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

ASTM A199/A199M无缝冷拔中间合金钢换热器管和冷凝器管规范。

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规范涵盖了用于换热器、冷凝器和类似传热装置的无缝冷拔中间合金钢管的最小壁厚。这些管子用于在高温高压下输送流体和气体。

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涵盖的钢种通常用于石化、发电和化学加工等需要高温性能和耐腐蚀性的行业。等级的选择取决于几个因素，包括具体应用、环境条件和所需的机械性能。

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管材采用各种制造工艺生产，包括热加工或冷加工，然后对管材进行各种测试，如平整试验、水压试验或无损电测试，以确保其符合规定的要求。

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. 总体而言，ASTM A199管是工业传热系统的重要组成部分，为在高温高压下输送流体和气体提供了一种安全有效的方法。

Scope范围

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本规范涵盖了用于换热器、冷凝器和类似传热装置的几种等级的最小壁厚铬钼和铬钼硅无缝冷拔中间合金钢管。

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本规范中通常提供的管道尺寸为外径3英寸[3.2至76.2毫米]。可以提供具有其他尺寸的管子，前提是这些管子符合本规范的所有其他要求。

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机械性能要求不适用于小于英寸的管材。内径为[3.2毫米]或厚度为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-磅单位或国际单位表示的值应单独视为标准值。在文本中，国际单位制显示在括号中。每个系统中所述的值不是完全等效的；因此，每个系统都必须独立使用。将两个系统的值结合起来可能会导致不符合规范。除非订单中指定了本规范的“M”名称，否则应采用英寸-磅单位。

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

ASTM A199规范涵盖了几种等级的铁素体钢，包括T5级、T9级、T11级、T2级和T91级。

Chemical Components (%) of ASTM A199   ASTM A199的化学成分（%）

* 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的机械性能

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.

钢管无处不在，可以在地下、住宅墙、实验室以及商业和工业结构中找到。无缝钢管输送流体，包括水、天然气、废物和空气。生产钢管有三种制造方法。

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.

无缝钢管是使用挤压模具生产的。焊接钢管是通过将钢板卷成管并焊接接缝而制成的。无缝钢管更便宜。第三种方法是铸造。钢水被倒入铸模中。

Our steel pipes and tubes are the preferred choice for processes under the following conditions:我们的钢管是以下条件下工艺的首选：

• high temperatures高温
• aggressive media (e.g. acid and lye)腐蚀性介质（如酸和碱液）
• and/or high pressure和/或高压

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

我们拥有一支经验丰富的专业团队，拥有多年的制造经验。

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

材料对照表（ASTM℃KS、JIS、DIN、BS、NBN、NF、UNI）

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

A199无缝冷拔中间合金钢换热冷凝器管

Delivery Condition:交货条件：
Heat treatment,Annealed, Normalized, Normalized and Tempered热处理、退火、正火、正火和回火

Surface treatment:表面处理：
Oil-dip, Varnish, Passivation, Phosphating, Shot Blasting Painting as requested.根据要求进行浸油、清漆、钝化、磷化、喷丸涂装。