What is the material of the national standard corresponding to S420MC?

The national standard corresponding to S420MC is weathering steel.

Weathering steel is a series of low-alloy steel between ordinary steel and stainless steel, which is made of ordinary carbon steel with a small amount of copper, nickel and other corrosion-resistant elements, and has the characteristics of high-quality steel, such as toughness, plastic ductility, forming, welding and cutting, abrasion, high temperature, fatigue resistance, etc.; The weather resistance is 2 8 times that of ordinary carbon steel, and the paintability is twice that of ordinary carbon steel.

At the same time, it has the characteristics of rust resistance, corrosion resistance, life extension, thinning and consumption reduction, labor saving and energy saving. Weathering steel is mainly used in steel structures that are exposed to the atmosphere for a long time such as railways, vehicles, bridges, towers, photovoltaics, and high-speed projects.

Grade: S420MC

Standard: EN 10149-2-1996 Hot-rolled flat products made of high yield point steel for cold forming. Part 2: Delivery conditions for thermomechanically rolled steel.

Uses: It is used for automotive structural parts such as automotive girders and beams that require good cold forming performance and have high or high strength requirements.

Chemical composition: C: Si: Mn: P: S: Nb: V: Ti:

Yield strength: 420 MPa

Tensile strength: 480 620 MPa

Extension: 16

There is no correspondence between the steel and the national standard material.

But: 1. S420MC Baosteel can be produced directly.

2. It can be replaced by QSTE420TM.

Corresponding to Baosteel's QSTE420TM, there is no national standard.

S42020 corresponding grades: 1, national standard GB-T standard: digital grades:

S42037, new grade: Y30CR13, old grade: Y3CR13,2, American standard:

ASTMA standard: S42020, SAE standard: 42023, UNS standard:

420F, 3, Japanese standard JIS standard: SUS420F, 4, German standard DIN standard: , 5, European standard EN standard:

x29crs13。

S42020 Chemical Composition: Carbon C:, Silicon Si:, Manganese Mn:, Phosphorus P:, Sulfur S:, Chromium Cr:, Nickel Ni: Charge Xujia, Molybdenum Mo:

Charge allowable addition, nitrogen n:—, copper cu:— other elements:

S42020 Physical Properties: Density density (20).

kg, melting point: 1454 1510, specific heat capacity(0 100 ) kg(, thermal conductivity w (

100 , thermal conductivity w (

500 -: coefficient of linear expansion.

10-6/k)

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

0 595, resistivity (20).

ω.mm2 m), longitudinal modulus of elasticity.

20) GPA: 219, Magnetic: Yes.

S42020 Mechanical Properties: Delivery Condition: Bar Solution Treatment, Plate Solution Pickling, Tensile Strength (RM MPa):

735, Elongation strength (:540, elongation a %: 12, section shrinkage (z %):

40。5. S42020 heat treatment: hardness HBW: annealed 235, quenched and tempered 217, hardness HRB: 99, heating temperature: 800 900, heating method: air cooling or slow cooling.

S42020 Applications: Parts and standard parts for automatic lathe machining, such as bolts, nuts, etc.

S42020 is based on 420J2 (3Cr13) to increase the flow to above and phosphorus to below, so as to improve the easy cutting performance of King Kong, and has 420J2 (3Cr13) atmospheric corrosion resistance and weak acid corrosion resistance, but poor weldability.

1. S42020 corresponding grades: 1. National standard GB-T standard: digital grade:

S42037, new grade: Y30CR13, old grade: Y3CR13,2, American standard:

ASTMA standard: S42020, SAE standard: 42023, UNS standard:

420F, 3, Japanese standard JIS standard: SUS420F, 4, German standard DIN standard: , 5, European standard EN standard:

x29crs13。

2Cr13 steel is mainly used for machining, and has a better cost performance than normal stainless steel, so it has been more widely used in the case of low requirements for corrosion resistance.

After quenching, 2Cr13 can obtain better mechanical properties, good machinability, and the microstructure and morphology are martensitic type.

S42020 is based on BAI420J2 (3Cr13) to increase the flow to above and phosphorus to below, thereby improving the easy cutting performance of King Kong Zhi, and has DAO 420J2 (3Cr13) atmospheric corrosion resistance and weak acid corrosion resistance, but poor weldability.

1. S42020 corresponding grades: 1. National standard GB-T standard: digital grade:

S42037, new grade: Y30CR13, old grade: Y3CR13,2, American standard:

ASTMA standard: S42020, SAE standard: 42023, UNS standard:

420F, 3, Japanese standard JIS standard: SUS420F, 4, German standard DIN standard: , 5, European standard EN standard:

x29crs13。

420F (S42020) is a US standard free-cutting martensitic stainless steel according to ASTM A 959-2004

The chemical composition of 420F (S42020) is shown below

The S420MC is similar to the domestic QSTE420TM. S420MC is used for automotive structural parts such as girders and beams that require good cold forming performance and have high or high strength requirements.

Yield strength: 420 MPa

Tensile strength: 480 620 MPaExtension: 16

Scope of use: S420MC series is fine-grained steel with good cold formability. It is used for automotive structural parts such as automotive girders and beams that require good cold forming performance and have high or high strength requirements.

What kind of steel is S420? What is the standard? What is the material corresponding to the national standard?

Hello, the corresponding national standard of S420MC is weathering steel. Weathering steel is between ordinary steel and stainless steel series of low-alloy steel series closed, weathering steel is made of ordinary carbon steel with a small amount of copper, nickel and other corrosion-resistant elements, with the strength of high-quality steel, plastic duct, forming, welding, abrasion, high temperature, fatigue resistance and other characteristics; The weathering resistance is 2 8 times that of ordinary carbon steel, and the paintability is twice that of ordinary carbon steel.

<> refers to a weathering steel structure. Weathering steel is mainly to add a certain amount of copper, nickel and other metal elements to ordinary steel, so that it has more advantages than ordinary steel, due to the addition of these elements, resulting in this kind of steel has good corrosion resistance. Its weather resistance is extremely strong, two to eight times that of ordinary carbon steel.

The material has many advantages of hailstorming, such as: high temperature resistance, wear resistance and anti-manufacturing. The material is widely used in buildings, bridges and other building materials exposed to the air due to its excellent characteristics, so as to prolong the service life of building materials, safe and environmentally friendly.