Refractory Solutions for Ferrous Foundry

HWI has been a refractory supplier with the ferrous foundry industry for more than 150 years. We have one of the largest field services teams of any refractory supplier, and our dedicated ferrous foundry application specialists know the challenges specific to your refractory processes. So many customers trust the reliability of HWI products because we invented many of the most common product formulations in the ferrous foundry industry.

Spotlight

HWI Welcomes the 2026 FIRE Class
Grounded for Liftoff: The Refractory Technology Powering NASA’s Return to the Moon
HWI to Showcase Advanced Foundry Solutions at Metalcasting Congress 2026
Celebrating the International Day of Ceramics

The three biggest foundries in Sweden – Volvo, Skania, and SKF – have implemented a new, three-part refractory solution for coreless induction furnaces. Now available in North America, the new CALDE GUARD solution from HWI comprises (1) a boron-free silica-based lining that is paired with (2) a precast top ring as well as (3) specialized installation, service, and aftercare. The result is 25% longer lining life than all other refractory concepts. Read the full article in Modern Casting.

Refractory Solutions for Ferrous Foundry

Proven Refractory Products:

KORUNDAL® XD, VERSAFLOW®, KRUZITE®-70, RUBY®, FOUNDRYPAK, NISIC 20, PLASTECH®, and MAGNEL HF® US

View our Product Catalog

Availability:

  • Dedicated sales personnel ready to respond 24/7/365
  • Manufacturing plants producing refractory products in North America
  • Strategically placed distribution centers providing one of the quickest response times in the refractory industry
    • Usually shipping with same-day or next-day delivery
    • Staging and shipping to anywhere in the world
    • Ready-to-ship inventory of our best-selling refractories

Global Projects & Engineering:

  • Specialists in new projects offering a range of services, from refractory product supplier all the way to full installation partner
    • Greenfield construction
    • Manufacturing and plant modernization
  • Serving the advanced engineering needs of existing facilities
    • End-to-end delivery of refractories: drawings, products, and installation
    • Strong conceptual drawing capabilities with meticulous attention to detail

Installation, Service, & Support:

  • Support from HWI’s network of premier contractor/installers
  • Available benefits of a VAS team:
    • Single-source responsibility that delivers cost savings
    • Just-in-time delivery of refractory materials, ensuring the freshest product on the jobsite
    • Inventory solutions
    • Quick response times, minimizing outages and downtime
    • More in-depth knowledge of your business, yielding the best refractory solutions
    • Embedded HWI team members and resources at your site
  • Our Advanced Technology and Research Center is the largest facility in the United States devoted to refractory development, quality assurance, and failure analysis.

Education & Training:

  • Ongoing educational seminars at our Advanced Technology and Research Center
  • Customized, on-site training for customers upon request
  • Webcasts and video training modules upon request

 

