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Connector CNC Machining Part Graphite Cast Iron Products For Autocar Industry

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Connector CNC Machining Part Graphite Cast Iron Products For Autocar Industry

Connector CNC Machining Part Graphite Cast Iron Products For Autocar Industry
Connector CNC Machining Part Graphite Cast Iron Products For Autocar Industry

Large Image :  Connector CNC Machining Part Graphite Cast Iron Products For Autocar Industry

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 drawing technical 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: ASTM A536 Grade 65-45-12 Process: Green Sand Casting Process
Machining: CNC Machining Surface: Zinc Plated
Used For: Autocar Industry Packing: Plywood Crate
High Light:

nodular cast iron


spheroidal cast iron


Connector CNC Machining Part Ductile Iron Castings Products Manufacturer


Product Description and Process

1. Connector CNC Machining Part Ductile Iron Castings Products Manufacturer
2. Production process:


Green Sand Castings Process
Pre-coated Sand Castings process
Resin Sand Castings Process


3 Sand moulds making:


by handwork(suitable for small quantity order and complicate structure parts)

by molding machines

by shell molding machines
by automatic molding production line


4. Weight range: we can produce iron castings from 50 gram to 2000 kilograms
5. Machining process: CNC machine, machining center, lathe, mill machine, drill machine, etc.
6 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 are the Benefits of Ductile Iron?


Ductile iron castings are very strong compared to regular cast iron (gray iron). The tensile strength of cast iron is 20,000 – 60,000 psi while ductile iron starts at 60,000 psi and can go to 120,000 psi. The yield strength for ductile iron is generally 40,000 – 90,000 psi but the yield strength of cast iron is so low it is considered not measurable.

Let us put strength in a different way. We have seen gray iron parts break when they hit the ground after falling ten feet. With a ductile iron casting, you can hit the part all day long with an eight-pound sledge hammer and it is not likely to crack.

What causes the problem for gray iron is those graphite flakes which encourage fractures along the flakes, while the nodules in ductile iron work at keeping the iron together. Given the exact same scenario of the same part made from the two different metals, while the brittle gray iron wants to crack, the ductile iron wants to bend.

Ductile iron also has what is called excellent wear resistance because of the graphite in the iron. When you have something rubbing against ductile iron, the ductile iron wears away much slower than many other metals. The wear resistance is partly from the graphite structures that can act like a dry lubricant on the iron.

Ductile iron also dissipates (gets rid of) heat very well and can be machined fairly easily, though ductile iron is harder to work with than regular gray cast iron. Ductile cast iron dampens vibration and sound much better than steel would making ductile iron a good match for use on large machines.


Recent development of ductile cast iron production technology in China


With the constant growth of national economy, the castings output in China increases quickly. China has been ranked the top manufacturer of casting production in the world since 2000. The casting output had reached 24,420,000 tons in 2005, accounting for about 28.5% of the world's total output [1]. In addition, the output of ductile iron had also developed rapidly, which reached 5,838,000 tons in 2005, increasing to 2.46 times of output in 2000. The ratio of ductile iron castings to total castings increased from 18% in 2000 to 23.9% in 2005. Over the past five years, the production of centrifugal-cast iron pipe had achieved an average 40% growth in China, to 1.9 million tons in 2004.

Moreover, huge quantities of various centrifugal-cast iron pipes have been exported to Southeast Asian countries. However, the ratio of ductile iron castings to total castings in developed countries, such as France (40.8%), the United States (32.88%) and Japan (28.9%), is still beyond that of China in 2005. With the development of automotive and cast pipe industries, as well as the gradual improvement of ductile iron casting quality in China, the applications of ductile iron castings will be continuously expanded. In the "11th Five-Year Plan," the production of ductile iron in China will be greater than that of the world's average level, and will continue to be an important casting alloy for various engineering fields in the future. Therefore, further stabilizing ductile iron production process, improving ductile iron quality, exploiting and introducing new technologies for ductile iron production, are still an important task for Chinese casting manufacturing industry.

Ductile Iron Grade Chart
ASTM A536 1993 (USA)

Grade Tensile Strength
Yield Strength
60-40-18 F32800 414 276 18
65-45-12 F33100 448 310 12
80-55-06 F33800 552 379 6.0
100-70-03 F34800 689 483 3.0
120-90-02 F36200 827 621 2.0
Special Purpose      
60-42-10   415 290 10
70-50-05   485 345 5.0
80-60-03   555 415 3.0


EN 1563 1997 (European Standard)

Grade Tensile Strength
Yield Strength
Symbol Number
EN GJS 350-22 EN JS1010 350 220 22
EN GJS 350-22-LT* EN JS1015 350 220 22
EN GJS 400-18 EN JS1020 400 250 18
EN GJS 400-18-LT* EN JS1025 400 240 18
EN GJS 400-15 EN JS1030 400 250 15
EN GJS 450-10 EN JS1040 450 310 10
EN GJS 500-7 EN JS1050 500 320 7
EN GJS 600-3 EN JS1060 600 370 3
EN GJS 700-2 EN JS1070 700 420 2
EN GJS 800-2 EN JS1080 800 480 2
EN GJS 900-2 EN JS1090 900 600 2

Low temperature V notch impact tested (-20±2℃)

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

Contact Person: Mr. James Wang

Tel: +86 13213152686

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