High Chromium Blow Bars For Impact Crushers

[Common aliases]: high chromium blow bars, high chromium blow bars, high chromium blow bars, crusher blow bars, wear-resistant blow bars, alloy blow bars, composite blow bars, counterattack blow bars, counterattack blow bars
[Applicable equipment]: Impact crusher, impact crusher, hammer crusher, compound crusher, fine crusher
[Main material]: High chromium cast iron, high chromium alloy, high manganese steel, wear-resistant alloy steel
[Applicable materials]: Used in building materials, ore crushing, railway, highway, energy, transportation, energy, cement, mining, chemical industry and other industries for medium and fine crushing

High chromium blow bars mainly include a wear-resistant and impact-resistant material. Its main chemical composition includes Fe, C, Mn, Mo, Cr, Ni, V, etc. The content of Cr is 26, and the degree of wear resistance is high manganese steel. More than three times as much. The company uses low-alloy steel as the material and heat-treated it. Its room temperature structure is tempered martensite, which is low-carbon tempered.

High chromium blow bars form a kind of martensite during the heat treatment process. The martensite structure has good toughness. At the same time, because it contains chromium, molybdenum, vanadium, nitrogen, tungsten and other rare earth alloy elements, it integrates wear resistance. , Toughness, heat and corrosion resistance in one, the degree of wear resistance is extraordinary. The factory designed a special casting process for this purpose to avoid the defects such as pores and sand holes that are easy to appear in the casting of high chromium blow bars, so that the casting thickness is uniform, the metallographic structure is dense, and the wear resistance is greatly improved.

Structure and characteristics of high chromium blow bars:
In high chromium blow bars, adding elements such as molybdenum and nickel can also improve the hardenability, and also improve the plasticity and corrosion resistance. However, the cost is relatively high. It is necessary to choose whether to add it according to the actual situation of the customer. Molybdenum, nickel, and their content.
The manufacturer of EB high chromium blow bars customizes high chromium blow bars for customers, the blow bars with extended lifespan, and also saves more costs for users.

High Chromium Blow Bars

High Chromium Blow Bars Material Grades:

Standard Specification for Cr-Mo Alloy Steel
Reference Standard Nominal Chemical Composition (W%)
C Si Mn Cr Mo Ni P S
AS 2017/L2A 0.45-0.55 ≤0.75 0.50-1.00 0.80-1.20 ≤0.04 ≤0.04
AS 2017/L2B 0.55-0.65 ≤0.75 0.50-1.00 0.80-1.50 0.2-0.4 ≤0.04 ≤0.04
AS 2017/L2C 0.70-0.90 ≤0.75 0.50-1.20 1.30-2.40 0.2-0.4 ≤0.04 ≤0.04
ZG42Cr2Si2MnMo 0.38-0.48 1.5-1.8 0.8-1.2 1.8-2.2 0.2-0.6 ≤0.04 ≤0.04
ZG45Cr2Mo 0.40-0.48 0.8-1.2 0.4-1.0 1.7-2.0 0.8-1.2 ≤0.5 ≤0.04 ≤0.04
ZG30Cr5Mo 0.25-0.35 0.4-1.0 0.5-1.2 4.0-6.0 0.2-0.8 ≤0.5 ≤0.04 ≤0.04
ZG40Cr5Mo(FED-4A) 0.35-0.45 0.4-1.0 0.5-1.2 4.0-6.0 0.2-0.8 ≤0.5 ≤0.04 ≤0.04
ZG50Cr5Mo 0.45-0.55 0.4-1.0 0.5-1.2 4.0-6.0 0.2-0.8 ≤0.5 ≤0.04 ≤0.04
ZG60Cr5Mo 0.55-0.65 0.4-1.0 0.5-1.2 4.0-6.0 0.2-0.8 ≤0.5 ≤0.04 ≤0.04
FMU-29 0.25-0.45 0.3-1.0 0.6-1.5 6.0-8.0 0.2-0.4 ≤0.04 ≤0.04
FMU-11 0.90-1.30 0.3-1.0 0.6-1.5 11.0-13.0 0.3-0.5 ≤0.04 ≤0.04
FMU-13 0.80-1.30 0.4-1.2 0.8-1.5 11.0-13.0 0.4-0.8 ≤0.04 ≤0.04
FMU-14 1.60-2.00 0.4-1.2 0.8-1.5 11.0-13.0 0.6-1.0 ≤0.04 ≤0.04

High Chromium Blow Bars Technical Parameters :

model specification Inlet size Maximum feeding side length Production capacity power total weight Dimensions
mm mm mm t/h kw t (Length×Width×Height)mm
PF-1007 Φ1000×700 400×730 300 30-70 45 12 2330×1660×2300
PF-1010 Φ1000×1050 400×1080 350 50-90 55 15 2370×1700×2390
PF-1210 Φ1250×1050 400×1080 350 70-130 110 17.7 2680×2160×2800
PF-1214 Φ1250×1400 400×1430 350 100-180 132 22.4 2650×2460×2800
PF-1315 Φ1320×1500 860×1520 500 130-250 220 27 3180×2720×2620
PF-1520 Φ1500×2000 830×2040 700 300-550 440 50.6 3959×3564×3330

Our foundry has complete melting, heat treatment and testing equipment, such as medium frequency induction furnace, quenching and tempering furnace, shot peening, spectrometer, Rockwell and Brinell hardness tester, impactor, UT tester and metallographic microscope. We have obtained ISO quality management system certificate.
We have been exporting castings to overseas markets, such as Brazil, the United States, Nigeria, Australia and South Africa, etc.

Only part of the impact crusher models are listed here. Due to the continuous improvement of product performance, product parameters are subject to change without notice. If you need to know more, please come to me.
EB has been focusing on wear-resistant castings for 21 years and has undertaken various types of crusher parts processing business throughout the year. There are three series: high manganese steel series, multi-alloy steel series, high and low chromium series; as long as you have samples or drawings, we can customize !


Eternal Bliss Alloy Casting & Forging Co, Ltd.


E-mail: sales@ebcastworld.com

Our What’s app: 0086-130 930 23772



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