What is the Rockwell hardness of SUS404C

SUS440C belongs to high-carbon and high-chromium martensitic stainless steel, and the implementation standard: JIS G4303-2012

The chemical composition of SUS440C is shown in the following figure:

SUS440C is heat-treated with Rockwell hardness values shown below

Material: SUS404C Hardness: HRC60 2 Hardening Layer Depth:

Surface roughness: m Straightness: 70 m Below 1000mm Thickness of chrome plating layer:

3 m-5 m.Shaft Outer Diameter Tolerance G6 5, Chrome Plated Hollow Shaft: Due to the characteristics of its hollow structure, the hollow shaft greatly reduces the weight and simplifies the structure, and its interior is suitable for penetrating the measuring wire.

Can 404 be heat treated and hardened.

It also depends on the heat treatment results.

Hardness HB 187HRB 90HV 200, specific parameters:

1. Yield strength

2. Tensile strength b=520MPa

3. Elongation δ5=40%.

4. Young's modulus e=194020MPa

5. Hardening index n=

6. Thick anisotropy index r00=

r45=r90=

7. Density =

8. Specific heat c(20).

SUS301 hardness : 187HB; ≤90hrb;≤430hv。

SUS301 (17Cr-7Ni) stainless steel can be obtained after cold working. SUS301 stainless steel is used in railway vehicles, belt conveyors, bolts and nuts, springs, etc.

Features of SUS301:

1) High strength and hardness are obtained after cold working deformation;

2) Compared with ordinary steel grades, it has excellent high temperature strength, fatigue resistance and corrosion resistance, which can be used in trams to achieve light weight and reduce costs.

SUS301 Chemical Composition:

1) Carbon C:

2) Silicon SI:.

3) Manganese mn: .

4) Sulfur S:

5) Phosphorus p:

6) Chromium Cr:.

7) Nickel ni:.

Dear, hello, I am glad to answer for you the difference between the hardness of SUS310S and SUS304 A310S has a high hardness 310S304 stainless steel pipe has better corrosion resistance and ductility than 310; The hardness of 310 stainless steel pipe is higher, so its wear resistance and fatigue strength are better than that of 304 stainless steel pipe. In addition, 310S stainless steel pipes are generally used for elastic purposes, such as making springs. The 304 stainless steel pipe has good corrosion resistance and is generally used in food, kitchen and bathroom, water treatment, etc.

Answer: 310 stainless steel is better than 304 stainless steel in terms of quality, because 310 stainless steel is better than 304 stainless steel in terms of purity, hardness, safety, and even better than 304 stainless steel. Stainless steel is austenitic chromium-nickel stainless steel has good oxidation resistance, corrosion resistance, because of the higher percentage of chromium and nickel, 310s has much better creep strength, can continue to work at high temperatures, and has good high temperature resistance.

Stainless steel is a common material in stainless steel, with a density of g cm3, which is also called 18 8 stainless steel in the industry. High temperature resistance 800, with good processing performance, high toughness characteristics, widely used in industry, furniture decoration industry and food and medical industry. The common labeling methods on the market include 0Cr18Ni9 and SUS304, of which 0Cr18Ni9 generally represents the national standard production, 304 generally represents the ASTM standard production, and SUS 304 represents the Japanese standard production.

304 is a versatile stainless steel that is widely used in equipment and parts that require good overall properties (corrosion resistance and formability). In order to maintain the corrosion resistance inherent in stainless steel, the steel must contain more than 18% chromium and more than 8% nickel. 304 stainless steel is a grade of stainless steel produced in accordance with the American ASTM standard.

The hardness of SUS316L is about 200. Melting Point: 1375 1450C; Solution treatment: 1010 1150C.

316L stainless steel is commonly used in pulp and paper equipment, heat exchangers, dyeing equipment, film processing equipment, pipes, exterior materials for buildings in coastal areas, and bracelets and cases for high-end watches. seawater equipment, chemicals, dyes, papermaking, oxalic acid, fertilizer and other production equipment; Photography, food industry, coastal facilities, ropes, CD rods, bolts, nuts.

316L stainless steel has good welding properties. All standard welding methods can be used for welding. When welding, according to the use, the source orange can be welded with 316CB, 316L or 309CB stainless steel packing rod or welding rod.

In order to obtain the best corrosion resistance, the welded sections of 316 stainless steel need to be annealed after welding. If 316L stainless steel is used, post-weld annealing is not required.

The hardness of SUS304 and SUS316 is 190HB

SUS316 belongs to the Japanese standard austenitic stainless steel, and the implementation standard: JIS G4303-2005

SUS316 stainless steel has greatly improved its corrosion resistance and high temperature strength due to the addition of MO elements. The corrosion resistance is better than that of SUS304 stainless steel, and it has good corrosion resistance in the production process of pulp and paper. And SUS316 stainless steel is also resistant to the erosion of the ocean and the aggressive industrial atmosphere.

Mainly used for: seawater equipment, chemicals, dyes, papermaking, oxalic acid, fertilizer and other production equipment; Photography, food industry, coastal facilities, ropes, CD rods, bolts, nuts.

The chemical composition of SUS316 stainless steel is shown in the following figure:

SUS304 belongs to the Japanese standard austenitic stainless steel, and the implementation standard: JIS G4303-2005

SUS304 stainless steel is a common material in stainless steel, with a density of g cm3, which is also called 18 8 stainless steel in the industry. As a versatile steel, it has good corrosion resistance, heat resistance, low temperature strength and mechanical properties; Good heat workability such as stamping and bending, no heat treatment hardening phenomenon (operating temperature -196 800). Corrosion-resistant in the atmosphere, If it is an industrial atmosphere or a heavily polluted area, it needs to be cleaned in time to avoid corrosion.

