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Shougang Metallurgical Building Materials Co., Ltd., Fengrun District, Tangshan City
Address: Baiguantun Economic Development Zone, Fengrun District, Tangshan City, Hebei Province
Website: www.sgsteelball.cn
Website: www.sgsteelball.com
Super High Chrome Cast Cylpebs（Cr:20%-28%）
1. Chemical Composition: Designation and Chemical Elements | Designation | C (%) | Si (%) | Mn (%) | Cr (%) | P (%) | S (%) | Mo (%) | Ni (%) | Cu (%) | |-------------------|-------|--------|----------|----------|---------|---------|----------|----------|----------| | SHCCC (Ultra‑High‑Chromium Cast Steel) | 1.80–3.20 | 0.3–1.20 | 0.3–2.20 | 20–22 | ≤0.06 | ≤0.06 | Trace | Trace | Trace | | ZQCR20 | 22–24 | 24–26 | 26–28 | 28–30 | | ZQCR22 | 22–24 | 24–26 | 26–28 | 28–30 | | ZQCR24 | 24–26 | 26–28 | 28–30 | | ZQCR26 | 26–28 | 28–30 | | ZQCR28 | 28–30 | | 2. Hardness, Impact Toughness, and Microstructure | Designation | Surface Hardness (HRC) | Impact Value (AkJ/cm²) | Microstructure | | Ultra‑High‑Chromium Forged Steel (SHCCC) | — | — | — |
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Super High Chrome Cast Cylpebs（Cr:20%-28%）
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Product Description
1. Chemical Composition
Name | Grade | Chemical composition | ||||||||
C | Yes | Mn | Cr | P | S | Mo | Ni | Cu | ||
Ultra-high chromium cast steel forging | ZQCR20 | 1.80~3.2 | 0.3~1.20 | 0.3~2.2 | 20~22 | ≤0.06 | ≤0.06 | Trace amounts | Trace amounts | Trace amounts |
ZQCR22 | 22~24 | |||||||||
ZQCR24 | 24~26 | |||||||||
ZQCR26 | 0.3-2.5 | 26~28 | Trace amounts | Trace amounts | Trace amounts | |||||
ZQCR28 | 28~30 | |||||||||
2. Hardness, impact toughness, and microstructure
Name | Grade | Surface hardness | Impact value | Microstructure |
Ultra-high chromium forging | ZQCR20-ZQCR24 | 58-64 | ≥3 | M+C |
ZQCR26-ZQCR28 | 56-62 | |||
M—Martensite, C—Carbide | ||||
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