Bearing materials Alloy steel shot grit for shot peening blasting

Min.Order: 10

Product origin: Dalian, Liaoning, China

Infringement complaint:

Complaint

US$ 500

Description

CHROME ALLOY STEEL SHOT/GRIT
Performance & Technical standard:
1. Chemical Composition:
Carbon: 0.8 - 1.2%
Manganese :0.1-0.8%
Silicon: 0.1-0.6%
Chrome: 0.8-1.7%
Sulphur : ≤0.03%
Phosphorus: ≤0.03%
2 Hardness:
The rate is more than 90% as follows:
Shot: 449~620HV(45~54HRC)
620~889HV(54~63HRC)
Grit:449~620HV(45~54HRC)
620~889HV(54~63HRC)
3 Metallurgical Structure: The high hardness alloy cementite inlaid in martensite
4 Min Density:
Shot ≥7.3×10 3kg/m3 Grit≥7.4×10 3kg/m3
5 Ervin time:
In the same hardness condition:
In stead of twice high carbon steel shot (Grit) ,Treble cast iron shot (Grit)
The use and application:
1 Surface Peening: high hardness casting ,die casting, forging , heat treatment
2 Shot Blasting and Peening: high hardness casting ,die casting, forging , heat
treatment, steels ,steel plate , Structural steel
3 Coating Processing: submarines and other military equipment and aerospace,
aviation equipment
4 Stone cutting .
Size: ISO standard (SAEJ-444 Standard)
1 Shot :S400(S1320),S300(S1110),S280(S930),S240(S780),S200(S660),
S170(S550) , S140(S460) , S120(S390) , S100(S330) , S080(S280) ,
S070(S230),S060(S170),S040(S110),S030(S70)
2 Grit :G240(G10),G200(G12),G170(G14),G140(G16),G120(G18),
G100(G25),G070(G40),G050(G50),G030(G80),G020(G120),G010(G200),
G005(G325)
The new metal abrasive with high hardness.

Atomization centrifugation

PRODUCTION EUIPMENT:
TEST EQUIPMENT:

SHOT PEENING ,SHOT BLASTING :

Alloy steel shot

Steel shot have two kinds ,the first is once quenching steel shot,the second is two times quenching. The first kinds process
is that high temperature molten metal ,atomized into the water, forming, drying , tempering; the second process is that after
first kinds steel shot and then by a second heat treatment (quenching and tempering), the purpose is for grain refinement,
elimination of network carbide.

Defect -1 Crack	Crack is one of the most fatal flaw of steel shot. YB / T5149-93 made by Ministry of Metallurgical for Steel shot standard states: "In the 10 times the magnifying glass inspection, the cracks rate of steel shot may not exceed 15% of the total number (Note: crack aspect ratio greater than 3 lines, longer than the diameter Shot 1/4 small linear defects) "The steel shot with cracks is difficult to ensure that no fragmentation at high speed, high load impact conditions work ,in the steel balls at high speed, high load impact conditions, it is impossible to obtain a high cleaning efficiency.
Defects -2 Shrinkage	Casting shrinkage and shrinkage are a common casting defects. Tissue shrinkage are caused by heterogeneity between Shot surface and internal contraction. Shrinkage have the great harm, except in the use of easily broken, also become a source of quenching cracks, causing quenching cracks.
Defect -3 Nonmetallic inclusions	Source inclusions are mainly endogenous and foreign categories. The inclusions are generally easy to separate tissues, which will reduce the fatigue life of steel shot.
Defects -4 deformity shot	Siamese, pointed, hollow and broken belong deformity shot.. Standard specified in the SEA shaped particles the ratio of 5%; in YB / T5149-93 standard provides: "Shot shape should be circular or approximately circular finished strip (ratio of the length of the shaft is greater than 2). The deformity rate (Siamese, sharp corners, trailing and fragmentation, etc.) should be less than 10%.
Defects -5 tissue defect	Tissue defect are included martensite needles coarse mesh and serious secondary carbides.The tissue defect will affect the fatigue life. Tissue defect in first kind shot is difficult to avoid, but after the second heat treatment to refine the organization still be missing .but if still exists after second heat treatment , the reason indicating improper heat treatment process or furnace uneven.

