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CNC Machining Gray Cast Iron Castings Pump Valve Fittings Flange Parts

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CNC Machining Gray Cast Iron Castings Pump Valve Fittings Flange Parts

China CNC Machining Gray Cast Iron Castings Pump Valve Fittings Flange Parts supplier
CNC Machining Gray Cast Iron Castings Pump Valve Fittings Flange Parts supplier CNC Machining Gray Cast Iron Castings Pump Valve Fittings Flange Parts supplier

Large Image :  CNC Machining Gray Cast Iron Castings Pump Valve Fittings Flange Parts

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
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Detailed Product Description
Material: HT250 Process: Green Sand Casting Process
Machining: CNC Machining Surface: Anti-Rust Oil
Used For: Pump Industry Pakcing: Crate

CNC Machining Gray Cast Iron Castings Pump Valve Fittings Flange Parts

 

Product Description and Process
 
1.Pump & Valve Fittings Flange Parts Gray Cast Iron Castings Green Sand Castings
 
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.

 

Grey Iron Specifications, Characteristics & Applications

 

• ASTM A48: gray iron castings

• ASTM A74: cast iron soil & pipe fittings

• ASTM A126: gray iron castings for valves, flanges & pipe fittings

• ASTM A159: automotive gray iron castings

• SAE J431: automotive gray iron castings

• ASTM A278 & ASME SA278: gray iron castings for pressure-containing parts

For temperatures up to 650F (343C)

• ASTM A319: gray iron castings for elevated temperatures for

Non-pressure-containing parts

• ASTM A823: statically cast permanent mold castings

• ASTM A834: common requirements for iron castings for general industrial use

 

CNC Machining Gray Cast Iron Castings Pump Valve Fittings Flange Parts

 

 

 

 

CNC Machining Gray Cast Iron Castings Pump Valve Fittings Flange Parts

 

 

 


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.

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: James Wang

Tel: +8613213152686

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