{"id":68,"date":"2026-06-18T08:49:06","date_gmt":"2026-06-18T08:49:06","guid":{"rendered":"https:\/\/www.dkteam.in\/QQSolutions\/?page_id=68"},"modified":"2026-06-23T11:29:55","modified_gmt":"2026-06-23T11:29:55","slug":"alloy-steel-casting","status":"publish","type":"page","link":"https:\/\/www.dkteam.in\/QQSolutions\/alloy-steel-casting\/","title":{"rendered":"Alloy Steel Casting"},"content":{"rendered":"\n
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\n ISO 9001:2015<\/span>\n Alloy Steel Casting \u00b7 Coimbatore Foundry \u00b7 Export Ready<\/span>\n <\/div>\n

Specialist Alloy Steel
Casting<\/span> Manufacturer India<\/h1>\n

Q&Q Solutions are experienced Alloy Steel Casting Manufacturers in India, producing heat-treated, high-integrity alloy steel castings from our Coimbatore foundry for oil & gas, heavy engineering, defence, and global OEM supply chains. Full cast-to-CNC capability under one roof.<\/p>\n

\n Alloy Steel Casting Manufacturer India<\/span>\n Alloy Steel Casting Manufacturers in India<\/span>\n <\/div>\n
\n Request an Alloy Steel Quote<\/a>\n Download Grade Datasheet<\/a>\n <\/div>\n <\/div>\n\n \n
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12+<\/p>\n

Alloy Steel Grades<\/p>\n <\/div>\n

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500kg<\/p>\n

Max Casting Weight<\/p>\n <\/div>\n

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\u00b10.1mm<\/p>\n

Tolerance (IC route)<\/p>\n <\/div>\n

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ISO<\/p>\n

9001:2015 Certified<\/p>\n <\/div>\n <\/div>\n

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Heat Treatment In-House<\/p>\n

Normalising, annealing, quenching & tempering \u2014 all carried out at our foundry.
Hardness and tensile properties verified with in-house testing lab before dispatch.<\/p>\n <\/div>\n

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Global OEM Supply<\/p>\n

As trusted Alloy Steel Casting Manufacturers in India, QQS supplies to European, Middle Eastern, and South-East Asian OEMs with full MTR documentation.<\/p>\n <\/div>\n <\/div>\n <\/div>\n\n <\/div>\n <\/div>\n \n

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\n \"Alloy\n <\/div>\n\n \n
\n About Our Alloy Steel Capability<\/span>\n

India’s Trusted Alloy Steel Casting<\/span> Experts<\/h2>\n

Alloy steel castings demand the highest level of metallurgical control \u2014 from chemistry verification at the furnace to post-heat-treatment mechanical testing. QQS has built its alloy steel casting capability around this discipline.<\/p>\n

Our Coimbatore foundry combines investment casting and sand casting routes for alloy steel \u2014 giving customers the choice of near-net-shape precision or cost-effective large-format castings, all with full in-house CNC machining and quality documentation.<\/p>\n\n

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    OES Spectrometry on Every Heat<\/p>\n

    Chemistry verified before pouring. Certificates issued as standard.<\/p>\n <\/div>\n <\/li>\n

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    In-House Heat Treatment<\/p>\n

    N, A, Q&T \u2014 full mechanical property achievement verified by test.<\/p>\n <\/div>\n <\/li>\n

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    CMM Dimensional Inspection<\/p>\n

    Critical dimensions 100% checked, reports with every shipment.<\/p>\n <\/div>\n <\/li>\n

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    CNC Machining In-House<\/p>\n

    Every alloy steel casting CNC finished in our own machine shop.<\/p>\n <\/div>\n <\/li>\n <\/ul>\n <\/div>\n\n <\/div>\n <\/div>\n\n \n

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    \n Alloy Steel Grades<\/span>\n

    Alloy Steel Grades We Cast & Machine<\/span><\/h2>\n

    Our Alloy Steel Casting Foundry in Coimbatore covers 12+ international alloy steel grades across three major families \u2014 each with full chemistry and mechanical property documentation.<\/p>\n <\/div>\n\n \n