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Products
Ferrous Foundry

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Product Description
60DB®60DB® A direct-bonded 60% magnesia, burned brick
ALADIN® 80ALADIN® 80 An 80% alumina brick
AMERICLASE 94AMERICLASE 94 A 65% magnesia gunning mix
AMERICLASE 94 SAMERICLASE 94 S A 65% magnesia, chemically bonded gunning mix
AMERICLASE 98 SAMERICLASE 98 S A 97% magnesia, chemically bonded gunning mix
AMERICLASE HAMERICLASE H A 74% magnesia, dry ramming mix
BASIC 187 GM-60BASIC 187 GM-60 A 60% magnesia, silicate bonded gunning mix
BASIC 187 GM-90BASIC 187 GM-90 A 90% magnesia, chemically bonded gunning mix
BASIC 187 GM-93BASIC 187 GM-93 A 93% magnesia, chemically bonded gunning mix
CORAL® BPCORAL® BP A burned, phosphate bonded 80% alumina brick
D-CAST TRC-OR PLUSD-CAST TRC-OR PLUS An ultra-low cement, high Alumina castable with a silicon carbide plus carbon addition
D-CAST® 85 GOLD CASTABLED-CAST® 85 GOLD CASTABLE An 85% alumina, low moisture castable
D-CAST® 85 GOLD SiC4D-CAST® 85 GOLD SiC4 An ultra-low cement, high alumina castable with 4% silicon carbide
D-CAST® 85TMCC CASTABLED-CAST® 85TMCC CASTABLE An ultra-low cement, high alumina castable
FOUNDRYPAK 55P FINE WETFOUNDRYPAK 55P FINE WET A 55% alumina, fine grained, phosphate bonded refractory plastic
FUSECRETE® CFUSECRETE® C An high alumina course aggregate castable
GLUTIN CA-2GLUTIN CA-2 A powder tundish flux for steel continuous casting.
GLUTIN SP/505GLUTIN SP/505 A granular silica based insulator for ladle or tundish applications
GLUTIN SP/505-6CGLUTIN SP/505-6C A granular silica based insulator for ladle or tundish applications
GLUTIN SP/505-CGLUTIN SP/505-C A granular silica based insulator for ladle or tundish applications
GLUTIN SP/678-1GLUTIN SP/678-1 A granular tundish flux for steel continuous casting.
GLUTIN SP/690GLUTIN SP/690 A granular tundish flux for steel continuous casting.
GLUTIN SP/715-G2GLUTIN SP/715-G2 A granular tundish flux for steel continuous casting.
GLUTIN SP/720GLUTIN SP/720 A granular tundish flux for steel continuous casting.
GLUTIN SP/730-2GLUTIN SP/730-2 A granular tundish flux for steel continuous casting.
GLUTIN SP/741GLUTIN SP/741 A granular tundish flux for steel continuous casting.
GLUTIN SP/745-F1GLUTIN SP/745-F1 A granular tundish flux for steel continuous casting.
GLUTIN SP/808-CSGLUTIN SP/808-CS A granular tundish flux for steel continuous casting.
GLUTIN SP/LCFGLUTIN SP/LCF A granular tundish flux for steel continuous casting.
GLUTIN SP/M-5CGLUTIN SP/M-5C A granular tundish flux for steel continuous casting.
GLUTIN SP/M-6CGLUTIN SP/M-6C A granular tundish flux for steel continuous casting.
GLUTIN ZGLUTIN Z A powder tundish flux for steel continuous casting.
GREENLITE® 23 LI G ON-LINE®GREENLITE® 23 LI G ON-LINE® A 2300°F rated lightweight gunning mix
GREENLITE® 23 LI PLUS DSGREENLITE® 23 LI PLUS DS A 2300°F rated lightweight gunning mix
GREENPAK®-85-MP PLUSGREENPAK®-85-MP PLUS High-Alumina, Phosphate-Bonded, Plastic Refractory
GREFCON® 98 SPGREFCON® 98 SP A 3300°F, spinel-containing castable
HOT BANK 19HOT BANK 19 A dolomite based dry ramming mix
HOT BANK 53HOT BANK 53 A dry ramming mix composed of sintered dolomite and magnesia
HP-CAST ® 93Z3HP-CAST ® 93Z3 A high-purity alumina, ultra-low cement castable
HP-CAST ® 94MA-CHP-CAST ® 94MA-C A high-purity alumina, spinel-containing, ultra-low cement, coarse castable
HP-CAST ® ULTRAHP-CAST ® ULTRA A high purity alumina, spinel forming, ultra-low cement castable
HP-CAST 93SHP-CAST 93S High-Purity Alumina, Spinel-Containing, Ultra-Low Cement Castable
INSWOOL® 3000 BLANKETINSWOOL® 3000 BLANKET A 3000°F rated, mullite ceramic fiber blanket
INSWOOL® CSW 3000 MODULEINSWOOL® CSW 3000 MODULE A folded, pre-weld, 3000°F rated ceramic fiber module
