ASTM A199/A199M Specification for Seamless Cold-Drawn Intermediate Alloy-Steel Heat-Exchanger tubes and Condenser Tubes.

ASTM A199/A199M無縫冷拔中間合金鋼換熱器管和冷凝器管規範。

ASTM A199 specification covers minimum-wall-thickness, seamless cold-drawn intermediate alloy steel tubes intended for use in heat exchangers, condensers, and similar heat transfer apparatus. These tubes are used for transporting fluids and gases at high temperatures and pressures.

ASTM A199規範涵蓋了用於換熱器、冷凝器和類似傳熱裝置的無縫冷拔中間合金鋼管的最小壁厚。這些管子用於在高溫高壓下輸送流體和氣體。

The grades of steel covered by ASTM A199 are commonly used in industries such as petrochemical, power generation, and chemical processing, where high-temperature performance and resistance to corrosion are required. The choice of grade depends on several factors, including the specific application, environmental conditions, and required mechanical properties.

ASTM A199涵蓋的鋼種通常用於石化、發電和化學加工等需要高溫性能和耐腐蝕性的行業。等級的選擇取決於幾個因素，包括具體應用、環境條件和所需的機械性能。

ASTM A199 tubes are produced using various manufacturing processes, including hot finished or cold-finished, and the tubes are then subjected to various tests such as flattening test, hydrostatic test or nondestructive electric test to ensure they meet the specified requirements.

ASTM A199管材采用各種製造工藝草莓福利视频，包括熱加工或冷加工，然後對管材進行各種測試，如平整試驗、水壓試驗或無損電測試，以確保其符合規定的要求。

Overall, ASTM A199 tubes are an important component of industrial heat transfer systems, providing a safe and efficient means for transporting fluids and gases at high temperatures and pressures. 總體而言，ASTM A199管是工業傳熱係統的重要組成部分，為在高溫高壓下輸送流體和氣體提供了一種安全有效的方法。

Scope範圍

1. 1. This specification covers several grades of minimum-wall-thickness, chromium-molybdenum and chromium-molybdenum-silicon, seamless, cold-drawn, intermediate alloy steel tubes for heat exchangers, condensers, and similar heat transfer apparatus. 

1.1本規範涵蓋了用於換熱器、冷凝器和類似傳熱裝置的幾種等級的最小壁厚鉻鉬和鉻鉬矽無縫冷拔中間合金鋼管。

1. 2. The tubing sizes usually furnished to this specification are �to 3 in. [3.2 to 76.2 mm] in outside diameter. Tubing having other dimensions may be furnished provided such tubes comply with all other requirements of this specification.

1.2本規範中通常提供的管道尺寸為外徑3英寸[3.2至76.2毫米]。可以提供具有其他尺寸的管子，前提是這些管子符合本規範的所有其他要求。

1. 3. Mechanical property requirements do not apply to tubing smaller than �in. [3.2 mm] in inside diameter or 0.015 in. [0.4 mm] in thickness.

1.3機械性能要求不適用於小於英寸的管材。內徑為[3.2毫米]或厚度為0.015英寸[0.4毫米]。

1. 4. The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification. The inch-pound units shall apply unless the "M" designation of this specification is specified in the order.

1.4以英寸-磅單位或國際單位表示的值應單獨視為標準值。在文本中，國際單位製顯示在括號中。每個係統中所述的值不是完全等效的；因此，每個係統都必須獨立使用。將兩個係統的值結合起來可能會導致不符合規範。除非訂單中指定了本規範的“M”名稱，否則應采用英寸-磅單位。

ASTM A199 specification covers several grades of ferritic steel, including Grade T5, Grade T9, Grade T11, Grade T22, and Grade T91.

ASTM A199規範涵蓋了幾種等級的鐵素體鋼，包括T5級、T9級、T11級、T2級和T91級。

Chemical Components (%) of ASTM A199   ASTM A199的化學成分（%）

* Ni 0.40 max; V 0.18-0.25; Cb 0.06-0.10; N 0.03-0.07; Al 0.04 max

Mechanical Properties of ASTM A199   ASTM A199的機械性能

Usage使用

Steel pipe are ubiquitous and can be found underground and within residential walls, laboratories, and commercial and industrial structures. Seamless steel pipe transport fluids including water, natural gas, waste and air. Three manufacturing methods exist to produce steel pipes.

鋼管無處不在，可以在地下、住宅牆、實驗室以及商業和工業結構中找到。無縫鋼管輸送流體，包括水、天然氣、廢物和空氣。草莓福利视频鋼管有三種製造方法。

Seamless steel pipes are produced using an extrusion mold. Welded steel pipes are produced by rolling a sheet of steel into a tube and welding the seam. Seamless steel pipes are less expensive. The third method is casting. Molten steel is poured into a casting mold.

無縫鋼管是使用擠壓模具草莓福利视频的。焊接鋼管是通過將鋼板卷成管並焊接接縫而製成的。無縫鋼管更便宜。第三種方法是鑄造。鋼水被倒入鑄模中。

Our steel pipes and tubes are the preferred choice for processes under the following conditions:草莓视频黄色软件的鋼管是以下條件下工藝的首選：

• high temperatures高溫
• aggressive media (e.g. acid and lye)腐蝕性介質（如酸和堿液）
• and/or high pressure和/或高壓

We have a team of experienced professionals with years of experience in manufacturing.

草莓视频黄色软件擁有一支經驗豐富的專業團隊，擁有多年的製造經驗。

Material Comparison Tables (ASTM ℃KS, JIS, DIN, BS, NBN, NF, UNI)

材料對照表（ASTM℃KS、JIS、DIN、BS、NBN、NF、UNI）

A 199 - Seamless Cold Drawn Intermediate Alloy Steel Heat Exchange and Condenser Tubes    

A199無縫冷拔中間合金鋼換熱冷凝器管

Delivery Condition:交貨條件：
Heat treatment,Annealed, Normalized, Normalized and Tempered熱處理、退火、正火、正火和回火

Surface treatment:表麵處理：
Oil-dip, Varnish, Passivation, Phosphating, Shot Blasting Painting as requested.根據要求進行浸油、清漆、鈍化、磷化、噴丸塗裝。