Alloy shot improvements - COMPOSITIONS WITH CAST STEEL SHOTS

Measures -1 chemical composition	According to YB / T5149-93 requirements, the chemical composition of steel shot and the content should comply with Where C, Si, Mn are improving hardenability elements, while the high rate of C, Si, Mn will undoubtedly not onlyincrease the risk of quenching crack, but also increases the shrinkage defects hazards. Our Shot To reduce these defects, using high-quality bearing steel GCr15 for raw materials, where C content of 0.7-1.0, Si content of 0.40-0.65, Mn content of 0.90-1.2, which fundamentally reduces fragmentation and shrinkage of harm .
Measures -2 grain refinement	In general, the use of micro-alloying measures can significantly refine the cast grain, suppress quenching cracks; strengthen deoxy desulfurization, can also reduce the hazards of non-metallic inclusions. our Shot in the sulfur content of the raw material GCr15 <= 0.020, phosphorus content <= 0.027, and all perform secondary tempering, stable microstructure, grain refinement.
Measures -3 Heat Treatment	Our Shot strictly controlled heat treatment temperature to prevent coarse martensite caused by overheating. Tempering temperature is controlled at 380-420 ºC to obtain tempered martensite. We cooperate with Technical University jointly developed new production equipment to ensure temperature uniformity, instruments accurately, greatly reducing the steel balls defects.
Measures -4 chromium metal	Chromium metal elements belonging to the ultra-high wear resistance. But because of its expensive, since manufacturers can not afford the cost of containing chromium metal. Our Shot raw material are bearing steel GCr15, chromium-containing 1.30-1.65, while the chromium content of more than 1.1 So our products, from the degree of wear and the results are far better than other similar products. After the fatigue life detection experiments showed that steel shot jade whole life up to 2700-3000 times, far more than the life of ordinary steel shot more than 1,000 times.

After a number of companies agreed to reflect, our Shot are unbreakable, long fatigue life, surface cleaning effect,
reasonable price.
TEST EQUIPMENT:

Packing & Delivery:
1). Cleaning: shot blasting, casting cleaning, blast cleaning castings, forgings, shot blasting, shot blasting forging, casting
sand, steel cleaning, cleaning up of steel, steel cleaning.
2). Rust: shot blasting, abrasive blasting, casting rust, rust forgings, forgings descaling steel rust, steel rust.
3). Strengthening: shot peening, heat treatment pieces of shot peening, shot peening gear.
4). Shot: steel shot, steel sandblasting, ship blasting, steel shot, steel shot.
5). Shot: steel blasting, steel shot blasting, steel shot blasting.
6). Playing sand: playing sand.
7). Shot pretreatment: coating pretreatment, surface preparation, pretreatment Ship, steel pretreatment, pretreatment of
steel, steel pretreatment, before the steel handle.

FAQ

who are we?
We are based in Dalian, China, start from 2008,sell to Southeast Asia(20.00%),Mid East(19.00%),Eastern
Europe(15.00%),Domestic Market(10.00%),North America(10.00%),Western Europe(8.50%),Eastern
Asia(8.50%),South Asia(3.50%),South America(2.00%),Oceania(1.30%),Africa(0.90%),Central
America(0.50%),Southern Europe(0.50%),Northern Europe(0.30%).

2.How can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;

3.what can you buy from us?
Metal Abrasive,Shot Blasting Machine,Sand Blasting Room,Dust Collectors,Air Blower Fans

4. why should you buy from us not from other suppliers?
`One Stop For All Your Surface Preparation Solutions! `Leading Manufacturer in China With More Than 10000
Regular Clients From Over 100 Countries Globally! `Stable Supply of Products With Stable Quality and Quantity!
`Chinese Standard Formulator!

5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,
Accepted Payment Currency:USD,EUR,JPY,CNY;
Accepted Payment Type: T/T,L/C,D/P D/A;
Language Spoken:English,Chinese