INSWOOL® CSW HP MODULEINSWOOL® CSW HP MODULE A folded, pre-weld, 2300°F rated ceramic fiber module
INSWOOL® CSW HTZ MODULEINSWOOL® CSW HTZ MODULE A folded, pre-weld, 2600°F rated ceramic fiber module
ISOTAP®ISOTAP® An Iso-Pressed magneisa and graphite taphole
KAST-O-LITE® 30 LI PLUSKAST-O-LITE® 30 LI PLUS a 3000°F, low iron, insulating castable
KAST-O-LITE® 97 L PLUSKAST-O-LITE® 97 L PLUS A 3300°F rated lightweight castable
KORUNDAL XD®KORUNDAL XD® A 90% alumina, mullite bonded brick with low porosity
KRUZITE®-70KRUZITE®-70 A 70% alumina brick
L-460L-460 A ladle slag modifier for stainless steel applications.
LADLESHIELDLADLESHIELD A silica-based tundish or ladle insulator for steel continuous casting.
LS-957-CLS-957-C A silica-based tundish or ladle insulator for steel continuous casting.
NARMAG 80 DB CHNNARMAG 80 DB CHN
NARMAG® 60 DBNARMAG® 60 DB A direct-bonded, 65% magnesia, 18% chromia burned brick
NARMAG® 95 CASTABLENARMAG® 95 CASTABLE A 95% magnesia castable
NARMAG® FGNARMAG® FG A 19% chromia, rebonded fused-grain magnesia-chrome burned brick
NARTAR® 7NARTAR® 7 A magnesia, pitch impregnated burned brick
NISIC 20NISIC 20 A nitride bonded, silicon carbide brick
PLASTECH® 50P STDPLASTECH® 50P STD A 50% alumina, phosphate bonded refractory plastic
PLASTECH® 70P STDPLASTECH® 70P STD A 70% alumina, phosphate bonded plastic refractory
PLASTECH® 90P FINEPLASTECH® 90P FINE A fine grained, 90% alumina, phosphate bonded refractory plastic
PLASTECH® 90P STDPLASTECH® 90P STD A 90% alumina, phosphate bonded refractory plastic
PLASTECH® RUBY®PLASTECH® RUBY® An alumina-chromium, phosphate bonded refractory plastic
RUBY®RUBY® An alumina-chrome brick with 10% chrome
RUBY® DMRUBY® DM An alumina-chrome brick with 10% chrome
S142®S142® A semi-rebonded 64% magnesia, 17% chrome burned brick
S145®S145® A semi-rebonded 60% magnesia, 20% chrome burned brick
SFG®SFG® A 21% chromia-containing, rebonded magnesia-chrome brick
SHOT-TECH® 60SHOT-TECH® 60 A 60% alumina, low-cement shotcrete mix
SHOT-TECH® 80SHOT-TECH® 80 An 80% alumina, low-cement shotcrete
SLID®SLID® An 18% chromia, magnesia-chrome burned brick
ST-C/24ST-C/24 An exothermic starter mold flux for steel continuous casting.
ST-C/788-1ST-C/788-1 A powder mold flux for steel continuous casting.
ST-C/936-A4ST-C/936-A4 A powder mold flux for steel continuous casting.
ST-SP 621-N2AST-SP 621-N2A A granular mold flux for steel continuous casting.
ST-SP 621C-2ST-SP 621C-2 A granular mold flux for steel continuous casting.
ST-SP VC24BST-SP VC24B A granular mold flux for steel continuous casting.
ST-SP/012CST-SP/012C A granular mold flux for steel continuous casting.
ST-SP/1047ST-SP/1047 A granular mold flux for steel continuous casting.
ST-SP/105-CST-SP/105-C A granular mold flux for steel continuous casting.
ST-SP/1209-CST-SP/1209-C A granular mold flux for steel continuous casting.
ST-SP/1240ST-SP/1240 A granular mold flux for steel continuous casting.
ST-SP/1325-2ST-SP/1325-2 A granular mold flux for steel continuous casting.
ST-SP/1593ST-SP/1593 A granular mold flux for steel continuous casting.
ST-SP/16HST-SP/16H A granular mold flux for steel continuous casting.
ST-SP/221-BC4FST-SP/221-BC4F A granular mold flux for steel continuous casting.
ST-SP/221-BC9U-CST-SP/221-BC9U-C A granular mold flux for steel continuous casting.
ST-SP/221-TR5ST-SP/221-TR5 A granular mold flux for steel continuous casting.
ST-SP/221-TR5-CST-SP/221-TR5-C A granular mold flux for steel continuous casting.
ST-SP/225-BST-SP/225-B A granular mold flux for steel continuous casting.
ST-SP/225-ISGST-SP/225-ISG A granular mold flux for steel continuous casting.
ST-SP/228-BC4-FST-SP/228-BC4-F A granular mold flux for steel continuous casting.
ST-SP/228-BC9-SST-SP/228-BC9-S A granular mold flux for steel continuous casting.
ST-SP/229ST-SP/229 A granular mold flux for steel continuous casting.