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    \n High Strength<\/span>\n

    Chromium-Molybdenum Steel<\/p>\n

    (Cr-Mo \u00b7 4140 \u00b7 4130 \u00b7 8630)<\/p>\n

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    • Excellent hardenability and fatigue resistance<\/li>\n
    • UTS up to 1000 MPa after Q&T<\/li>\n
    • Oil & gas, pressure vessels, heavy machinery<\/li>\n
    • Standards: ASTM A217 WC6, WC9, IS 2644<\/li>\n
    • Weight range: 0.5 \u2013 500 kg<\/li>\n
    • Investment or sand casting routes available<\/li>\n <\/ul>\n <\/div>\n\n \n
      \n Low-Temp Service<\/span>\n

      Manganese-Molybdenum Steel<\/p>\n

      (Mn-Mo \u00b7 LCC \u00b7 LCB \u00b7 WCB)<\/p>\n

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      • Excellent toughness at sub-zero temperatures<\/li>\n
      • Impact tested at -46\u00b0C (Charpy)<\/li>\n
      • Offshore, cryogenic, and arctic applications<\/li>\n
      • Standards: ASTM A352 LCC, LCB, LC3<\/li>\n
      • Weight range: 1 \u2013 300 kg<\/li>\n
      • Full heat treatment and NDT available<\/li>\n <\/ul>\n <\/div>\n\n \n
        \n Wear Resistant<\/span>\n

        Nickel-Chromium Steel<\/p>\n

        (Ni-Cr \u00b7 4340 \u00b7 EN36 \u00b7 EN39)<\/p>\n

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        • Superior wear resistance and toughness<\/li>\n
        • Case-hardening or through-hardening options<\/li>\n
        • Mining, defence, heavy gearboxes<\/li>\n
        • Standards: BS EN 10293 \/ ASTM A148<\/li>\n
        • Weight range: 0.5 \u2013 200 kg<\/li>\n
        • NDT: UT, MT, PT available<\/li>\n <\/ul>\n <\/div>\n\n <\/div>\n <\/div>\n <\/div>\n\n \n
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          \n Mechanical Properties<\/span>\n

          Typical Mechanical Properties \u2014 Alloy Steel Castings<\/h2>\n

          Properties shown are for heat-treated (Q&T) condition. Actual values confirmed by test certificate issued with every shipment from our Alloy Steel Casting Foundry.<\/p>\n <\/div>\n\n \n

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          Grade \/ Equivalent<\/div>\n
          UTS (MPa)<\/div>\n
          0.2% YS (MPa)<\/div>\n
          Elongation (%)<\/div>\n
          Hardness (BHN)<\/div>\n
          Impact (J @ temp)<\/div>\n <\/div>\n\n \n
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          WCB \/ IS 1030 Gr.3<\/div>\n
          485\u2013655<\/div>\n
          0.2% YS (MPa)<\/div>\n
          Elongation (%)<\/div>\n
          Hardness (BHN)<\/div>\n
          Impact (J @ temp)<\/div>\n <\/div>\n\n \n
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          WC6 \/ Cr-Mo 1.25%<\/div>\n
          485\u2013655<\/div>\n
          0.2% YS (MPa)<\/div>\n
          Elongation (%)<\/div>\n
          Hardness (BHN)<\/div>\n
          Impact (J @ temp)<\/div>\n <\/div>\n\n \n
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          WC9 \/ Cr-Mo 2.25%<\/div>\n
          485\u2013655<\/div>\n
          0.2% YS (MPa)<\/div>\n
          Elongation (%)<\/div>\n
          Hardness (BHN)<\/div>\n
          Impact (J @ temp)<\/div>\n <\/div>\n\n \n
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          LCB \/ 0.5% Mo<\/div>\n
          450\u2013620<\/div>\n
          0.2% YS (MPa)<\/div>\n
          Elongation (%)<\/div>\n
          Hardness (BHN)<\/div>\n
          Impact (J @ temp)<\/div>\n <\/div>\n\n \n
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          LCC \/ Mn-Mo<\/div>\n
          485\u2013655<\/div>\n
          0.2% YS (MPa)<\/div>\n
          Elongation (%)<\/div>\n
          Hardness (BHN)<\/div>\n
          Impact (J @ temp)<\/div>\n <\/div>\n\n \n
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          4140 \/ Cr-Mo Q&T<\/div>\n
          900\u20131100<\/div>\n
          0.2% YS (MPa)<\/div>\n
          Elongation (%)<\/div>\n
          Hardness (BHN)<\/div>\n
          Impact (J @ temp)<\/div>\n <\/div>\n\n \n
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          4340 \/ Ni-Cr-Mo Q&T<\/div>\n
          980\u20131180<\/div>\n
          0.2% YS (MPa)<\/div>\n
          Elongation (%)<\/div>\n
          Hardness (BHN)<\/div>\n
          Impact (J @ temp)<\/div>\n <\/div>\n\n <\/div>\n <\/div>\n <\/div>\n \n
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          \n Heat Treatment<\/span>\n\n

