JIS G3454 is Janpness standard for Carbon steel pipe for pressure service.

JIS G3454是压力用碳钢管的韧性标准。

Carbon Steel JIS G 3454 Tubes are manufactured as per JIS Specification. CS JIS G3454 Seamless Tubes mechanical properties can be varied greatly by heat treating. Carbon Steel JIS G3454 Specification Covers Carbon steel tubes for machine structural purposes. CS JIS G3454 pipes are used for pressure conditions at an limited of maximum temperature of 350 Degree C.

碳钢JIS G 3454管按照JIS规范制造。CS JIS G3454无缝管的机械性能可以通过热处理而发生很大变化。碳钢JIS G3454规范涵盖了用于机器结构目的的碳钢管。CS JIS G3454管道用于最高温度为350摄氏度的压力条件。Carbon Steel JIS G3454 Tubes are mainly used in automobile, hydraulic system and precision machinery parts for cars and cylinder.

JIS G3454 Carbon Steel Grade STPG 370 Specification Covers Carbon Steel Tubes for Pressure Service. We offer CS JIS G3454 available grades STPG 410, STPG 370 and a diverse range of finish options to meet the appearance requirements and performance for most applications. Tubos is the largest stockholder of JIS G3454 STPG 410 Tubes and JIS G3454 STPG 370 Tubes with huge inventory.

JIS G3454 STPG 370级碳钢规范涵盖了压力设备用碳钢管。我们提供CS JIS G3454可用等级STPG 410、STPG 370和各种表面处理选项，以满足大多数应用的外观要求和性能。Tubos是JIS G3454 STPG 410管材和JIS G3454 STGG 370管材的最大股东，库存量巨大。

Chemical Compositions(%) of JIS G3454  JIS G3454的化学成分（%）

Mechanical properties机械性能

The tubes shall be manufactured by seamless process, electric resistance welding process, or butt welding process, and those of other grades shall be manufactured by seamless process or electric resistance welding process. The tube shall be as manufactured or as cold-finished condition, or they shall be subjected to appropriate heat treatment.

管子应采用无缝工艺、电阻焊工艺或对接焊工艺制造，其他等级的管子应采用无接缝工艺或电阻焊工艺制造。管子应为制造状态或冷加工状态，否则应进行适当的热处理。

The tubes shall be practically straight. and the two ends shall be at right angles to the axis of the tube. The tubes shall be free from defects detrimental to practical use.

管子应几乎笔直。两端应与管子轴线成直角。管子应无不利于实际使用的缺陷。

Method of Sampling Specimen试样取样方法

Note (2) The expression "same dimensions" means the same outside diameter as well as the same wall thickness.

注（2）“相同尺寸”一词是指相同的外径和相同的壁厚。

Marking标记

Each pipe having passed the inspection shall be marked with the following items. However, the smaller pipes or other pipes specified by the purchaser may be bundled together and marked for each bundle by a suitable means. In both cases, the order of arranging the marked items is not specified.

每根通过检验的管道应标记以下项目。但是，较小的管道或买方指定的其他管道可以捆绑在一起，并通过适当的方式标记每捆。在这两种情况下，都没有指定标记项目的排列顺序。
When approved by the purchaser, a part of the items may be omitted.经买方批准后，可以省略部分项目。
(1) Letter symbol of grade等级字母符号
(2) Letter symbol indicating the manufacturing processes(3)表示制造过程的字母符号（3）
(3) Dimensions( 4 )尺寸（4）
(4) Manufacturer's name or its identifying brand 制造商名称或其识别品牌
(5) Letter symbol denothing the supplementary quality requirement, Z字母符号表示补充质量要求，Z

Note( 3 )附注（3）
The letter symbol indicating the manufacturing processes(3) shall be as follows, provided that the dash may be omitted leaving a blank.

表示制造工艺（3）的字母符号应如下，但破折号可以省略，留下空白。
Hot-finished seamless steel pipe - S - H热加工无缝钢管-S-H
Cold-finished seamless steel pipe- S - C冷加工无缝钢管-S-C
Electric resistance welded steel pipe other than hot-finished and cold -finished ones - E - G电阻焊接钢管（热加工和冷加工除外）-E-G
Hot-finished electric resistance welded steel pipe- E - H热加工电阻焊钢管-E-H
Cold-finished electric resistance welded steel pipe - E - C冷加工电阻焊钢管-E-C

Note( 4 )附注（4）
The dimensions shall be expressed as follows.尺寸应表示如下。
Nominal diameter × Nominal wall thickness公称直径×公称壁厚
Example: 50A × Sch 40, 2 B × Sch 40示例：50A×Sch 40，2 B×Sch 4 0