ST-SP/229-EST-SP/229-E A granular mold flux for steel continuous casting.
ST-SP/229-FST-SP/229-F A granular mold flux for steel continuous casting.
ST-SP/235-26KSST-SP/235-26KS A granular mold flux for steel continuous casting.
ST-SP/235-LF1ST-SP/235-LF1 A granular mold flux for steel continuous casting.
ST-SP/242-CST-SP/242-C A granular mold flux for steel continuous casting.
ST-SP/243ST-SP/243 A granular mold flux for steel continuous casting.
ST-SP/2502ST-SP/2502 A granular mold flux for steel continuous casting.
ST-SP/275C-2ST-SP/275C-2 A granular mold flux for steel continuous casting.
ST-SP/324-P2ST-SP/324-P2 A granular mold flux for steel continuous casting.
ST-SP/325-S1ST-SP/325-S1 A granular mold flux for steel continuous casting.
ST-SP/356ST-SP/356 A granular mold flux for steel continuous casting.
ST-SP/356-1ST-SP/356-1 A granular mold flux for steel continuous casting.
ST-SP/3609-EST-SP/3609-E A granular mold flux for steel continuous casting.
ST-SP/380-2CST-SP/380-2C A granular mold flux for steel continuous casting.
ST-SP/394ST-SP/394 A granular mold flux for steel continuous casting.
ST-SP/400ST-SP/400 A granular mold flux for steel continuous casting.
ST-SP/403-CST-SP/403-C A granular mold flux for steel continuous casting.
ST-SP/4214-BST-SP/4214-B A granular mold flux for steel continuous casting.
ST-SP/4PS-2ST-SP/4PS-2 A granular mold flux for steel continuous casting.
ST-SP/500-18NVST-SP/500-18NV A granular mold flux for steel continuous casting.
ST-SP/500-18OSST-SP/500-18OS A granular mold flux for steel continuous casting.
ST-SP/511-CST-SP/511-C A granular mold flux for steel continuous casting.
ST-SP/512-21-3MST-SP/512-21-3M A granular mold flux for steel continuous casting.
ST-SP/512-N1ST-SP/512-N1 A granular mold flux for steel continuous casting.
ST-SP/512-SV-DCST-SP/512-SV-DC A granular mold flux for steel continuous casting.
ST-SP/513-A6ST-SP/513-A6 A granular mold flux for steel continuous casting.
ST-SP/513AST-SP/513A A granular mold flux for steel continuous casting.
ST-SP/513KST-SP/513K A granular mold flux for steel continuous casting.
ST-SP/513N-2ST-SP/513N-2 A granular mold flux for steel continuous casting.
ST-SP/513N2-LCST-SP/513N2-LC A granular mold flux for steel continuous casting.
ST-SP/515AST-SP/515A A granular mold flux for steel continuous casting.
ST-SP/521ST-SP/521 A granular mold flux for steel continuous casting.
ST-SP/521-GL1A-CST-SP/521-GL1A-C A granular mold flux for steel continuous casting.
ST-SP/521CST-SP/521C A granular mold flux for steel continuous casting.
ST-SP/528-19ST-SP/528-19 A granular mold flux for steel continuous casting.
ST-SP/580ST-SP/580 A granular mold flux for steel continuous casting.
ST-SP/605-M1ST-SP/605-M1 A granular mold flux for steel continuous casting.
ST-SP/606ST-SP/606 A granular mold flux for steel continuous casting.
ST-SP/612ST-SP/612 A granular mold flux for steel continuous casting.
ST-SP/616AST-SP/616A A granular mold flux for steel continuous casting.
ST-SP/621-G2ST-SP/621-G2 A granular mold flux for steel continuous casting.
ST-SP/621-LC-1ST-SP/621-LC-1 A granular mold flux for steel continuous casting.
ST-SP/621-N2AST-SP/621-N2A A granular mold flux for steel continuous casting.
ST-SP/621-NCST-SP/621-NC A granular mold flux for steel continuous casting.
ST-SP/621-TS2ST-SP/621-TS2 A granular mold flux for steel continuous casting.
ST-SP/621C-2ST-SP/621C-2 A granular mold flux for steel continuous casting.
ST-SP/676ST-SP/676 A granular mold flux for steel continuous casting.
ST-SP/700ST-SP/700 A granular mold flux for steel continuous casting.
ST-SP/7040ST-SP/7040 A granular mold flux for steel continuous casting.
ST-SP/705-WPST-SP/705-WP A granular mold flux for steel continuous casting.
ST-SP/712ST-SP/712 A granular mold flux for steel continuous casting.
ST-SP/715ST-SP/715 A granular mold flux for steel continuous casting.