It is suitable for the processing, storage and transportation of food. It has good processability and weldability. Plate heat exchangers, bellows, household utensils, cabinets, indoor pipelines, water heaters, boilers, bathtubs), auto parts (windshield wipers, mufflers, molded products), medical appliances, building materials, chemicals, food industry, agriculture, ship parts, Xiaomi mobile phones, etc.

The chemical composition of SUS304 is shown in the following figure:

1: Grade 316Ti stainless steel.

Two: chemical composition.

c：≤ si≤ mn≤ p≤ s≤ ni crmo ti≥5*c%~

Three: the scope of application, the field of application:

316L stainless steel is added with MO, so its corrosion resistance, atmospheric corrosion resistance and high temperature strength are particularly good, and can be used under harsh conditions; Excellent work hardening (non-magnetic). Excellent strength at high temperatures. 316L stainless steel is an austenitic stainless steel and cannot be strengthened by heat treatment.

It has good strength, plasticity, toughness and cold formability, as well as good low-temperature properties. Due to the addition of 2% MO on the basis of Cr18Ni8, the steel is endowed with good resistance to reducing media and pitting resistance. It has suitable corrosion resistance in various organic acids, inorganic acids, alkalis, salts and seawater.

In reducing acidic media, its corrosion resistance is much better than that of 304

Four: Overview. The corrosion resistance of stainless steel is better than that of 304 stainless steel, and it has good corrosion resistance in the production process of pulp and paper. And 316 stainless steel is also resistant to the erosion of the ocean and the aggressive industrial atmosphere. In intermittent use below 1600 degrees and continuous use below 1700 degrees, 316 stainless steel has good oxidation resistance.

In the range of 800-1575 degrees, it is better not to act continuously on 316 stainless steel, but when 316 stainless steel is used continuously outside of this temperature range, the stainless steel has good heat resistance. 316L stainless steel has better resistance to carbide precipitation than 316 stainless steel, and can be used in the above temperature ranges. Annealing is carried out in the temperature range of 1850-2050 degrees, followed by rapid annealing, followed by rapid cooling.

It is resistant to high temperatures, easy to process, and high strength. 316L stainless steel, no post-weld annealing is required.

SUS 304 and SUS 316 are both austenitic stainless steels with a hardness value between HB120 and 140 after solid melt treatment.

Semi-martensitic stainless steel, after quenching and tempering, has high strength and toughness, and has good corrosion resistance and machinability in weak corrosive media with a temperature of no more than 30 degrees. It also has the ability to resist rust and corrosion under humid atmosphere and fresh water conditions, and has high thermal stability below 700 degrees. Good machinability, but poor machinability and weldability.

1. SUS410 corresponding grades: 1. National hardship cover as marked GB-T standard: digital grade:

S41010, new grade: 12CR13, old grade: 1CR13, 2, American standard:

ASTMA standard: S41000, SAE standard: 51410, UNS standard:

410,3, Japanese standard JIS standard: SUS410,4, German standard DIN standard:, 5, European standard EN standard:

x12cr13。

2. SUS410 chemical composition: carbon C: , silicon Si:, manganese Mn: , phosphorus P: , sulfur S:, chromium Cr:, nickel Ni: charge allowed, molybdenum Mo:, nitrogen N:—, copper Cu:—, other elements:

3. SUS410 physical properties: density density (20).

kg, melting point: 1480 1530, specific heat capacity(0 100 ) kg ( , thermal conductivity w (

100 , thermal conductivity w (

Linear expansion coefficient. 10-6/k)

0 100 :11, coefficient of linear expansion (10-6 k).

Resistivity (20).

.mm2 m), longitudinal modulus of elasticity.

20) GPA:200, Magnetic:Yes.

4. SUS410 mechanical properties: Wang Qi delivery status: bar solution treatment, plate solution pickling, tensile strength (rm mpa, elongation a, section shrinkage (z %) stuffy Qi 78.

5. SUS410 heat treatment: Hardness HBW: annealing 200, quenching and tempering 159, hardness HRB: 93, heating temperature: 800 900, heating method: air cooling or slow cooling.

SUS410 application field: It is mainly used for parts with high toughness requirements and stainless steel impact loads, such as knives, blades, fasteners, hydraulic press valves, pyrolysis sulfur corrosion resistant equipment, etc., and can also be used to make parts of equipment that are resistant to weak corrosive media at room temperature. Oxidation-resistant parts below 650 degrees.

Summary. Hello. SUS430 hardness is; Hardness HBW:

Annealing 183, hardness HRB: 83, heating temperature: 680 820, heating method:

Air cooled or slow SUS430 mechanical properties: Delivery condition: solution treatment of bars, solution pickling of plates, tensile strength (rm mpa):

450, elongation strength (, elongation a %: 22, section shrinkage (z %) 50.

What is the SUS430 hardness.

Hello. SUS430 hardness is; Hardness HBW: annealed 183, hardness HRB:

83, Heating temperature: 680 820, Heating mode: air cooling or slow SUS430 mechanical properties:

Delivery Status: Solution Treatment for Bars, Solution Pickling for Plates, Tensile Strength(RM MPa):450, Elongation Strength(, Elongation A %:

22, section shrinkage (z %)50.

Hello. SUS430 application field: mainly used in the production of Hno3 chemical equipment, such as absorption towers, heat exchangers, storage tanks, etc., thin plates are mainly used for building materials, daily necessities, automotive decorations, etc., for oxidation parts below 900 degrees, dispersers, furnace parts, oil nozzles, etc.

Although SUS430 tubing is a mature material, the challenges of the SUS430 tubing range of applications are constantly changing, and those industries that have higher requirements for the strength, corrosion resistance and cost control of SUS430 tubing have higher requirements for the process and quality of SUS430 tubing.