ASTM A333/A333M

ASTM A333/A333M Standard Specification for Seamless and Welded Steel Pipe for Low-Temperature Service and Other Applications with Required Notch Toughness.   ASTM A333/A333M低溫和其他應用中具有所需缺口韌性的無縫和焊接鋼管標準規範。

ASTM A333/A333M specification covers wall seamless and welded carbon and alloy steel pipe intended for use at low temperatures. The pipe shall be made by the seamless or welding process with the addition of no filler metal in the welding operation. All seamless and welded pipes shall be treated to control their microstructure. Tensile tests, impact tests, hydrostatic tests, and nondestructive electric tests shall be made in accordance to specified requirements.

ASTM A333/A333M規範涵蓋了低溫下使用的壁無縫和焊接碳和合金鋼管。管道應采用無縫或焊接工藝製造，焊接操作中不添加填充金屬。所有無縫管和焊接管應進行處理，以控製其微觀結構。應按照規定要求進行拉伸試驗、衝擊試驗、靜水壓試驗和無損電氣試驗。

What is ASTM A333 standard?  ASTM A333標準是什麽？

ASTM A333 is the standard specification for seamless and welded carbon and alloy steel pipe for low temperature service or other applications requiring notch toughness.

ASTM A333是用於低溫服務或其他需要缺口韌性的應用的無縫和焊接碳和合金鋼管的標準規範。

Scope範圍

Several grades of ferritic steel are included. Some product sizes may not be available under this specification because heavier wall thicknesses have an adverse affect on low-temperature impact properties. The pipe shall be made by the seamless or welding process with the addition of no filler metal in the welding operation. All seamless and welded pipes shall be treated to control their microstructure. Tensile tests, impact tests, hydrostatic tests, and nondestructive electric tests shall be made in accordance to specified requirements.

包括幾種等級的鐵素體鋼。根據本規範，某些日皮视频APP下载尺寸可能不可用，因為較厚的壁厚會對低溫衝擊性能產生不利影響。管道應采用無縫或焊接工藝製造，焊接操作中不添加填充金屬。所有無縫管和焊接管應進行處理，以控製其微觀結構。應按照規定要求進行拉伸試驗、衝擊試驗、靜水壓試驗和無損電氣試驗。

ASTM A333 alloy pipe shall be made by the seamless or welding process with the addition of no filler metal in the welding operation. All seamless and welded pipes shall be treated to control their microstructure. Tensile tests, impact tests, hydrostatic tests, and nondestructive electric tests shall be made in accordance to specified requirements. Some product sizes may not be available under this specification because heavier wall thicknesses have an adverse affect on low-temperature impact properties.

ASTM A333合金管應采用無縫或焊接工藝製造，焊接操作中不添加填充金屬。所有無縫管和焊接管應進行處理，以控製其微觀結構。應按照規定要求進行拉伸試驗、衝擊試驗、靜水壓試驗和無損電氣試驗。根據本規範，某些日皮视频APP下载尺寸可能不可用，因為較厚的壁厚會對低溫衝擊性能產生不利影響。

ASTM A333 steel pipe production includes a series of visual surface imperfections to guarantee that they have been properly manufactured. ASTM A333 steel pipe shall be subject to rejection if surface imperfections acceptable are not scattered, but appear over a large area in excess of what is considered a workmanlike finish. The finished pipe shall be reasonably straight.

ASTM A333鋼管日皮视频网站包括一係列可見的表麵缺陷，以確保其得到正確製造。如果可接受的表麵缺陷不是分散的，而是出現在大麵積上，超過了被認為是熟練的表麵處理，則ASTM A333鋼管應被拒收。成品管道應合理筆直。

Surface inspection requirements表麵檢查要求

Surface imperfections that penetrate more than 12½ % of the nominal wall thickness or encroach on the minimum wall thickness shall be considered defects. ASTM A333 steel pipe with such defects shall be given one of the following dispositions:滲透超過標稱壁厚12½%或侵占最小壁厚的表麵缺陷應被視為缺陷。有此類缺陷的ASTM A333鋼管應進行以下處理之一：

