Which standard number does the SUS302HQ come from

It belongs to the Japanese standard material.

302HQ stainless steel is a stainless steel developed on the basis of 304 in order to improve its cold forming performance, the addition of copper makes the cold work hardening tendency of the steel small, the cold work hardening rate is reduced, and large cold deformation can be obtained under a small forming force.

1. 302HQ stainless steel corresponding grades: 1. National standard GB-T standard: digital grade:

S30488, new grade: 06Cr18Ni9Cu3, old grade: 0Cr18Ni9Cu3,2, American standard:

ASTMA standard: S30430, SAE standard: 302HQ, UNS standard:

XM7,3, Japanese standard JIS standard: SUSXM7,4, German standard DIN standard: European standard EN standard:

X3CRNICU18-9-4, French NF standard: Z6CNU18-10, British BS standard, Sweden: NTR standard:

2. Chemical composition of 302HQ stainless steel: carbon C: , silicon Si:, manganese Mn: , phosphorus P: , sulfur S:, chromium Cr:, nickel Ni:, molybdenum Mo:, nitrogen N:—, copper Cu:, other elements:

3. Physical properties of 302HQ stainless steel: density density (20).

kg/dm3:"—, Melting point :—Specific heat capacity (0 100 ) kg (", thermal conductivity w (:"", thermal conductivity w (, coefficient of linear expansion (10-6 k).

0~100℃:" ", linear expansion coefficient (10-6 k), rate (20).

.mm2/m):", longitudinal modulus of elasticity.

20℃）/gpa:"-, Magnetic: None.

4. Mechanical properties of 302HQ stainless steel: Delivery status:"Bar cutting processing solution treatment, hot pressure processing without solution treatment", Solid solution pickling of plates, Tensile strength (rm mpa):

480, Tensile strength (:204, elongation a %: 40, section shrinkage (z %)60.

302HQ stainless steel application field: mainly used for cold heading fasteners, deep drawing and other cold-formed components.

Japanese standard. 302HQ stainless steel corresponding grades:

1. National standard GB-T standard: digital grade: S30488, new grade: 06Cr18Ni9Cu3, old grade: 0Cr18Ni9Cu3

2. American standard: ASTMA standard: S30430, SAE standard: 302HQ, UNS standard: XM7

3. Japanese standard JIS standard: SUSXM7

4. German standard DIN standard: European standard EN standard: X3CRNICU18-9-4, French standard NF standard: Z6CNU18-10, British standard BS standard, Sweden: NTR standard: .

The difference between SUS304 2B and SUS30408

Hello, 1. SUS30408 is an upgrade of SUS304. S30408 stainless steel chemical composition, from the chemical composition **, it is known that the chemical composition of S30408 in the CR content increased by one content, and the content of P was also reduced. To put it simply, it's a slight improvement over the SS304.

2. The implementation standards are different. S30408 is the new standard SUS304 GB T24511 2009 standard, which is mainly used in pressure equipment, boilers, pressure vessel flanges, etc. For specific requirements, please refer to the GB T24511 2009 standard, which mainly regulates thickness tolerances, chemical composition, etc.

3. The numbers are different. S30408 is the UNS number, which is a stainless steel material, equivalent to China's 0Cr18Ni9 (the new grade is 06Cr19Ni10), the American ASTM standard 304 stainless steel, and the Japanese standard stainless steel is a common material in stainless steel, with a density of 7 93g cm3, which is also called 18 8 stainless steel in the industry. High temperature resistance of 800 degrees, with good processing performance and high toughness, it is widely used in industrial and furniture decoration industry and food and medical industry.