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

JIS G3454是壓力用碳鋼管的韌性標準。

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.

碳鋼JIS G 3454管按照JIS規範製造。CS JIS G3454無縫管的機械性能可以通過熱處理而發生很大變化。碳鋼JIS G3454規範涵蓋了用於機器結構目的的碳鋼管。CS JIS G3454管道用於最高溫度為350攝氏度的壓力條件。Carbon Steel JIS G3454 Tubes are mainly used in automobiles, 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級碳鋼規範涵蓋了壓力設備用碳鋼管。日皮视频在线观看提供CS JIS G3454可用等級STPG 410、STPG 370和各種表麵處理選項，以滿足大多數應用的外觀要求和性能。Tubos是JIS G3454 STPG 410管材和JIS G3454 STGG 370管材的最大股東，庫存量巨大。

Chemical Compositions(%) of JIS G3454  JIS G3454的化學成分（%）

Mechanical properties機械性能

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.

管子應采用無縫工藝、電阻焊工藝或對接焊工藝製造，其他等級的管子應采用無接縫工藝或電阻焊工藝製造。管子應為製造狀態或冷加工狀態，否則應進行適當的熱處理。

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.

管子應幾乎筆直。兩端應與管子軸線成直角。管子應無不利於實際使用的缺陷。

Method of Sampling Specimen試樣取樣方法

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

注（2）“相同尺寸”一詞是指相同的外徑和相同的壁厚。

Marking標記

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.

每根通過檢驗的管道應標記以下項目。但是，較小的管道或買方指定的其他管道可以捆綁在一起，並通過適當的方式標記每捆。在這兩種情況下，都沒有指定標記項目的排列順序。
When approved by the purchaser, a part of the items may be omitted.經買方批準後，可以省略部分項目。
(1) Letter symbol of grade等級字母符號
(2) Letter symbol indicating the manufacturing processes(3)表示製造過程的字母符號（3）
(3) Dimensions( 4 )尺寸（4）
(4) Manufacturer's name or its identifying brand 製造商名稱或其識別品牌
(5) Letter symbol denothing the supplementary quality requirement, Z字母符號表示補充質量要求，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.

表示製造工藝（3）的字母符號應如下，但破折號可以省略，留下空白。
Hot-finished seamless steel pipe - S - H熱加工無縫鋼管-S-H
Cold-finished seamless steel pipe- S - C冷加工無縫鋼管-S-C
Electric resistance welded steel pipe other than hot-finished and cold -finished ones - E - G電阻焊接鋼管（熱加工和冷加工除外）-E-G
Hot-finished electric resistance welded steel pipe- E - H熱加工電阻焊鋼管-E-H
Cold-finished electric resistance welded steel pipe - E - C冷加工電阻焊鋼管-E-C

Note( 4 )附注（4）
The dimensions shall be expressed as follows.尺寸應表示如下。
Nominal diameter × Nominal wall thickness公稱直徑×公稱壁厚
Example: 50A × Sch 40, 2 B × Sch 40示例：50A×Sch 40，2 B×Sch 4 0