Ductile Cast Iron Plate
Ductile cast iron plate is produced from a nodular graphite structure that resists crack propagation and maintains ductility under impact and cyclic loading. This makes it suitable for heavy-duty structural, wear-resistant and pressure-containing applications where brittle failure must be avoided. Jialu holds multiple international grades across GB, JIS, KS, AWS and UNS standards on one stock list, so a project requi
- Nodular graphite structure resists crack initiation and propagation, reducing brittle failure risk
- High tensile strength and elongation allow use in dynamic and impact-loaded applications
- Multiple international standards (GB, JIS, KS, AWS, UNS) available on one stock list and contract
- Custom thickness and size possible, reducing need for secondary machining
Mill certificates issued against the ordered grade and standard. Third-party inspection available on request.
What This Material Is For
Ductile cast iron plate is produced from a nodular graphite structure that resists crack propagation and maintains ductility under impact and cyclic loading. This makes it suitable for heavy-duty structural, wear-resistant and pressure-containing applications where brittle failure must be avoided. Jialu holds multiple international grades across GB, JIS, KS, AWS and UNS standards on one stock list, so a project requiring QT600-3 for a pump housing, FCD600-3 for a valve body and GCD500 for a mill roll does not need to be split across three foundries and three inspection dates. Custom thickness and size are available to match the design intent.
Why Buyers Choose It
- Nodular graphite structure resists crack initiation and propagation, reducing brittle failure risk
- High tensile strength and elongation allow use in dynamic and impact-loaded applications
- Multiple international standards (GB, JIS, KS, AWS, UNS) available on one stock list and contract
- Custom thickness and size possible, reducing need for secondary machining
- Single inspection and shipment for mixed-grade projects across different standards
Where It Is Used
- Pump and valve bodies in QT600-3 and FCD600-3 for water and oil handling systems
- Mill rolls and wear plates in GCD500 and FCD700-2 for heavy industrial processing
- Structural supports and frames in QT700-2 and FCD800-2 for mining and construction equipment
- Foundry components in AWS 80-55-06 and UNS F34800 where corrosion and wear are concerns
- Heavy machinery housings in QT800-2 and FCD800-2 for high-stress environments
- Pressure-containing parts in QT900-2 and FCD800-2 where strength and toughness are critical
Who It Is For
- Heavy equipment manufacturers sourcing cast iron components with mixed international standards
- Foundries and fabricators needing ductile iron plates for structural or wear parts
- Pump and valve producers requiring high-strength, impact-resistant castings
- Mining and construction equipment builders needing durable, fatigue-resistant components
- Industrial plant owners specifying ductile iron for critical wear or structural elements
Problems It Solves
- Splitting one project across multiple foundries due to limited grade or standard coverage
- Delays caused by waiting for a single mill to produce a specific grade within a tight delivery window
- Inconsistent material performance when sourcing from mills with varying metallurgical control
- Multiple inspection visits and shipment dates when grades are sourced from different suppliers
- Difficulty in matching foreign standards (e.g., AWS, UNS) with domestic foundry availability
Technical Features
- Nodular graphite structure achieved through magnesium or cerium inoculation during casting
- Tensile strength from 400 MPa (QT400-18) up to 900 MPa (QT900-2), with elongation from 18% down to 2%
- Available in GB, JIS, KS, AWS and UNS designations, covering structural, wear and pressure applications
- Custom thickness and size available, with tolerance control to meet engineering drawings
- Heat treatment options available to enhance hardness or ductility based on service requirements
Grades Standards And Size Range
Values below come from the published product data. Anything not listed is confirmed per enquiry.
| GB Grades | QT400-18, QT400-15, QT450-10, QT500-7, QT600-3, QT700-2, QT800-2, QT900-2 |
|---|---|
| JIS Grades | FCD350-22, FCD400-18, FCD400-15, FCD450-10, FCD500-7, FCD600-3, FCD700-2, FCD800-2 |
| KS Grades | GCD370, GCD400, GCD450, GCD500, GCD600, GCD700, GCD800 |
| AWS Grades | 60-40-18, 65-45-12, 80-55-06, 100-70-03, 120-90-02 |
| UNS Grades | F32800, F33100, F33800, F34800, F36200 |
| Thickness Range | Customized |
| Size | Customized |
| Standard Coverage | GB, JIS, KS, AWS, UNS |
Materials
- Ductile cast iron with nodular graphite for high strength and toughness
- GB series grades for general industrial and structural use in China and Asia
- JIS grades for equipment used in Japan and other Pacific Rim markets
- KS grades for South Korean and regional industrial applications
- AWS and UNS grades for North American and international engineering projects
Manufacturing Route
Quality Control
- Chemical composition verified against the ordered grade and standard
- Mechanical properties tested for tensile strength, yield strength and elongation
- In-house CNAS-certified laboratory conducts routine testing and holds traceability
- Third-party inspection available on request, bookable at order stage
- Mill certificates issued per purchase order, including grade, standard and test results
Customisation Options
- Custom thickness and size available to match engineering drawings
- Grade and standard selected per item, so one order can mix GB, JIS, AWS and UNS callouts
- OEM service accepted for branded or proprietary specifications
- Packing and marking arranged per destination port and inspection regime
How It Compares With The Alternatives
| Gray cast iron plate | Ductile iron has higher tensile strength and elongation; gray iron is brittle and unsuitable for impact or dynamic loading |
|---|---|
| Wrought steel plate | Ductile iron offers better vibration damping and wear resistance; steel is stronger in tension but more prone to fatigue cracking |
| Malleable cast iron plate | Ductile iron has higher strength and better consistency; malleable iron requires additional heat treatment and has lower toughness |
Buying Guide
- Start from the required standard (GB, JIS, AWS, etc.) and select the grade based on strength and ductility needs
- For wear or impact applications, choose higher tensile grades like QT800-2 or FCD800-2
- For structural or pressure parts, confirm whether elongation and toughness are critical
- Provide the thickness and size requirements in the enquiry, as availability varies by dimension
- Specify the standard and grade clearly in the purchase order to avoid substitution
Questions About Ductile Cast Iron Plate
Which international standards do you supply for ductile cast iron plate?
GB, JIS, KS, AWS and UNS standards are available, including QT400-18, FCD600-3, GCD500, 80-55-06 and F34800.
Can one order include multiple grades and standards?
Yes. Mixed-grade and mixed-standard orders are standard practice here, which is why buyers consolidate with us instead of splitting across foundries.
Do you offer custom thickness and size?
Yes. Custom thickness and size are available to match engineering drawings.
What certification supports the material?
The company holds ISO 9001, API Q1, PED, CE, and API 5L, 5CT, 5DP, with an in-house CNAS-certified laboratory. Mill certificates are issued per order.
Can we appoint our own inspector?
Yes. Third-party inspection is available on request and is best booked at order stage to align with production schedule.
What payment terms and currencies do you accept?
L/C, T/T, PayPal and credit card, in USD, CAD, AUD, SGD, EUR or RMB.
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