📍 Works: Baidyabati, Hooghly, West Bengal 📞 +91 98744 82288
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Aris Foundry - Premier Cast Iron & Ductile Iron Manufacturer
⚙️ Foundry Engineering & Metallurgy Insights

Technical Journal & Casting Insights

Explore authoritative engineering guides, metallurgy specifications, EN124 casting standards, and export-grade casting technology from ISO 9001 certified foundry specialists.

All Topics Agricultural Castings (13) Agricultural Machinery Castings (0) Ductile & SG Iron Castings (4) EN124 Standards & Quality Testing (0) Foundry (99) Gratings & Drainage (13) Industrial & Machinery Castings (0) Industrial Castings (2) Manholes & Covers (11) Materials & Standards (15) Municipal & Utilities (1) Municipal & Drainage Castings (2) Pipe Fittings & Valves (0) Railway Engineering Castings (0) Steel Fabrication & Structures (0) Utility Access Products (9)
⏱️ 6 min read

What Are Construction Castings?

Construction castings are specially manufactured iron cast products used in civil, municipal, industrial, and commercial construction p…

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⏱️ 5 min read

What Is a Catch Basin?

A catch basin is a critical drainage component used to collect surface water runoff and direct it into the drainage system while trappi…

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⏱️ 4 min read

What Is Gully Grating?

Gully grating is a drainage cover installed over a gully inlet to collect surface runoff while protecting the drain opening from larger…

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⏱️ 4 min read

What Are Solid Top Manholes?

Solid top manholes are closed-surface manhole covers and frames used to seal and protect underground access points. Unlike gratings, th…

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⏱️ 4 min read

What Are Meter Box and Lids?

Meter boxes and lids are utility access products used to protect water meters and related fittings installed at or below ground level.…

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⏱️ 4 min read

What Is a Surface Box?

A surface box is a protective access box or cover installed at or near ground level above underground valves or related utility control…

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⏱️ 4 min read

What Is Channel Grating?

Channel grating is a drainage cover system installed over a linear channel or trench drain. Its purpose is simple but critical: it allo…

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🏭 Industrial Manufacturing

Engineering Casting Capabilities & Divisions

Aris Foundry delivers high-integrity Grey Cast Iron and Ductile SG Iron castings engineered to international ASTM, BS EN, DIN, and IS standards for global infrastructure.

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Municipal Utilities & EN124

Heavy-duty EN124 D400 manhole covers, C250 kerb drain units, and gully gratings engineered for highway municipal drainage networks.

View EN124 Range →
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Pipe Fittings & Valves

High-pressure ductile iron pipe fittings, flanged bends, equal tees, dismantling joints, and sluice valve boxes manufactured to ISO 2531.

Explore Fittings →
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Railway & Transit Castings

Safety-critical railway track castings, cast iron brake blocks, rail chairs, slide baseplates, and locomotive ballast counterweights.

Railway Solutions →
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Agricultural & Machinery

High-wear agricultural machinery castings, tractor axle housings, CNC machined wheel hubs, and plow points built for farm equipment OEMs.

Farm Implement Parts →
🔬 Metallurgy Specifications

Casting Grade Mechanical Property Benchmarks

A side-by-side engineering comparison of standard Grey Cast Iron versus Spheroidal Graphite (SG) Ductile Iron poured at our Baidyabati Works.

Mechanical Property Grey Cast Iron (EN-GJL-250 / FG 260) Ductile SG Iron (EN-GJS-500-7 / 500/7) Ductile SG Iron (EN-GJS-400-18 / 400/18)
Tensile Strength (MPa) 250 MPa min 500 MPa min 400 MPa min
Yield Strength 0.2% (MPa) — (Brittle Mode) 320 MPa min 250 MPa min
Elongation % ($A$) 0.3% – 0.8% 7.0% min 18.0% min
Impact Energy (Charpy V) Low (< 2 J) 12 Joules 18 Joules (-20°C Low Temp)
Brinell Hardness (HBW) 180 – 240 HB 170 – 230 HB 130 – 180 HB
Primary Applications Machine beds, counterweights, drainage gratings EN124 D400 covers, gearbox housings, axle supports High-pressure water pipe fittings, valve bodies
❓ Engineering FAQ

Frequently Asked Questions — Metallurgy, Standards & RFQs

Authoritative technical answers from Aris Foundry engineering specialists regarding casting metallurgy, EN124 compliance, tolerances, and custom OEM manufacturing.

What is the key difference between Grey Cast Iron and Ductile Iron (SG Iron)?

Grey cast iron contains sharp flake graphite, offering excellent acoustic damping, high thermal conductivity, and machinability, but very low elongation (<1%).

Ductile iron is inoculated with magnesium causing graphite to precipitate as spherical nodules. This eliminates internal stress risers, yielding tensile strength up to 700 MPa and elongation up to 18% matching cast carbon steel.

Which BS EN 124 load classes are available for municipal manhole covers?

We manufacture municipal castings across all EN 124 classes: A15 (1.5 tonne pedestrian), B125 (12.5 tonne car parks), C250 (25 tonne kerbside channels), D400 (40 tonne heavy carriageways), E600 (60 tonne docks/industrial), and F900 (90 tonne airport runways).

What non-destructive testing (NDT) and lab certifications do you perform?

Every furnace heat is verified by 24-channel optical emission spectrometry (OES). We perform Universal Testing Machine (UTM) tensile/elongation tests, Brinell hardness checks, magnetic particle inspection (MPI), ultrasonic testing, and hydrostatic pressure testing up to 25 bar.

Can Aris Foundry manufacture to ASTM, DIN, BS, and IS engineering standards?

Yes. We regularly manufacture according to ASTM A48 / A536, BS EN 1561 / 1563, ISO 1083 / 2531 / 9523, DIN 1691 / 1693, and IS 210 / 1865 specifications for international buyers.

What are the lead times for custom pattern tooling and batch production?

Custom pattern tooling and first-article prototype development take 2 to 3 weeks depending on part complexity. Full containerized batch production and export shipping take 3 to 5 weeks from sample sign-off.

Do you provide in-house CNC precision machining and surface coatings?

Yes. Our in-house machine shop operates CNC turning centers, vertical machining centers (VMC), and boring mills. Coatings include anti-corrosive bitumen dip, epoxy coating (FBE), zinc primer, and hot-dip galvanizing exceeding 250 microns.

What is your export capability and international container packing standard?

We export to Europe, the Middle East, North America, and Southeast Asia. Castings are packed on ISPM-15 certified heat-treated wooden pallets, steel-strapped, shrink-wrapped, and stuffed with Indian Customs Self-Sealing certification at Baidyabati Works.

How can I submit drawings for a fast Request for Quotation (RFQ)?

Submit 2D drawings (PDF/DWG) or 3D STEP models via our RFQ modal dialog, email info@arisfoundry.com, or message WhatsApp (+91 98744 82288). Detailed technical quotes are returned within 24 hours.

⚡ Fast Turnaround Engineering Estimates

Need Custom Tooling or Bulk Industrial Castings?

Connect directly with our metallurgy engineers and production estimators to receive comprehensive technical quotes, dimensional tolerances, and containerized export schedules.

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