Meehanite,DuctlIron Rod/Bar® SH-100 Nodular Graphite Ductile Iron Rod/Bar

Meehanite DuctlIron Rod® SH-100 Nodular Graphite Ductile Iron Rod Product Information -:- For detailed product information, please contact sales. -: Meehanite DuctlIron Rod® SH-100 Nodular Graphite Ductile Iron Rod Synonyms -:- For detailed product information, please contact sales. -:

Meehanite Ductliron® SH-100 Nodular Graphite Ductile Iron Product Information -:- For detailed product information, please contact sales. -: # **Meehanite® Ductliron® SH-100 Nodular Graphite Ductile Iron** ## **Product Overview** **Meehanite Ductliron® SH-100** represents the **pinnacle of high-performance ductile iron technology** within the Meehanite quality system, engineered to deliver **exceptional mechanical properties approaching low-alloy steel capabilities** while maintaining the superior castability, machinability, and damping characteristics of ductile iron. The "SH" designation signifies **Super High-strength**, while "100" indicates the minimum **tensile strength of 100 ksi (690 MPa)** – positioning this material at the upper limits of standard ductile iron classification. This premium-grade material combines advanced alloying with the rigorous process controls of the Meehanite system to achieve a highly refined microstructure of tempered martensite or lower bainite with perfectly spheroidized graphite nodules. SH-100 is specifically designed for applications where conventional ductile irons lack sufficient strength and where steel alternatives would compromise manufacturability or damping performance. --- ## **1. International Standards & Specifications** | **Standard System** | **Designation** | **Equivalent/Reference** | **Key Characteristics** | |---------------------|-----------------|--------------------------|------------------------| | **Meehanite System** | **Ductliron® SH-100** | Proprietary classification | Premium ultra-high-strength ductile iron | | **ASTM International** | **A536 Grade 100-70-03** (Enhanced) | Primary US equivalent | Tensile: 100 ksi min (690 MPa) | | **ISO Standard** | **ISO 1083 EN-GJS-800-2** (Enhanced) | International specification | Enhanced properties over standard | | **DIN Standard** | **GGG-80/GGG-100** | German standard | Ultra-high-strength nodular iron | | **SAE Automotive** | **Special Application Grade** | Beyond standard automotive grades | For highly stressed components | | **Common Names** | Ultra-High Strength DI, Heat-Treated Ductile Iron, Engineering Premium Grade | Industry terminology | Ductliron® is a registered Meehanite trademark | **Critical Note:** SH-100 is supplied in heat-treated condition and requires specialized processing to achieve its specified properties. It represents a specialized engineering material rather than a general-purpose ductile iron. --- ## **2. Chemical Composition** The chemistry of SH-100 is precisely engineered with multiple alloying elements to achieve maximum strength through heat treatment while maintaining adequate toughness and castability. | **Element** | **Typical Range (% wt.)** | **Metallurgical Function** | **Property Contribution** | |-------------|---------------------------|---------------------------|--------------------------| | **Carbon (C)** | 3.3 - 3.6 | Graphite former | Controlled for optimal matrix strength | | **Silicon (Si)** | 1.8 - 2.2 | Matrix strengthener | Enhances hardenability, lowers Ms temperature | | **Manganese (Mn)** | 0.4 - 0.7 | Austenite stabilizer | Increases hardenability, controls transformation | | **Phosphorus (P)** | ≤ 0.030 (max) | Impurity control | Minimized for maximum toughness | | **Sulfur (S)** | ≤ 0.012 (max) | Impurity control | Critical for nodularization quality | | **Magnesium (Mg)** | 0.04 - 0.06 | **Nodularizing agent** | Essential for Type I graphite | | **Copper (Cu)** | **0.80 - 1.20** | **Hardenability enhancer** | Primary alloying element for martensite formation | | **Molybdenum (Mo)** | **0.30 - 0.60** | **Hardenability agent** | Prevents pearlite formation during quenching | | **Nickel (Ni)** | **0.80 - 1.50** | **Austenite stabilizer** | Enhances hardenability and toughness | | **Chromium (Cr)** | **0.15 - 0.30** | **Carbide former** | Increases wear resistance and hardenability | | **Vanadium (V)** | 0.05 - 0.15 (Optional) | **Grain refiner** | Forms fine carbides, increases strength | | **Boron (B)** | 0.001 - 0.003 (Trace) | **Hardenability intensifier** | Dramatically increases hardenability at low levels | **Microstructural Characteristics (Meehanite Controlled):** - **Graphite Structure:** **ASTM Type I**, Size 7-8 (very small, perfectly spherical) - **Nodule Count:** 200-400 