          \n In-House Heat Treatment Capability\n <\/h2>\n\n

          \n All heat treatment carried out in our own furnaces \u2014 temperature-logged, load-certified, and traceable to the casting heat number.\n <\/p>\n <\/div>\n\n

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          Normalising<\/h3>\n\n

          \n Refines grain structure and improves toughness after casting.\n Standard treatment for carbon and low-alloy steel castings.\n <\/p>\n\n

          850\u2013950\u00b0C<\/div>\n\n <\/div>\n\n \n
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          Annealing<\/h3>\n\n

          \n Softens the casting for machining. Used for complex\n geometries requiring significant material removal.\n <\/p>\n\n

          750\u2013850\u00b0C<\/div>\n\n <\/div>\n\n \n
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          Quench & Temper<\/h3>\n\n

          \n Achieves maximum strength and toughness. Water or oil quench followed by tempering to target hardness range.\n <\/p>\n\n

          \n Q: 850\u2013950\u00b0C \u00b7 T: 550\u2013700\u00b0C\n <\/div>\n\n <\/div>\n\n \n
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          Stress Relieving<\/h3>\n\n

          \n Reduces residual stresses after welding or machining. Critical for dimensional stability in precision alloy steel castings.\n <\/p>\n\n

          550\u2013650\u00b0C<\/div>\n\n <\/div>\n\n <\/div>\n <\/div>\n <\/div>\n \n
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          \n Applications<\/span>\n

          Alloy Steel Castings Across Demanding Industries<\/span><\/h2>\n

          As Alloy Steel Casting Manufacturers in India, QQS supplies into the most demanding application environments \u2014 where material failure is not an option.<\/p>\n <\/div>\n\n \n

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          \n \"Oil\n
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          Oil & Gas \u2014 Valves & Pressure Equipment<\/p>\n

          Valve bodies, gate valves, globe valves, bonnets, and pressure vessel components in WC6, WC9, LCC grades. NACE compliant options available.<\/p>\n <\/div>\n <\/div>\n\n

          \n \"Heavy\n
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          Heavy Engineering \u2014 Mill & Mining<\/p>\n

          Mill liners, crusher jaws, grinding media, and wear-resistant parts in Mn-steel and Ni-Cr alloy steel grades.<\/p>\n <\/div>\n <\/div>\n\n

          \n \"Wind\n
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          Wind Energy \u2014 Structural Castings<\/p>\n

          Mill liners, crusher jaws, grinding media, and wear-resistant parts in Mn-steel and Ni-Cr alloy steel grades.<\/p>\n <\/div>\n <\/div>\n\n

          \n \"Marine\n
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          Marine & Offshore \u2014 Sub-Zero Service<\/p>\n

          Mill liners, crusher jaws, grinding media, and wear-resistant parts in Mn-steel and Ni-Cr alloy steel grades.<\/p>\n <\/div>\n <\/div>\n\n <\/div>\n\n \n

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          Key Part Types We Produce<\/p>\n