What is 0Cr17Ni4Cu4Nb stainless steel? 

0Cr17Ni4Cu4Nb is a martensitic precipitation hardening stainless steel, corresponding to the Japanese brand SUS630. It has high strength, high hardness, good welding performance and corrosion resistance. It has been widely used in valves, shafts and chemical fiber industries, as well as high-strength parts with certain corrosion resistance requirements.

What is the metallographic structure of 0Cr17Ni4Cu4Nb stainless steel?

Metallographic structure: The structure is characterized by precipitation hardening.

What are the characteristics of 0Cr17Ni4Cu4Nb stainless steel?

Copper-added precipitation hardening steel grade. Used in the manufacture of shafts and steam turbine components.

Precipitation-hardening martensitic stainless steel composed of copper, niobium/columbium, low carbon content, better corrosion resistance and weldability than general martensitic stainless steel, similar to 18-8 stainless steel, simple heat treatment process, cutting Good performance, but difficult to meet the cryogenic processing.

What is the chemical composition of folded 0Cr17Ni4Cu4Nb stainless steel?

0Cr17Ni4Cu4Nb stainless steel is a martensitic stainless steel with very good oxidation and corrosion resistance. The chemical composition of 0Cr17Ni4Cu4Nb stainless steel is:

Carbon C:≤0.07

Silicon Si:≤1.00

Manganese Mn:≤1.00

Sulfur S:≤0.030

Phosphorus P :≤0.035

Chromium Cr:15.50~17.50

Nickel Ni:3.00~5.00

Copper Cu:3.00~5.00

Niobium Nb:0.15~0.45

What are the folding mechanical properties of folded 0Cr17Ni4Cu4Nb stainless steel? 

SUS630 alloy is precipitated, quenched, martensitic stainless steel, and this grade has high strength, hardness and corrosion resistance. After heat treatment, the mechanical properties of the product are improved and a compressive strength as high as 1100-1300 mpa (160-190 ksi) can be achieved. This grade cannot be used above 300°C (570F) or at very low temperatures. It has good corrosion resistance to the atmosphere and diluted acids or salts. It has the same corrosion resistance as 304 and 430.

Tensile strength σb (MPa): aged at 480°C, ≥1310; aged at 550°C, ≥1060; aged at 580°C, ≥1000; aged at 620°C, ≥930

Conditional yield strength σ0.2 (MPa): aged at 480°C, ≥1180; aged at 550°C, ≥1000; aged at 580°C, ≥865; aged at 620°C, ≥725

Elongation δ5 (%): aging at 480°C, ≥10; aging at 550°C, ≥12; aging at 580°C, ≥13; aging at 620°C, ≥16

Reduction of area ψ (%): aging at 480°C, ≥40; aging at 550°C, ≥45; aging at 580°C, ≥45; aging at 620°C, ≥50

Hardness: solid solution, ≤363HB and ≤38HRC; 480℃ aging, ≥375HB and ≥40HRC; 550℃ aging, ≥331HB and ≥35HRC; 580℃ aging, ≥302HB and ≥31HRC; 620℃ aging, ≥277HB and ≥28HRC

What is the heat treatment process for folding 0Cr17Ni4Cu4Nb stainless steel?

Heat Treatment Specifications:

1) Rapid cooling at 1020~1060℃ for solid solution;

2) Aging at 480°C, after solution treatment, air cooling at 470~490°C;

3) Aging at 550°C, after solution treatment, air cooling at 540~560°C;

4) Aging at 580°C, after solution treatment, air cooling at 570~590°C;

5) Aging at 620°C, after solution treatment, air cooling at 610~630°C. Metallographic structure: The structure is characterized by precipitation hardening.

What is the delivery status of folded 0Cr17Ni4Cu4Nb stainless steel?

Generally, it is delivered in a state of heat treatment, and the type of heat treatment is specified in the contract; if it is not specified, it is delivered in a state of no heat treatment.

What are the standards for folding 0Cr17Ni4Cu4Nb stainless steel?

0Cr17Ni4Cu4Nb stainless steel national standards and performance introduction:

What is the welding method of 0Cr17Ni4Cu4Nb stainless steel?

0Cr17Ni4Cu4Nb stainless steel is a martensitic stainless steel with high carbon content. It is commonly used in knives and other cutting tools, as well as surgical and medical instruments. Welding 0Cr17Ni4Cu4Nb stainless steel can be tricky because it has a high carbon content and is prone to cracking. Here are some tips for welding 0Cr17Ni4Cu4Nb stainless steel:

- Use a low current setting on the welder. This will help prevent cracks from forming.

- Use gases suitable for stainless steel. Argon is a good choice because it protects the weld from oxidation.

- Preheat the metal before welding. This will help prevent cracking.

- When welding, use short, fast welds. This will help keep the metal from overheating and causing cracks.

What are the benefits of 0Cr17Ni4Cu4Nb stainless steel?

0Cr17Ni4Cu4Nb stainless steel is a martensitic stainless steel with high carbon content. It has good toughness and corrosion resistance and is commonly used in knives, surgical instruments and food processing equipment.

0Cr17Ni4Cu4Nb stainless steel has excellent hardness and wear resistance. It is resistant to fresh water, chlorine and most acids. 0Cr17Ni4Cu4Nb stainless steel also has good pitting corrosion resistance in chloride environment.

0Cr17Ni4Cu4Nb stainless steel contains a large amount of chromium, which makes it have good corrosion resistance and high hardness.

What are the applications of folded 0Cr17Ni4Cu4Nb stainless steel?

403 stainless steel has many different applications. Some of the most common include:

- Offshore platforms, helidecks, other platforms Food industry Pulp and paper industry Aerospace (turbine blades) Mechanical parts Nuclear waste, used to manufacture parts with high corrosion resistance and high strength, such as bearings and steam turbine parts.