• The defect may be removed by grinding provided that the remaining wall thickness is within specified limits.
• 如果剩餘壁厚在規定範圍內，可以通過研磨去除缺陷。
• Repaired in accordance with the repair welding provisions.
• 按照補焊規定進行修複。
• The section of pipe containing the defect may be cut off within the limits of requirements on length.
• 含有缺陷的管段可以在長度要求的範圍內切割。
• The defective pipe may be rejected.
• 有缺陷的管道可能會被拒收。

Referenced Documents參考文件

• A370 Test Methods and Definitions for Mechanical Testing of Steel Products
• A370鋼製品機械試驗的試驗方法和定義
• A671 Specification for Electric-Fusion-Welded Steel Pipe for Atmospheric and Lower Temperatures
• A671常溫和低溫用電熔焊鋼管規範
• A999/A999M Specification for General Requirements for Alloy and Stainless Steel Pipe
• A999/A999M合金和不鏽鋼管一般要求規範
• E23 Test Methods for Notched Bar Impact Testing of Metallic Materials
• E23金屬材料缺口衝擊試驗的試驗方法

What Is The Difference Between A106 And A333 Pipes?  A106和A333管道有什麽區別？

ASTM A333 Grade 6 pipe is a low-temperature carbon steel pipe that is typically used in applications where the pipe will be exposed to temperatures below -45°C. Because of its superior notch toughness, it performs well in cryogenic conditions and has demonstrated durability at temperatures as low as -452°F. This makes it the perfect candidate for applications where the pipe will be subject to cold temperatures throughout construction and/or operation.

ASTM A333 6級管道是一種低溫碳鋼管，通常用於管道暴露在-45°C以下溫度的應用。由於其卓越的缺口韌性，它在低溫條件下表現良好，並在低至-452°F的溫度下表現出耐用性。這使其成為管道在整個施工和/或運行過程中會受到低溫影響的應用的完美候選者。

A333 Seamless Pipe (ASME S/A-333) comes in nominal pipe sizes 1/4″ to 24″ O.D.

A333無縫管（ASME S/A-33）的公稱管道尺寸為1/4〃至24〃外徑。

Pipe dimensions range from 1/2″ to 24″ O.D. for A333 welded pipes (ASME S/A-333).

A333焊接管道的管道尺寸範圍為1/2〃至24〃外徑（ASME S/A-33）。

Carbon and alloy steel pipe with a nominal (average) wall thickness intended for low temperature operation is covered by ASTM A333. There are several ferritic steel grades included in this standard. A106 GR. B Carbon Steel Seamless Pipes Some product sizes may not be available under this specification because heavier wall thicknesses harm low-temperature impact properties.

ASTM A333涵蓋了用於低溫操作的標稱（平均）壁厚的碳和合金鋼管。本標準中包括幾種鐵素體鋼牌號。A106 GR.B碳鋼無縫管根據本規範，某些日皮视频APP下载尺寸可能不可用，因為較厚的壁厚會損害低溫衝擊性能。

The difference between ASTM A333 and ASTM A106 is that ASTM A333 is a low-temperature carbon steel pipe that can be used as a structural pipe, while ASTM A106 is a non-structural carbon pipe that is used in high-temperature applications.

ASTM A333和ASTM A106之間的區別在於，ASTM A333是一種可用作結構管的低溫碳鋼管，而ASTM A106是一種用於高溫應用的非結構碳管。

The ASTM A106 Gr.B carbon steel Pipe is valued for its high tensile strength and toughness, high oxidation resistance, and prolonged durability. Additionally, the Seamless Pressure ASTM A106 Pipe has wide applications in industries such as the gas and oil industry, water, heating, pipeline construction, and many others.

ASTM A106 Gr.B碳鋼管因其高抗拉強度和韌性、高抗氧化性和持久耐用性而受到重視。此外，無縫壓力ASTM A106管道在天然氣和石油工業、供水、供暖、管道建設等許多行業都有廣泛的應用。

However, the ASTM A106 Gr.B carbon steel Pipe should be used only at temperatures less than 430°C, as exceeding this temperature can result in a reduction in its mechanical properties. The pipe is therefore not suitable for very high-temperature services.

