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Drive Housing Grey Iron Foundry For Marine Iron Castings HT250 Material

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Drive Housing Grey Iron Foundry For Marine Iron Castings HT250 Material

Drive Housing Grey Iron Foundry For Marine Iron Castings HT250 Material
Drive Housing Grey Iron Foundry For Marine Iron Castings HT250 Material Drive Housing Grey Iron Foundry For Marine Iron Castings HT250 Material

Large Image :  Drive Housing Grey Iron Foundry For Marine Iron Castings HT250 Material

Product Details:

Place of Origin: China
Brand Name: non-standard
Certification: ISO9001;TS16949
Model Number: custom-built

Payment & Shipping Terms:

Minimum Order Quantity: 1 Ton
Price: quote according to different drawing technique requirements
Packaging Details: Plywood crate + VCI Anti-Rust Bag
Delivery Time: within 60 days
Payment Terms: T/T, L/C
Supply Ability: 300 Tons every month
Detailed Product Description
Material: HT200; GG20 Process: Green Sand Casting Process
Machining: CNC Machining Surface: Anti-Rust Oil
Used For: Autocar Industry Packing: Crate
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Drive Housing Grey Iron Foundry For Marine Iron Castings HT250 Material

 

Product Description and Process
 
1. Drive Housing For Marine Iron Castings HT250 Material Sand Castings Foundry China
 
2. Production process: green sand molding, pre-coated sand molding and resin sand molding which can produce iron castings from 50 gram to 2000 kilograms
 
3. Machining process: CNC machine, machining center, lathe, mill machine, drill machine, etc.
 
4. Surface treatment process: paint coating, electrophoretic coating, electrogalvanizing coating, black oxide coating, phosphate coating, powder coating, etc.
 
Product Material and Uses


1. Normally produce with gray iron HT200, HT250, Ductile Iron 65-45-12, 60-40-18, 80-55-06, 80-60-03, etc.
2. The ductile iron casting products are widely used for Auto-cars, trains, trucks, vehicle components, mining machinery components, agricultural machinery parts, textile machinery parts, construction machinery parts, valves and pump parts, etc.

 

What is Grey Cast Iron?

 

Grey cast iron (a.k.a. gray iron) is a type of iron found in castings known for its grey color and appearance caused by graphite fractures in the material. Specifically, what makes grey iron “grey iron,” is the graphite flake structure that is created during the cooling process from the carbon that is in the component.

Grey iron is a result of both the materials used and the process used to cast a part. In other words, the properties of the grey iron will change depending on what materials are melted together to pour into the mold as well as the process that is used for casting (it is primarily the cooling part of the process that defines the characteristics of the cast part versus other parts of the process.).

 

 

If you use a powerful microscope you can see the graphitic microstructure that makes grey iron so easily identifiable. In a grey iron casting, you can see little black flakes of graphite. These flakes cause fractures and cause the material to have a grey appearance. The mechanical properties of grey iron are controlled by the size and shape of the graphite flakes present in the microstructure and can be characterized according to the guidelines given by the ASTM.

There are more pounds of grey iron castings produced every year throughout the world than any other type of casting. Just about every manhole cover is from grey iron and the disc brakes on your car are most likely grey iron as well. Other common uses for grey iron include:

· Gears

· Hydraulic components

· Automotive suspension components

· Plow shares

· Pumps

· Linkages

· Stove parts

· Steering knuckles

· Tractor parts

· Valves

· Truck suspension components

· Other truck parts

· Wind turbine housings.

· Weights and counter-weights

· Machinery bases

 

 

 


 

Drive Housing Grey Iron Foundry For Marine Iron Castings HT250 Material 0

 

 

Drive Housing Grey Iron Foundry For Marine Iron Castings HT250 Material 1


Properties of ASTM A48 Classes of gray iron
 

Class Tensile
strength (ksi)
Compressive
strength (ksi)
Tensile modulus,
E (Mpsi)
20 22 83 10
30 31 109 14
40 57 140 18
60 62.5 187.5 21

 
 
Properties of SAE J431 grades of gray iron

 

Grade Brinell hardness t/h† Description
G1800 120–187 135 Ferritic-pearlitic
G2500 170–229 135 Pearlitic-ferritic
G3000 187–241 150 Pearlitic
G3500 207–255 165 Pearlitic
G4000 217–269 175 Pearlitic
†t/h = tensile strength/hardness

 
 

 

 

 

 

 
Grey Iron Castings Hardness

 

Gray Iron Grade Hardness Grade

Hardness Range
HB

Metallography
HT100 H145 ≤170 Ferrite
HT150 H175 150~200 Ferrite + Pearlite
HT200 H195 170~220 Pearlite
HT250 H215 190~240 Pearlite
HT300 H235 210~260 Pearlite(Inoculated Cast Iron)
HT350 H255 230~280 Pearlite(Inoculated Cast Iron)

 
 
What is the Composition of Gray Cast Iron?
 
Just like all cast iron parts, the primary component of Grey Iron is going to be the iron (no surprise there, right?). Just like most other cast irons, it also has 2.5–4.0% carbon and 1–3% silicon. If you look at Chart 2 you will notice that the composition of the iron is very close to other common cast parts, but with a little more phosphorus.

 

Iron Family Gray Ductile CGI Malleable White
Carbon 2.5-4.2 3.0-4.0 2.5-4.0 2.2-2.8 1.8-3.6
Silicon 1.0-3.0 1.8-3.0 1.5-3.0 1.2-1.9 0.5-2.0
Manganese 0.15-1.0 0.1-1.0 0.10-1.0 0.15-1.2 0.15-0.8
Sulfur 0.02-0.25 0.01-0.03 0.01-0.03 0.02-0.2 0.02-0.2
Phosphorus 0.02-1.0 0.01-0.1 0.01-0.1 0.02-0.2 0.02-0.2

 

Grey Cast Iron Property and Chemical Composition

Gray Iron Casting, no any standard mentioned the chemistry composition, so we only suggest the following chemistry based on actual production.
 

Grade

Wall Thickness
/mm

C Si Mn

P

S

HT100 3.4~3.9 2.1~2.6 0.5~0.8 0.3 0.15
HT150

<30
30~50
>50

3.3~3.5
3.2~3.5
3.2~3.5

2.0~2.4
1.9~2.3
1.8~2.2

0.5~0.8
0.5~0.8
0.6~0.9

0.2
0.2
0.2

0.12
0.12
0.12

HT200

<30
30~50
>50

3.2~3.5
3.1~3.4
3.0~3.3

1.6~2.0
1.5~1.8
1.4~1.6

1.7~0.9
0.8~1.0
0.8~1.0

0.15
0.15
0.15

0.12
0.12
0.12

HT250

<30
30~50
>50

3.0~3.3
2.9~3.2
2.8~3.1

1.4~1.7
1.3~1.6
1.2~1.5

0.8~1.0
0.9~1.1
1.0~1.2

0.15
0.15
0.15

0.12
0.12
0.12

HT300

<30
30~50
>50

2.9~3.2
2.9~3.2
2.8~3.1

1.4~1.7
1.2~1.5
1.1~1.4

0.8~1.0
0.9~1.1
1.0~1.2

0.15
0.15
0.15

0.10
0.10
0.10

 
 

Contact Details
Zhengzhou Yu-Long Machinery Equipment Co., Ltd.

Contact Person: Mr. James Wang

Tel: +86 13213152686

Send your inquiry directly to us (0 / 3000)