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Steel Castings for High Temperature and High Pressure Service
Steel Type |
Standard |
Country Code |
C(%) |
V(%) |
Si(%) |
Mn(%) |
P(%) |
S(%) |
Cr(%) |
Gr.WCB | A216 | ASTM | <0.3 | | <0.6 | <1.0 | <0.04 | <0.045 | <0.5 |
GS-C25 | 17245 | DIN | 0.18-0.23 | | 0.3-0.6 | 0.5-0.8 | <0.03 | <0.03 | <0.3 |
ZG240-450B | 16253 | GB | <0.2 | | <0.6 | 1.0-1.6 | <0.035 | <0.035 | |
SCPH1 | G5151 | JIS | <0.25 | | <0.6 | <0.7 | <0.04 | <0.04 | <0.25 |
Gr.WCC | A216 | ASTM | <0.25 | <0.03 | <0.6 | <1.2 | <0.04 | <0.045 | <0.2 |
SCPH1 | 7147 | CNS | <0.25 | | <0.6 | <0.7 | <0.04 | <0.04 | <0.25 |
SCPH11 | 7147 | CNS | <0.25 | | <0.6 | 0.5-0.8 | <0.04 | <0.04 | <0.35 |
ZG19MoG | 16253 | GB | 0.15-0.23 | | 0.3-0.6 | 0.5-1.0 | <0.035 | <0.035 | <0.3 |
SCPH11 | G5151 | JIS | <0.25 | | <0.6 | 0.5-0.8 | <0.04 | <0.04 | <0.35 |
Gr.WC1 | A217 | ASTM | <0.25 | | <0.6 | 0.5-0.8 | <0.04 | <0.045 | <0.35 |
Gr.2 | A336 | ASTM | <0.25 | | <0.6 | <0.7 | <0.035 | <0.03 | |
GS-22Mo5 | 17245 | DIN | 0.18-0.23 | | 0.3-0.6 | 0.5-0.8 | <0.03 | <0.03 | <0.3 |
SCPH2 | 7147 | CNS | <0.3 | | <0.6 | <1.0 | <0.04 | <0.04 | <0.25 |
ZG280-520 | 16253 | GB | <0.25 | | <0.6 | <1.2 | <0.035 | <0.035 | |
SCPH2 | G5151 | JIS | <0.3 | | <0.6 | <1.0 | <0.04 | <0.04 | <0.25 |
SCPH21 | 7147 | CNS | <0.2 | | <0.6 | 0.5-0.8 | <0.04 | <0.04 | 1.0-1.5 |
ZG15Cr1-MoG | 16253 | GB | 0.1-0.2 | | 0.3-0.6 | 0.5-0.8 | <0.035 | <0.035 | 1.0-1.5 |
SCPH21 | G5151 | JIS | <0.2 | | <0.6 | 0.5-0.8 | <0.04 | <0.04 | 1.0-1.5 |
Gr.WC6 | A217 | ASTM | 0.05-0.20 | | <0.6 | 0.5-0.8 | <0.04 | <0.045 | 1.0-1.5 |
Gr.6 | A336 | ASTM | <0.2 | | <0.6 | 0.5-0.8 | <0.035 | <0.03 | 1.0-1.5 |
GS-17Cr-Mo5-5 | 17245 | DIN | 0.15-0.20 | | 0.3-0.6 | 0.5-0.8 | <0.02 | <0.015 | 1.0-1.5 |
SCPH23 | 7147 | CNS | <0.2 | 0.15-0.25 | <0.6 | 0.5-0.8 | <0.04 | <0.04 | 1.0-1.5 |
SCPH23 | G5151 | JIS | <0.2 | 0.15-0.25 | <0.6 | 0.5-0.8 | <0.04 | <0.04 | 1.0-1.5 |
Gr.8 | A356 | ASTM | <0.2 | 0.05-0.15 | 0.2-0.6 | 0.5-0.9 | <0.035 | <0.03 | 1.0-1.5 |
GS-17Cr-MoV5-11 | 17245 | DIN | 0.15-0.20 | 0.2-0.3 | 0.3-0.6 | 0.5-0.8 | <0.02 | <0.015 | 1.2-1.5 |
SCPH32 | G5151 | JIS | <0.2 | | <0.6 | 0.5-0.8 | <0.04 | <0.04 | 2.00-2.75 |
Gr.WC9 | A217 | ASTM | 0.05-0.18 | | <0.6 | 0.4-0.7 | <0.04 | <0.045 | 2.00-2.75 |
SCPH32 | 7147 | CNS | <0.2 | | <0.6 | 0.5-0.8 | <0.04 | <0.04 | 2.00-2.75 |
ZG12Cr2-Mo1G | 16253 | GB | 0.08-0.15 | | 0.3-0.6 | 0.5-0.8 | <0.035 | <0.035 | 2.0-2.5 |
GS-18Cr-Mo9-10 | 17245 | JIS | 0.15-0.20 | | 0.3-0.6 | 0.5-0.8 | <0.02 | <0.015 | 2.0-2.5 |
Gr.WC5 | A217 | ASTM | 0.05-0.20 | | <0.6 | 0.4-0.7 | <0.04 | <0.045 | 0.5-0.9 |
SCPH61 | G5151 | JIS | <0.2 | | <0.75 | 0.5-0.8 | <0.04 | <0.04 | 4.0-6.5 |
Steel castings are commonly used in applications that require resistance to high temperatures and pressures. These castings are designed to withstand extreme conditions and provide durability and reliability in various industries, including petrochemical, power generation, and aerospace.
High-temperature and high-pressure service often involve aggressive environments, such as corrosive chemicals, intense heat, and high mechanical stresses. To meet these challenges, steel castings for such applications are typically produced using specialized alloys with exceptional mechanical properties and resistance to thermal and chemical degradation.
Some common steel alloys used for high-temperature and high-pressure service include:
1. Stainless Steel: Stainless steel castings offer excellent corrosion resistance and high-temperature strength. These alloys contain a high proportion of chromium, which forms a protective oxide layer on the surface, preventing corrosion in aggressive environments.
2. Nickel-based Alloys: Nickel-based alloys, such as Inconel and Hastelloy, are known for their exceptional resistance to high temperatures and corrosive environments. These alloys exhibit excellent strength, oxidation resistance, and stress corrosion cracking resistance.
3. Heat-Resistant Steels: Heat-resistant steels, like ASTM A217, A297, and A351, are specifically designed to withstand high temperatures and provide excellent creep resistance. These alloys are commonly used in applications with prolonged exposure to elevated temperatures, such as boiler components and turbine blades.
4. Low Alloy Steels: Low alloy steels, such as ASTM A352 and A217, are commonly used in high-temperature and high-pressure service due to their good strength and toughness. These steels offer a good balance between cost and performance.
When manufacturing steel castings for high-temperature and high-pressure service, it is essential to consider factors such as material selection, casting design, heat treatments, and quality control processes. The casting process should ensure proper grain structure, absence of defects, and uniform mechanical properties throughout the component.
Overall, steel castings for high-temperature and high-pressure service play a crucial role in various industries that require reliable and durable components to operate in demanding environments. Proper material selection and production processes are vital to ensure the performance and longevity of these castings.