17-4pH Ss630 Steel Polishing Shaft Bar

The world's advanced production technology and testing technology ensure the high quality of our 201 stainless steel plate, 321 stainless sheet, 304 Cold Drawn Polished Steel Pipe. The mission of our company is to deliver the highest quality products with best price. It is really our hope to market, by joint efforts, each trade and friendship to our mutual advantage. Our product development will introduce more consumer opinions and more concepts of health, environmental protection and energy saving. Compared with peers, our company has abundant professionals and reasonable structure of talent team.

Feature

Parameter

Chemical Composition of Stainless Steel shaft(%)

C≤0.15 

Si≤1.0 

Mn≤2.0 

Cr: 16.0～18.0 

Ni: 6.0-8.0

S ≤0.03 

P≤0.045

Property 

Tensile Strength σb (MPa) ≥520

Conditional Yield Strength σ0.2 (MPa)≥205

Elongation Rate δ5 (%)：≥40

Area of Reduction ψ (%)：≥60

Hardness ≤187HB;≤90HRB;≤200HV

Thermal Treatment Standard and Metallographic Organization:

Hot treatment standard: solid solution 1010 ℃~1150 ℃ fast cooling.

The rust-proof mechanism of stainless steel is that alloy elements form a dense oxide film to insulate oxygen contact and prevent further oxidation. 

Reason for rust:

1. In a chloride-containing environment, the corrosion rate is fast and the corrosion rate is faster than ordinary low carbon steel. Therefore, the environment in which the stainless steel is used should be wiped, dusted, and cleaned.

2. The alloying elements are not soluble in the matrix, resulting in low alloy content in the matrix structure and poor corrosion resistance.

3. This titanium-free and niobium-free material has a natural tendency to intergranular corrosion. Adding titanium and niobium and then stabilizing the configuration can reduce intergranular corrosion.

We make sure that all our 17-4pH Ss630 Steel Polishing Shaft Bar are rigorously debugged several times prior to leaving the factory to ensure that each customer receives high quality products. Talents are the foundation of an enterprise, science and technology are the source of development. The society is constantly developing. As always, we will continue to explore and innovate, focus on the development of new products, improve technical quality, and dedicate more new products to the society. Quality is factory's lifestyle abide by the contract', conforms on the market requirement, joins within the market competition by its superior quality likewise as provides far more comprehensive and great company for shoppers to let them develop into huge winner.

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