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301 Stainless Steel Shaft

301Stainless Steel Grade 1Cr17Ni7. 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 Yield Strength(N/mm2) ≥205 Tensile Strength ≥ 520 Elongation Rate(%)≥40 Hardness: HB ≤187 HRB≤90 HV ≤200 Density: 7.93 g·cm-3 Specific Heat:...

Feature

1.Nice appearance of cold-rolled product gloss
2.Nice high temperature strength
3.Nice work-hardening (after processing weakly magnetic)
4.Non-magnetic state solution
5.Suitable for architectural, construction and other applications

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.


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