Crusher Blow Bars / Impact Plates

high manganese steel insert titanium alloy bars blow bar

High manganese steel blow bar

Blow Bars Mn18Cr2 Insert Alloy Bars & Hardfacing

Impact Plates

Ceramic Blow Bars

Impact Plates

High Chromium Iron Blow bars

Alloyed Steel Blow Bars

We can provide you with various brands of Crusher Blow Bars / Impact Plates , also can customize and produce according to your working conditions

Our company has a unique process design and advanced production technology especially for large-scale blow bar. It was the end of the last century.we produced large-sized and super-sized blow bar for Internationally-renowned brand manufacturers which got favorable comments of users.

If you don't find the product you need on the website, please email us（info@lyzhili.com）, because we are a customized factory for crusher spare parts.

we can provides comprehensive material selection for you

High manganese steel(Mn13Cr2/Mn18Cr2), high manganese steel insert titanium alloy bars, high manganese insert titanium alloy bars and hardfacing, ceramic metal composite,bimetal composite, high chromium cast iron, alloy steel, etc.

High chromium iron

Feature:

We use proper alloying and and related technological measures to make the crusher Blow Bars’ surface hardness reaches more than 58HRC , during the process of wearing will maintain high hardness and high wear resistance.

Technology process

The working part of hammer head we use the technique of directional solidification to make Cr7C3 type carbide is perpendicular to the part.The macro-hardness and micro hardness of carbide can be improved without reducing thoghness.

Application

Suitable for making wearable spare parts with lower impact load and simpler shape.

Chemical component

Grade	Chemical component%
Grade	C	Si	Mn	Cr	Mo	Ni	Cu	S	P
BTMCr15	2.0~3.3	≤1.2	≤2.0	14~18	≤3.0	≤2.5	≤1.2	≤0.06	≤0.10
BTMCr20	2.0~3.3	≤1.2	≤2.0	18~23	≤3.0	≤2.5	≤1.2	≤0.06	≤0.10
BTMCr26	2.0~3.3	≤1.2	≤2.0	23~30	≤3.0	≤2.5	≤2.0	≤0.06	≤0.10
1：Allowed to add microscale V,Ti,Nb,B and Re etc. 2：We will choose grade and specific component according to blow bars’ weight ,thickness and sizes

Mechanical Property

Grade	Surface Hardness
	Casting condition		Harded condition		Softening annealing condition
	HRC	HB	HRC	HB	HRC	HB
BTMCr15	≥46	≥450	≥58	≥650	≥41	400
BTMCr20	≥46	≥450	≥58	≥650	≥41	400
BTMCr26	≥46	≥450	≥58	≥650	≥41	400
1：There are no exact corresponing value between rockwell hardness(HRC) and brine hardness(HB),so ,this two kind of hardness value can be inspend used 。 2：The hardness in the 40%deepness of casting section should be lower than 92% hardness of surface.

High Manganese Steel

Feature

High manganese steel refers to high alloy steels containing more than 10% manganese. The biggest features of high-manganese steel are:

The greater external compressive stress or impact load, the more conducive to the formation of hardened layer, so the higher the wear resistance of the casting;

With the gradual wear of the hardened layer, new work hardened layers will continue to form under the influence of external compressive stress or impact loads. Therefore, it is suitable for making wearable spare parts that are subject to high impact load and wear for a long time, and is widely used in metallurgy, mining, building materials, railways, electric power, coal and other broken grinding equipment.

Chemical component

Grade	Chemical component%
Grade	C	Si	Mn	Cr	S	P
ZG120Mn13	1.05~1.35	0.3~0.9	11~14	-	≤0.06	≤0.04
ZG120Mn13Cr2	1.05~1.35	0.3~0.9	11~14	1.5~2.5	≤0.06	≤0.04
ZG120Mn17Cr2	1.05~1.35	0.3~0.9	16~19	1.5~2.5	≤0.06	≤0.04
1：Allowed to add microscale V,Ti,B and Re etc. 2：We can produce the other grade high manganese steel hammer according to customers’ requirments 。

Mechanical Property

Grade	Stretch property				Hardness HB
Grade	yield strength ReH/Mpa	tensile strength Rm/Mpa	Elongation at cross section %	Shock absorption energyKu2J	Hardness HB
ZG120Mn13	-	≥685	≥25	≥118	≤300
ZG120Mn13Cr2	≥390	≥735	≥20	-	≤300

Ceramic metal composite

Ceramic metal composite wear-resistant material is a kind of casting infiltration technology to evenly distribute cermet particles on the working face of wear-resistant spare parts. By optimizing the chemical composition of high chromium wear-resistant materials, cermets are embedded in the easily worn parts to make them have excellent properties of wear resistance and high temperature resistance.

In the honeycomb structure of high chromium cast iron, because the hardness of ceramic (particle) is hv2100 and the hardness of high chromium cast iron is HV < 900, the ceramic metal composite is widely used in various wear fields, and its service life is 3-4 times longer than that of single high chromium cast iron. Thus, the running time of wear-resistant spare parts is prolonged, the maintenance times and time are reduced, and the production efficiency is improved.