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difference between ASTM 430 and ASTM 304 stainless steel

difference between ASTM 430 and ASTM 304 stainless steel

ASTM 430 and ASTM 304 stainless steel are American standards are stainless steel.Here is difference between ASTM 430 and ASTM 304 stainless steel.

United States | ASTM: 304

Grade: 0Cr18Ni9

Chemical composition mass fraction% | C: ≤ 0.07

Chemical composition mass fraction% | Si: ≤ 1.00

Chemical composition mass fraction% | Mn: ≤ 2.00

Chemical composition mass fraction% | P: ≤ 0.035

Chemical composition mass fraction% | S: ≤ 0.030

Chemical composition mass fraction% | Ni: 8.00 ~ 11.00

Chemical composition mass fraction% | Cr: 17.00 ~ 19.00

Heat treatment / ℃ : 1010 ~ 1150 fast-cooling

Elongation stress σ p0.2/MPa ≥ : 205

Tensile strength σ b / MPa ≥ : 520

Elongation δ 5 (%) ≥ : 40

Section shrinkage ψ ≥ : 60

Impact test Ak / J ≥ :

HBS ≥ : 187

HBR ≥ : 90

HV ≥ : 200

Features and Applications: heat-resistant stainless steel as the most widely used, such as food equipment, general chemical equipment, industrial equipment originally could.

China GB/T5216: 1Cr17

United States | ASTM: 430

Name = Stainless Steel

Record Number = 36

Grade = 1Cr17

Material Status = hot rolling, forging or heat treatment

σ b \ Mpa = ≥ 450

δ 5 \% = ≥ 22

ψ \% = ≥ 50

Hardness \ HB = ≤ 183

Heat treatment =

Chemical composition = material chemical composition elements ratio (%): Carbon C: ≤ 0.12; Chromium Cr: 16.00 ~ 18.00; Manganese Mn: ≤ 1.00; Phosphorus P: ≤ 0.035; Sulfur S: ≤ 0.030; silicon Si: ≤ 0.75

Properties and Applications = Heat treatment: annealing 780 ~ 850 ℃ air cooling or slow cooling; σ 0.2 ≥ 205; good general corrosion resistance of steel, building decoration, heavy oil burner parts, household appliances, household appliances parts used.

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