nodules/mm² (extremely high for maximum properties) - **Matrix Structure:** **Tempered martensite or lower bainite** (95-100%) - **Retained Austenite:** < 5% (controlled through tempering) - **Carbide Content:** 3-8% (fine alloy carbides evenly distributed) - **Prior Austenite Grain Size:** ASTM 7-8 (very fine) - **Unique Feature:** Dual-phase matrix with optimal carbide distribution for maximum strength-toughness combination --- ## **3. Mechanical Properties** ### **Minimum Guaranteed Properties (Heat-Treated Condition):** - **Tensile Strength:** 100,000 psi minimum (690 MPa) - **Yield Strength:** 70,000 psi minimum (483 MPa) - **Elongation:** 3% minimum in 2 inches (50 mm) - **Hardness:** 285 - 341 HB (28 - 37 HRC) ### **Detailed Property Profile:** | **Property** | **Minimum** | **Typical** | **Maximum** | **Test Standard** | |--------------|-------------|-------------|-------------|------------------| | **Tensile Strength** | 100,000 psi (690 MPa) | 110,000 psi (758 MPa) | 120,000 psi (827 MPa) | ASTM A536 | | **Yield Strength (0.2% offset)** | 70,000 psi (483 MPa) | 80,000 psi (552 MPa) | 90,000 psi (621 MPa) | ASTM A536 | | **Elongation** | 3% | 4-6% | 8% | ASTM A536 | | **Reduction of Area** | 5% | 8-12% | 15% | - | | **Hardness (Brinell)** | 285 HB | 311 HB | 341 HB | ASTM E10 | | **Elastic Modulus** | 25 × 10⁶ psi (172 GPa) | 26 × 10⁶ psi (179 GPa) | 27 × 10⁶ psi (186 GPa) | - | | **Fatigue Strength** | 40,000 psi (276 MPa) | 45,000 psi (310 MPa) | 50,000 psi (345 MPa) | Rotating bending, 10⁷ cycles | | **Impact Energy (Charpy V-notch)** | 5 ft-lb (6.8 J) | 8-12 ft-lb (11-16 J) | 15 ft-lb (20 J) | ASTM E23 | | **Fracture Toughness (K₁C)** | 30 ksi√in (33 MPa√m) | 35-45 ksi√in (38-49 MPa√m) | 50 ksi√in (55 MPa√m) | ASTM E399 | ### **Heat Treatment Response:** | **Heat Treatment Condition** | **Tensile Strength** | **Hardness** | **Impact Toughness** | **Typical Application** | |-----------------------------|---------------------|--------------|----------------------|------------------------| | **Quenched & Low-Temp Tempered** | 110-120 ksi | 35-40 HRC | 5-8 ft-lb | Maximum wear resistance | | **Quenched & Medium-Temp Tempered** | 100-110 ksi | 30-35 HRC | 8-12 ft-lb | Optimal strength-toughness balance | | **Austempered (ADI Equivalent)** | 100-115 ksi | 32-38 HRC | 10-15 ft-lb | Superior fatigue resistance | --- ## **4. Physical Properties** | **Property** | **Value** | **Engineering Significance** | |--------------|-----------|-----------------------------| | **Density** | 0.261 lb/in³ (7.22 g/cm³) | Slightly higher than standard DI | | **Thermal Conductivity** | 20.5 Btu/(ft·hr·°F) (35.5 W/m·K) | Reduced due to alloy content | | **Coefficient of Thermal Expansion** | 6.4 × 10⁻⁶/°F (11.5 × 10⁻⁶/°C) | Similar to low-alloy steels | | **Specific Heat** | 0.11 Btu/(lb·°F) (460 J/kg·K) | Standard for ferrous materials | | **Damping Capacity** | **2-4× greater than steel** | **Good** vibration absorption | | **Electrical Resistivity** | 55-65 μΩ·cm | Higher than standard DI | | **Magnetic Properties** | Ferromagnetic | Suitable for most applications | ### **Temperature Performance:** - **Maximum Continuous Service:** 750°F (400°C) - **Short-Term Exposure Limit:** 1000°F (540°C) - **Cryogenic Performance:** Maintains toughness to -40°F (-40°C) - **Thermal Fatigue Resistance:** Good for moderate cycling --- ## **5. Manufacturing & Processing Characteristics** ### **Casting Characteristics:** - **Fluidity:** Moderate - requires careful gating design - **Shrinkage:** Significant - needs extensive risering system - **Hot Tearing Tendency:** Moderate - requires proper mold design - **Machinability (Annealed):** **Fair to Good** (40-50% of free-cutting steel) ### **Machinability Data (Annealed Condition):** | **Operation** | **Relative Efficiency** | **Tool Recommendations** | **Critical Considerations** | |--------------|------------------------|-------------------------|----------------------------| | **Turning** | 45-55% | C3/C4 carbide, coated inserts | High cutting forces, tool wear | | **Drilling** | 40-50% | Solid carbide or carbide-tipped | Peck drilling essential | | **Milling** | 40-50% | Carbide end mills, climb milling | Vibration control important | | **Grinding** | Fair | Aluminum oxide or CBN wheels | Heat generation must be controlled | ### **Required Heat Treatment:** SH-100 **must** be heat treated to achieve specified properties. Standard cycle: 1. **Austenitizing:** 1650-1750°F (900-955°C) for 1-2 hours per inch 2. **Quenching:** Oil quench (preferred) or polymer quench 3. **Tempering:** 400-600°F (205-315°C) for 2-4 hours per inch 4. **Stress Relieving:** Optional after rough