然而，ASTM A106 Gr.B碳鋼管應僅在低於430°C的溫度下使用，因為超過此溫度會導致其機械性能降低。因此，該管道不適合高溫環境。

Mechanical requirements of ASTM A333 alloy pipe  ASTM A333合金管的機械要求

*The elongation values are furnished on the basis of standard round 2 inch or 50 mm(or 4D) specimens.

*伸長率值基於標準圓形2英寸或50毫米（或4D）試樣提供。

*Elongation of Grade 11 is for all walls and small sizes tested in full section.

*11級伸長率適用於全斷麵測試的所有牆壁和小尺寸。

Chemical composition of ASTM A333 alloy pipe  ASTM A333合金管的化學成分

*For Grade 1 and 6, each reduction of 0.01% C below 0.30%, an increase of 0.05 % Mn above 1.06 % would be permitted to a max. of 1.35%.

*對於1級和6級，每降低0.30%以下0.01%的碳，允許增加1.06%以上0.05%的錳，最高可達1.35%。

*For Grade 6, the limit for columbium may be increased up to 0.05 % on heat analysis and 0.06 % on product analysis.

*對於6級，在熱分析中，铌的限量可提高至0.05%，在日皮视频APP下载分析中可提高至0.06%。

*Generally, the carbon equivalent C.E = [C + Mn/6 + (Cr + Mo + V)/5 + (Ni + Cu)/15] shall not exceed 0.43% by heat analysis.

*通常，通過熱分析，碳當量C.E=[C+Mn/6+（Cr+Mo+V）/5+（Ni+Cu）/15]不得超過0.43%。

Production specification range of low temperature pipe products 低溫管材日皮视频APP下载的日皮视频网站規格範圍

Strike temperature condition 衝擊溫度條件

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The most important and desired changes in alloy steel are合金鋼最重要和最理想的變化是

Alloy steels are made by combining carbon steel with one or several alloying elements, such as manganese, silicon, nickel, titanium, copper, chromium and aluminum. These metals are added to produce specific properties that are not found in regular carbon steel. The elements are added in varying proportions (or combinations) making the material take on different aspects such as increased hardness, increased corrosion resistance, increased strength, improved formability (ductility); the weldability can also change.

合金鋼是通過將碳鋼與一種或多種合金元素（如錳、矽、鎳、鈦、銅、鉻和鋁）結合而製成的。添加這些金屬是為了產生普通碳鋼中沒有的特定性能。這些元素以不同的比例（或組合）添加，使材料具有不同的方麵，如增加的硬度、增加的耐腐蝕性、增加的強度、改善的可成形性（延展性）；可焊性也會改變。

• Increased hardenability.
• 提高淬透性。
• Increased corrosion resistance.
• 提高耐腐蝕性。
• Retention of hardness and strength.
• 保持硬度和強度。
• Nearly all alloy steels require heat treatment in order to bring out their best properties.
• 幾乎所有的合金鋼都需要熱處理才能發揮其最佳性能。

Alloying Elements & Their Effects合金元素及其作用

• Chromium – Adds hardness. Increased toughness and wear resistance.
• 鉻——增加硬度。增加韌性和耐磨性。
• Cobalt – Used in making cutting tools; improved Hot Hardness (or Red Hardness).
• 鈷——用於製造切削工具；提高了熱硬度（或紅硬度）。
• Manganese – Increases surface hardness. Improves resistance to strain, hammering & shocks.
• 錳–增加表麵硬度。提高抗應變、抗錘擊和抗衝擊性。
• Molybdenum – Increases strength. Improves resistance to shock and heat.
• 鉬-增加強度。提高抗衝擊性和耐熱性。
• Nickel – Increases strength & toughness. Improves corrosion resistance.
• 鎳-增加強度和韌性。提高耐腐蝕性。
• Tungsten – Adds hardness and improves grain structure. Provides improved heat resistance.
• 鎢–增加硬度並改善晶粒結構。提供更好的耐熱性。
• Vanadium – Increases strength, toughness and shock resistance. Improved corrosion resistance.
• 釩——增加強度、韌性和抗衝擊性。提高了耐腐蝕性。
• Chromium-Vanadium – Greatly improved tensile strength. It is hard but easy to bend and cut.
• 鉻釩——大大提高了抗拉強度。它很硬，但很容易彎曲和切割。