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  • 490 Marine Pipe
  • 490 Marine Pipe
  • 490 Marine Pipe
  • 490 Marine Pipe

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490 Marine Pipe
Used for the manufacture of marine boilers and superheaters, as well as pipes for Class I, II, and III pressure piping systems, as well as for the transportation of liquefied gas and the manufacture of ship pipes for bulk chemicals.
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Product Description



CategoryBrandTensile Strength
(MPa)		Yield Strength
(MPa)		Elongation Rate (%)
Carbon Steel And Carbon Manganese Steel320320～440≥195≥25
360360～480≥215≥24
410410～530≥235≥22
Austenitic Stainless Steel
00Cr17Ni14Mo2≥480≥175≥35
0Cr18Ni9Ti≥520≥205≥35


CategorySteel Grade And GradeCSiMnPSCrMoNiTi
Carbon Steel And Carbon Manganese Steel320≤0.16≤0.350.40～0.70≤0.035≤0.035≤0.25≤0.10≤0.30/
360≤0.17≤0.350.40～0.80≤0.035≤0.035≤0.25≤0.10≤0.30/
410≤0.21≤0.350.40～1.20≤0.035≤0.035≤0.25≤0.10≤0.30/
Austenitic Stainless Steel
00Cr17Ni14Mo2≤0.030≤1.00≤2.00≤0.030≤0.03016.00～18.002.00～3.0012.00～15.00/
0Cr18Ni9Ti≤0.08≤1.00≤2.00≤0.030≤0.03017.00~19.00/8.00～11.00/

Type Of Steel PipeOuter Diameter (D)Steel Pipe Wall Thickness (S)
Cold-Drawn Pipe
Outer Diameter Of Steel Pipe (Mm)Permissible Deviation (Mm)Steel Pipe Wall Thickness (Mm)Permissible Deviation (Mm)
＞30～50±0.3≤30±10％
＞50～219±0.8％
Hot-Rolled Pipe
＞219±1.0％＞20±10％
StandardBrandTensile Strength
（MPa）		Yield Strength
（MPa）		Elongation
（％）
GB/T5312320320～410≥195≥25
360360～480≥215≥24
410410～530≥235≥22
460460～580≥265≥21
490490～610≥285≥21
StandardBrandChemical Composition（％）
CSiMnPS
GB/T5312320≤0.16≤0.350.40～0.70≤0.035≤0.035
360≤0.17≤0.350.40～0.80≤0.035≤0.035
410≤0.21≤0.350.40～1.20≤0.035≤0.035
460≤0.22≤0.350.80～1.40≤0.035≤0.030
490≤0.23≤0.350.80～1.50≤0.035≤0.030


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Company Profile

Senxin (Shandong) Steel Group Co., Ltd. is located in Jinan, "the capital of Spring City", with a registered capital of 88 million yuan and a total area of 380,000 square meters. It is a large-scale industrial and trade company specializing in the sales and manufacturing of carbon steel, galvanized and color coating. In 2016, it passed the 5A enterprise certification, established a foreign trade company in 2018, and established the "Senxin" business department in 2023, focusing on exports. As a leading enterprise in the industry, the company has established long-term cooperative partnership with many enterprises at home and abroad in line with the concept of "serious and responsible, sincere and win-win". It provides strong support for the development of the global industry.

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