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Heat resistant grate bars for wast incinerator or other incinerators
Grate and grate bars are easily damaged parts which been widely used for wast incinerator, biomass and coal-fired boiler, sintering machine and other machines. It is produced by heat resistant steel with different type of structures. We are able to produce and offer a large range of grate bars by different materials or grate types. With the support of our production team, we can cooperate with our customers to improve their materials and designs in order to increase the life span of their products.
We strictly comply with the high standards of production, pay attention to the return charge percentage, process control and product inspection to ensure our customers get right quality products.
Flat grate;
Travelling grate;
Roller grate;
Moving/return grate bar;
Grate bar;
Shell molding is the most common process for our products for grate or grate bars. By this process, we can get high quality castings with good dimensional accuracy and high internal quality, but the cost is not as high as lost wax castings. For higher requirement castings, we use lost wax process as priority, and by this process we can get best surface and dimensional quality.
For simple castings such as grate bars, we use both lost foam process or shell molding process. By lost foam casting process, we can get much higher production efficiency to reduce production cost.
Material | Standard | C% | Si% | Mn% | P% Max | S% Max | Cr% | Mo% | Ni% | N% | Max working temperature/℃ |
ZG40Cr25Ni20Si2 | GB/T 8492-2002 | 0.3-0.5 | 1.0-2.5 | 2 | 0.04 | 0.03 | 24-27 | 0.5 | 19-22 | 1100 | |
ZG40Cr25Ni20 | GB/T 6403-1992 | 0.35-0.45 | 1.75max | 1.50max | 0.04 | 0.04 | 23-27 | 0.5max | 19-22 | 1150 | |
ZG40Cr9Si2 | GB/T 6403-1992 | 0.35-0.50 | 2-3 | 0.7max | 0.035 | 0.03 | 8-10 | 800 | |||
ZG35Cr24Ni7SiN | GB/T 6403-1992 | 0.3-0.4 | 1.3-2.0 | 0.8-1.5 | 0.04 | 0.03 | 23-25.5 | 7-8.5 | 0.2-0.28 | 1100 | |
ZG35Cr26Ni12 | GB/T 6403-1992 | 0.2-0.5 | 2.0max | 2.0max | 0.04 | 0.04 | 24-28 | 11-14 | 1100 | ||
ZGCr29Si2 | GB/T 8492-2002 | 1.2-1.4 | 1.0-2.5 | 0.5-1.0 | 0.04 | 0.03 | 27-30 | 0.5 | 1 | 1100 | |
1.4777(GX130CrSi29) | DIN 17465-1993 | 1.2-1.4 | 1.0-2.5 | 0.5-1.0 | 0.035 | 0.03 | 27-30 | 1100 | |||
1.4729(GX40CrSi13) | DIN 17465-1993 | 0.3-0.45 | 1.0-2.5 | 0.5-1.0 | 0.035 | 0.03 | 12-14 | 850 | |||
1.4776(GX40CrSi28) | DIN 17465-1993 | 0.3-0.45 | 1.0-2.5 | 0.5-1.0 | 0.035 | 0.03 | 27-30 | 1150 | |||
1.4823(GX40CrNiSi27-4) | DIN 17465-1993 | 0.35-0.50 | 1.0-2.5 | 1.50max | 0.035 | 0.03 | 25-28 | 3.5-5.5 | 1100 |