machining ### **Special Processing Notes:** - **Cannot be used in as-cast condition** - **Machining typically done in annealed condition** - **Final machining after heat treatment requires carbide tools** - **Welding not recommended** without extensive pre/post heating --- ## **6. Quality Assurance (Meehanite System)** ### **Enhanced Controls for SH-100:** 1. **Alloy Precision:** Tight control of multiple alloying elements 2. **Nodularity Assurance:** Minimum 95% nodularity required 3. **Heat Treatment Verification:** Full documentation of heat treatment cycle 4. **Property Certification:** Mechanical testing from actual castings ### **Advanced Testing Protocol:** - **Mechanical Testing:** Multiple tensile tests per heat - **Microstructural Analysis:** Nodularity, matrix, carbide distribution - **Hardness Mapping:** Throughout casting cross-section - **Non-Destructive Testing:** UT, RT, or MT as required - **Fracture Toughness Testing:** For critical applications --- ## **7. Industrial Applications** ### **Primary Ultra-High-Strength Applications:** | **Application Area** | **Specific Components** | **Performance Requirements** | **Why SH-100?** | |---------------------|-------------------------|-----------------------------|-----------------| | **Heavy Equipment** | Track links, rollers, final drive gears | Extreme wear, high impact loads | Superior to standard DI, cheaper than steel forgings | | **Oil & Gas** | Wellhead components, valve bodies, hangers | High pressure, corrosive environments | Good strength-corrosion balance | | **Power Generation** | Turbine components, generator parts | High temperature, fatigue resistance | Better damping than steel at temperature | | **Mining** | Crusher components, shovel teeth | Severe abrasion, impact | Wear resistance with good toughness | | **Defense** | Armor components, vehicle parts | Ballistic protection, multi-hit capability | Cost-effective alternative to armor steel | | **High-Performance Automotive** | Crankshafts, connecting rods, gears | Fatigue strength, weight savings | Damping reduces NVH | ### **Specific Application Examples:** **Heavy-Duty Gear Applications:** - **Requirements:** High contact stress, bending fatigue, wear resistance - **SH-100 Advantages:** Can be case hardened for maximum wear - **Competition:** Often replaces 4340 steel forgings - **Cost Advantage:** 30-50% lower than forged and machined steel **Pressure-Containing Components:** - **Requirements:** High burst pressure, fatigue life, corrosion resistance - **SH-100 Advantages:** Good pressure rating with cast complexity - **Design Codes:** ASME Section VIII Div 1 applications possible - **Testing:** Typically hydrostatically tested to 1.5× design pressure **Wear-Resistant Mining Components:** - **Requirements:** Abrasion resistance, impact toughness, cost-effectiveness - **SH-100 Advantages:** Can be overlaid with hardfacing if needed - **Life Expectancy:** 2-3× standard ductile iron in severe service - **Replacement Cost:** Significantly lower than specialty steels --- ## **8. Comparative Performance** ### **Performance vs. Competitive Materials:** | **Material** | **Tensile Strength** | **Fatigue Strength** | **Damping Capacity** | **Manufacturing Cost** | **Total Cost of Ownership** | |--------------|---------------------|----------------------|----------------------|------------------------|----------------------------| | **Meehanite SH-100** | **Excellent (5/5)** | **Excellent (5/5)** | **Very Good (4/5)** | **Good (3/5)** | **Excellent (5/5)** | | **4340 Steel (Forged)** | Excellent (5/5) | Excellent (5/5) | Poor (1/5) | Fair (2/5) | Good (3/5) | | **Standard Ductile Iron** | Good (3/5) | Good (3/5) | Excellent (5/5) | Excellent (5/5) | Very Good (4/5) | | **White Iron** | Fair (2/5) | Poor (1/5) | Good (3/5) | Good (3/5) | Fair (2/5) | | **Austempered DI** | Very Good (4/5) | Excellent (5/5) | Very Good (4/5) | Fair (2/5) | Very Good (4/5) | ### **Economic Advantages:** 1. **Casting vs. Forging:** Complex shapes at lower cost 2. **Machining Reduction:** Near-net-shape capability 3. **Tooling Costs:** Lower than forging dies 4. **Performance/Cost Ratio:** Excellent for demanding applications --- ## **9. Design Guidelines** ### **Critical Design Parameters:** - **Minimum Section:** 0.375" (9.5 mm) for proper heat treatment - **Maximum Sound Section:** 2.0" (50 mm) for uniform properties - **Section Uniformity:** Critical for consistent heat treatment response - **Fillet Radii:** Minimum 0.25" (6.4 mm) in highly stressed areas - **Draft Requirements:** Standard 1-3° ### **Design Considerations:** 1. **Heat Treatment Constraints:** Uniform sections for consistent