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Baoding Canglong Stainless Steel Precision Co., Ltd.

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Stainless steel castings
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Heat-resistant steel

●  stainless steel castings have been widely used in atomic energy, ocean development, and petrochemical and other industrial sectors.

●  Chemical Composition

grade

Chemical composition

C

Si

Mn

P≤

S≤

Cr

Ni

Mo

Others

304/  0Cr18Ni9

≤0.08

≤1.00

≤2.00

0.045

0.030

18.0-20.0

8.0-11

N≤0.10

316

≤0.08

≤1.00

≤2.00

0.045

0.030

16.0-18.0

10.0-14.0

2.00-3.00

SCS13

≤0.08

≤2.00

≤2.00

0.040

0.040

18.00-21.00

8.0-11.0

17-4PH

0.07

1

1

0.01

0.03

15.5-17.5

3.0-5.0

 

Nb  0.15-0.4

●  Mechanical properties

material designation

Mechanical properties

σb≥

σ0.2≥

δ≥

HB≥

11-6-6

785

380

5

185

ZQSn10-1

310

170

2

885

Heat-resistant steel refers to a kind of alloy steel with high strength and good chemical stability under the environment of high-temperature. It consists of oxidation-resistant steel (or called non-peeling steel under high temperature) and refractory steel. The former requires good chemical stability, but it undertakes lower load. While the latter demands higher high-temperature strength and relevant components which operate under high-temperature in some industrial sectors, such as boiler, turbine, power machinery, aviation and petrochemical industry. These components require not only high-temperature strength and resistance to high-temperature oxidation corrosion, but also fixed tenacity, excellent machinability and weldability, as well as certain structure stability. Besides, heat-resistant steel also develop some new kinds of low chromium nickel based steels.

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