤0.025 | ≤0.025 | |||||||
| Grade 3 | ≤0.19 | 0.18-0.37 | 0.31-0.64 | ≤0.025 | ≤0.025 | 3.18-3.82 | |||||
| Grade 4 | ≤0.12 | 0.18-0.37 | 0.50-1.05 | ≤0.025 | ≤0.025 | 0.44-1.01 | 0.47-0.98 | 0.40-0.75 | 0.04-0.30 | ||
| Grade 6 | ≤0.30 | ≥0.10 | 0.29-1.06 | ≤0.025 | ≤0.025 | ||||||
| Grade 7 | ≤0.19 | 0.13-0.32 | ≤0.90 | ≤0.025 | ≤0.025 | 2.03-2.57 | |||||
| Grade 8 | ≤0.13 | 0.13-0.32 | ≤0.90 | ≤0.025 | ≤0.025 | 8.40-9.60 | |||||
| Grade 9 | ≤0.20 | 0.40-1.06 | ≤0.025 | ≤0.025 | 1.60-2.24 | 0.75-1.25 | |||||
| Grade 10 | ≤0.20 | 0.10-0.35 | 1.15-1.50 | ≤0.03 | ≤0.015 | ≤0.15 | ≤0.25 | ≤0.015 | ≤0.50 | ≤0.12 | ≤0.06 | 
| Grade 11 | ≤0.10 | ≤0.35 | ≤0.6 | ≤0.025 | ≤0.025 | ≤0.50 | 35.0-37.0 | ≤0.50 | |||
熱處理:
1級和6級應進行熱處理,以控製其微觀結構。
ASTM A333 6級和ASME SA 333 6級經過熱處理,在920攝氏度下達到正火狀態,並控製微觀結構。
低溫管材草莓视频下载免费草莓福利视频規範範圍
| No. | Order No. | Size description | ||
| O.D. /mm | W.T. /mm | Legnth /m | ||
| 1 | A333 Gr.6 A333 Gr.6/X42NS | 10-127 | 1-20 | 6-12.0 | 
| 42-114.3 | 3.5-6 | 6-12.2 | ||
| 42-114.3 | 6-12 | 6-12.2 | ||
| 114.3-180 | 3.8-8 | 6-12.2 | ||
| 114.3-180 | 8-22 | 6-12.2 | ||
| 68-180 | 10-14 | 6-12.2 | ||
| 69-254 | 14-55 | 6-12.2 | ||
| 140-340 | 6-8 | 6-12.2 | ||
| 140-368 | 8-42 | 6-12.2 | ||
| 318-720 | 14-50 | 4-12.5 | ||
| 2 | A333 Gr.6/X52QS | 42-114.3 | 3.5-12 | 6-12.2 | 
| 114.3-180 | 3.8-22 | 6-12.2 | ||
| 68-254 | 10-40 | 6-12.2 | ||
| 140-368 | 6-40 | 6-12.2 | ||
| 318-720 | 14-40 | 4-12.5 | ||
| 140-368 | 6-25 | 6-12.2 | ||
| 318-720 | 14-25 | 4-12.5 | ||
| 3 | 16MnDG | 10-127 | 1-20 | 6-12.0 | 
| 42-114.3 | 3.5-12 | 6-12.2 | ||
| 114.3-180 | 3.8-22 | 6-12.2 | ||
| 68-254 | 10-55 | 6-12.2 | ||
| 140-368 | 6-42 | 6-12.2 | ||
| 318-720 | 14-120 | 4-12.5 | ||
特定衝擊要求
低溫給水管所用的原材料是高錳比(大於1%)與低碳比(小於0.23%)的鋁鎮靜。對於需要認證為LTCS的低溫管道,應根據ASTM A 333第8節的強製性要求,在低溫下進行附加衝擊試驗。
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