properties 2. **Stress Concentrations:** Must be minimized due to lower ductility 3. **Loading Conditions:** Best under compression or shear rather than tension 4. **Assembly Considerations:** Account for different thermal expansion vs. steel ### **Critical Limitations:** - **Not weldable** for repair without extensive procedures - **Limited ductility** compared to lower-strength ductile irons - **Heat treatment required** – cannot be used as-cast - **Higher cost** than standard ductile irons - **Specialized machining** requirements --- ## **10. Economic & Manufacturing Considerations** ### **Cost Analysis:** | **Cost Component** | **SH-100 vs. 4340 Steel** | **Advantage Rationale** | |-------------------|---------------------------|-------------------------| | **Raw Material** | 20-30% lower | Less alloy content than premium steel | | **Casting vs. Forging** | 30-50% lower | Near-net-shape reduces machining | | **Machining** | 20-40% lower | Better machinability in annealed state | | **Heat Treatment** | Comparable | Similar quenching and tempering requirements | | **Total Component Cost** | **25-45% lower** | **Significant overall savings** | ### **Production Considerations:** - **Lead Time:** Longer than standard ductile iron due to heat treatment - **Minimum Quantities:** Higher due to specialized processing - **Quality Documentation:** Extensive certification required - **Supply Chain:** Limited to qualified Meehanite foundries --- ## **Technical Summary** **Meehanite Ductliron® SH-100 Nodular Graphite Ductile Iron** represents the **ultimate high-performance solution** within the ductile iron family, offering: ### **Key Performance Advantages:** 1. **Steel-Competitive Strength:** 100+ ksi tensile capability 2. **Superior Damping:** 2-4× better than equivalent steels 3. **Excellent Wear Resistance:** Suitable for severe service 4. **Castability:** Complex geometries not possible with forging 5. **Proven Reliability:** Meehanite quality assurance ### **Application Selection Criteria:** **Choose Meehanite SH-100 when:** - Tensile requirements exceed 90 ksi - Component geometry is complex - Vibration damping provides system benefits - Cost vs. forged steel is a consideration - Wear resistance combined with strength is needed **Consider alternatives when:** - Tensile requirements exceed 120 ksi - Extreme low-temperature toughness is critical - Extensive welding is required - Very high temperatures (>750°F) are involved - Maximum corrosion resistance is primary concern ### **Economic Justification:** - **Component Cost Reduction:** 25-45% vs. forged steel alternatives - **System Performance:** Damping benefits may reduce ancillary costs - **Life Cycle Value:** Excellent durability in demanding applications - **Manufacturing Efficiency:** Complex shapes in single casting --- **Meehanite® and Ductliron® are registered trademarks of Meehanite Technology Inc.** The SH-100 grade represents the highest strength tier in the Ductliron product line, providing engineers with a cost-effective, high-performance alternative to forged alloy steels. For applications where the strength of heat-treated alloy steel is required but where casting complexity, damping characteristics, or cost considerations favor ductile iron, SH-100 offers a technically advanced solution backed by the rigorous quality controls of the Meehanite system. -:- For detailed product information, please contact sales. -: Meehanite Ductliron® SH-100 Nodular Graphite Ductile Iron Specification Dimensions Size： Diameter 20-1000 mm Length <6620 mm Size:We can customized as required Standard： Per your request or drawing We can customized as required Properties（Theoretical） Chemical Composition -:- For detailed product information, please contact sales. -: Meehanite Ductliron® SH-100 Nodular Graphite Ductile Iron Properties -:- For detailed product information, please contact sales. -:

Applications of Meehanite DuctlIron Rod® SH-100 Nodular Graphite Ductile Iron Rod -:- For detailed product information, please contact sales. -: Chemical Identifiers Meehanite DuctlIron Rod® SH-100 Nodular Graphite Ductile Iron Rod -:- For detailed product information, please contact sales. -:

Packing of Meehanite DuctlIron Rod® SH-100 Nodular Graphite Ductile Iron Rod -:- For detailed product information, please contact sales. -: Standard Packing: -:- For detailed product information, please contact sales. -: Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and Steel Rod drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 3091 gallon liquid totes Special package is available on request. E FORUs’ is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition