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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
Hammerhead
1. Chemical Composition — Component Classification, Types, and Grades Chemical Composition (%) | Component | High-Chromium Cast Iron | ZTCr15 | ZTCr18 | ZTCr25 | |-----------|--------------------------|---------|---------|---------| | C | 2.5–3.5 | 2.5–3.5 | 2.5–3.5 | 2.5–3.5 | | Si | 0–1.2 | 0–1.2 | 0–1.2 | 0–1.2 | | Mn | 0.3–1.5 | 0.3–1.5 | 0.3–1.5 | 0.3–1.5 | | Cr | 15–17 | 18–20 | 24–26 | 15–17 | | Mo | 0.3–1.5 | 0.3–1.5 | 0.3–1.5 | 0.3–1.5 | | Ni | 0.3–1.5 | 0.3–1.5 | 0.3–1.5 | 0.3–1.5 | | Cu | 0.3–1.5 | 0.3–1.5 | 0.3–1.5 | 0.3–1.5 | | S | ≤0.1 | ≤0.1 | ≤0.1 | ≤0.1 | | P | ≤0.1 | ≤0.1 | ≤0.1 | ≤0.1 | | Other | — | — | — | — | Note: The “ZT” designation indicates a high-chromium cast iron grade, with the specific composition varying according to the desired properties of the component.
Keywords:
Hammerhead
Category:
Product Description
1. Chemical Composition
|
Component Classification |
Type |
Grade |
Chemical Composition (%) |
||||||||
|
C |
Yes |
Mn |
Cr |
Mo |
Ni |
Cu |
S |
P |
|||
|
Wear-resistant portion of the hammerhead casting |
High-chromium cast iron |
ZTCr15 |
2.5-3.5 |
0-1.2 |
0.3-1.5 |
15-17 |
0.3-1 |
0-0.5 |
1-2 |
≤0.1 |
≤0.1 |
|
ZTCr18 |
2.5-3.5 |
0-1.2 |
0.3-1.5 |
18-20 |
0.3-1 |
0-0.5 |
1-2 |
≤0.1 |
≤0.1 |
||
|
ZTCr25 |
2.5-3.5 |
0-1.2 |
0.3-1.5 |
24-26 |
0.3-1 |
0-0.5 |
1-2 |
≤0.1 |
≤0.1 |
||
|
Support section of the hammerhead casting |
Alloy steel |
ZG40Cr2 |
0.3-0.5 |
≤1.2 |
0.3-1 |
0.5-2.5 |
0-0.5 |
0-0.3 |
0-1 |
≤0.45 |
≤0.45 |
|
High-manganese steel |
ZGMn13 |
1-1.4 |
≤1.0 |
11-14 |
0-2 |
0-0.5 |
0-0.3 |
0-1 |
≤1 |
≤1 |
|
2. Hardness, impact toughness, and microstructure
|
Name |
Grade |
Impact toughness (AkJ/cm²) 2) |
Hardness (Rockwell Hardness) |
Hardness (Brinell hardness) |
Microstructure |
|
High-chromium cast iron |
ZTCr15 |
3-5.5 |
58-62 |
620-684 |
M+A+C |
|
ZTCr18 |
3-5.5 |
58-62 |
620-684 |
M+A+C |
|
|
ZTCr25 |
2.5-5 |
58-62 |
620-684 |
M+A+C |
|
|
Alloy steel |
ZG40Cr2 |
15-30 |
20-30 |
229-285 |
M+A+C |
|
High-manganese steel |
ZGMn13 |
50-140 |
|
170-220 |
A+C |
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