ASTM A135 Standard Specification for Electric-Resistance-Welded Steel Pipe.ASTM A135电阻焊接钢管标准规范。

This specification covers two grades of electric-resistance-welded steel pipe intended for conveying gas, vapor, water or other liquid. The steel shall be made by either or both basic-oxygen or electric-furnace processes. Steel may be cast in ingots or may be strand cast. The pipe shall be manufactured from flat rolled steel in individual lengths or continuous length by electric-resistance or electric-induction welding without the addition of extraneous material. The weld seam of electric-resistance welded pipe to Grade B pipe shall be heat treated after welding or processed in such a manner that no untempered martensite remains. Tensile and chemical requirements of the steel are provided. Specimens of the steel pipes are subject to flattening test and hydrostatic test. A nondestructive electric test, either electromagnetic (eddy current) or ultrasonic test, may be preferred as an alternate to the hydrostatic test.

本规范涵盖了用于输送气体、蒸汽、水或其他液体的两种等级的电阻焊接钢管。钢材应采用碱性氧气或电炉工艺中的一种或两种制造。钢可以铸成钢锭，也可以铸成铸坯。管道应由扁钢制成，可采用电阻焊或电感应焊以单个长度或连续长度制造，不添加任何外来材料。电阻焊管与B级管的焊缝应在焊接后进行热处理，或以不残留未回火马氏体的方式进行加工。提供了钢的拉伸和化学要求。钢管试样应进行压扁试验和静水压试验。非破坏性电测试，无论是电磁（涡流）还是超声波测试，都可以作为静水压测试的替代方案。

ASTM A135, identical with ASME SA-135, is the standard specification for electric-resistance-welded steel pipe. It covers two grades of ERW steel pipe in NPS 2 to NPS 30 [DN 50 to DN 750], with nominal (average) wall thickness up to 0.500″ [12.7 mm], and in nominal sizes NPS 3/4 to NPS 5 [DN 20 to DN 125] with nominal (average) wall thickness 0.083″ [2.11 mm] to 0.134″ [3.40 mm], depending on size. Pipe having other dimensions may be furnished provided such pipe complies with all other requirements of this specification.

ASTM A135是电阻焊接钢管的标准规范，与ASME SA-135相同。它涵盖了NPS 2至NPS 30[DN 50至DN 750]的两种等级的ERW钢管，公称（平均）壁厚高达0.500英寸[12.7毫米]，公称尺寸为NPS 3/4至NPS 5[DN 20至DN 125]，公名（平均）管壁厚为0.083英寸[2.11毫米]至0.134英寸[3.40毫米]，具体取决于尺寸。如果管道符合本规范的所有其他要求，则可以提供其他尺寸的管道。

The ASTM A135 ERW steel pipes are intended for conveying gas, vapor, water or other liquid; only Grade A is adapted for flanging and bending. The selection of this ERW pipe for various applications depends on its dimensions, properties, and conditions of service. The pipe may be furnished either non-expanded or cold expanded at the option of manufacturer. When pipe is cold expanded, the amount of expansion shall not exceed 1.5% of the outside diameter of pipe size.

ASTM A135 ERW钢管用于输送气体、蒸汽、水或其他液体；只有A级适用于翻边和弯曲。为各种应用选择这种ERW管取决于其尺寸、性能和使用条件。制造商可选择提供非膨胀或冷膨胀管道。当管道冷膨胀时，膨胀量不得超过管道外径的1.5%。

Chemical Composition of ASTM A135 ASTM A135的化学成分

*The steel from which the ASTM A135 ERW pipe is made shall conform to the chemical requirements prescribed in this table, based on heat analysis.

根据热分析，制造ASTM A135 ERW管的钢材应符合本表规定的化学要求。

Mechanical Property of ASTM A135 ASTM A135的机械性能

*The yield strength shall be determined by the offset method utilizing 0.2% of the gauge length or by the total extension under load method using 0.5% of the gauge length.

*屈服强度应通过使用0.2%标距长度的偏移法或使用0.5%标距长度在负载下的总延伸法来确定。

Manufacture & Heat Treatment制造和热处理

The steel shall be made by either or both of the following processes: basic-oxygen or electric furnace. The steel may be cast in ingots or may be strand cast. In modern industry, ASTM A135 ERW steel pipes, either Grade A or Grade B, are generally made by a high-frequency electric-resistance welding process. The pipe shall be manufactured from flat rolled steel (plate) in individual lengths or in continuous length by electric-resistance or electric-induction welding without the addition of extraneous material. In simple words, no filler metal is required. The weld seam of ERW pipe to ASTM A135 Grade B shall be heat treated after welding to a minimum temperature of 1000°F [540°C] or processed in such a manner that no untempered martensite remains.

钢材应通过以下任一或两种工艺制成：碱性氧气或电动家具。钢可以铸成锭，也可以铸成铸坯。在现代工业中，ASTM A135 ERW钢管，无论是A级还是B级，通常都是通过高频电阻焊接工艺制成的。管道应由扁钢（板）制成，可采用电阻焊或电感应焊以单个长度或连续长度制造，不添加任何外来材料。简单地说，不需要填充金属。符合ASTM A135 B级的ERW管焊缝应在焊接后进行热处理，最低温度为1000°F[540°C]，或以不残留未回火马氏体的方式进行处理。

Surface Appearance & End Preparation表面外观和端部处理

The ASTM A135 ERW steel pipes shall be reasonably straight and free of defects. Surface imperfections in excess of 12.5% of the nominal wall thickness shall be avoided. The pipes may be furnished with plain end, beveled end, or threaded end. Especially, ERW pipes furnished to SCH 10 shall be plain end only. All inside and outside cutting burrs shall be removed. Each length of threaded pipe shall be provided with one coupling for connection purpose.

ASTM A135 ERW钢管应合理笔直，无缺陷。应避免表面缺陷超过标称壁厚的12.5%。管道可配备平端、斜端或螺纹端。特别是，提供给SCH 10的ERW管应仅为平端。应清除所有内外切割毛刺。每段螺纹管应配备一个联轴器进行连接。

Inspection & Test检验与测试

Strict quality control shall be implemented to ensure the good quality of ASTM A135 ERW steel pipes. This includes chemical analysis of each heat lot, tension test, dimensional inspection, visual examination, hydrostatic test, flattening test, or non-destructive test (NDT) when required by the purchaser.

应实施严格的质量控制，以确保ASTM A135 ERW钢管的良好质量。这包括每个热批次的化学分析、张力试验、尺寸检查、目视检查、水压试验、平整试验或买方要求的无损检测（NDT）。