ST-SP/7263ST-SP/7263 A granular mold flux for steel continuous casting.
ST-SP/7533ST-SP/7533 A granular mold flux for steel continuous casting.
ST-SP/76ST-SP/76 A granular mold flux for steel continuous casting.
ST-SP/771-1ST-SP/771-1 A granular mold flux for steel continuous casting.
ST-SP/788-1ST-SP/788-1 A granular mold flux for steel continuous casting.
ST-SP/788-CST-SP/788-C A granular mold flux for steel continuous casting.
ST-SP/791DST-SP/791D A granular mold flux for steel continuous casting.
ST-SP/800ST-SP/800 A granular mold flux for steel continuous casting.
ST-SP/810-MLST-SP/810-ML A granular mold flux for steel continuous casting.
ST-SP/811-R1ST-SP/811-R1 A granular mold flux for steel continuous casting.
ST-SP/8250ST-SP/8250 A granular mold flux for steel continuous casting.
ST-SP/831-ISGST-SP/831-ISG A granular mold flux for steel continuous casting.
ST-SP/831-R-MODST-SP/831-R-MOD A granular mold flux for steel continuous casting.
ST-SP/8369ST-SP/8369 A granular mold flux for steel continuous casting.
ST-SP/839-CST-SP/839-C A granular mold flux for steel continuous casting.
ST-SP/84ST-SP/84 A granular mold flux for steel continuous casting.
ST-SP/855-CST-SP/855-C A granular mold flux for steel continuous casting.
ST-SP/856ST-SP/856 A granular mold flux for steel continuous casting.
ST-SP/8590-BST-SP/8590-B A granular mold flux for steel continuous casting.
ST-SP/8719ST-SP/8719 A granular mold flux for steel continuous casting.
ST-SP/876ST-SP/876 A granular mold flux for steel continuous casting.
ST-SP/9013ST-SP/9013 A granular mold flux for steel continuous casting.
ST-SP/9014ST-SP/9014 A granular mold flux for steel continuous casting.
ST-SP/908-HVST-SP/908-HV A granular mold flux for steel continuous casting.
ST-SP/933-CST-SP/933-C A granular mold flux for steel continuous casting.
ST-SP/933-HST-SP/933-H A granular mold flux for steel continuous casting.
ST-SP/933-LST-SP/933-L A granular mold flux for steel continuous casting.
ST-SP/936-A4ST-SP/936-A4 A granular mold flux for steel continuous casting.
ST-SP/936-CST-SP/936-C A granular mold flux for steel continuous casting.
ST-SP/97ST-SP/97 A granular mold flux for steel continuous casting.
ST-SP/97-BST-SP/97-B A granular mold flux for steel continuous casting.
ST-SP/AL4D-T5ST-SP/AL4D-T5 A granular mold flux for steel continuous casting.
ST-SP/B-1ST-SP/B-1 A granular mold flux for steel continuous casting.
ST-SP/CFY-25LST-SP/CFY-25L A granular mold flux for steel continuous casting.
ST-SP/K185ST-SP/K185 A granular mold flux for steel continuous casting.
ST-SP/K215ST-SP/K215 A granular mold flux for steel continuous casting.
ST-SP/NM7ST-SP/NM7 A granular mold flux for steel continuous casting.
ST-SP/NY-A2ST-SP/NY-A2 A granular mold flux for steel continuous casting.
ST-SP/TR76-2ST-SP/TR76-2 A granular mold flux for steel continuous casting.
ST-SP/TR76-2DST-SP/TR76-2D A granular mold flux for steel continuous casting.
ST-SP/TR76-2EST-SP/TR76-2E A granular mold flux for steel continuous casting.
ST-SP/TR77-2ST-SP/TR77-2 A granular mold flux for steel continuous casting.
ST-SP/TR77-2DST-SP/TR77-2D A granular mold flux for steel continuous casting.
ST-SP/TR77-2EST-SP/TR77-2E A granular mold flux for steel continuous casting.
ST-SP/TR78-2CST-SP/TR78-2C A granular mold flux for steel continuous casting.
ST-SP/TS-B1C-3ST-SP/TS-B1C-3 A granular mold flux for steel continuous casting.
ST-SP/TS-B1DST-SP/TS-B1D A granular mold flux for steel continuous casting.
ST-SP/TS-B1ZST-SP/TS-B1Z A granular mold flux for steel continuous casting.
ST-SP/TS-B3ZST-SP/TS-B3Z A granular mold flux for steel continuous casting.
ST-SP/VC24BST-SP/VC24B A granular mold flux for steel continuous casting.
T-400-STT-400-ST A powder tundish flux for steel continuous casting.
T-412T-412 A powder tundish flux for steel continuous casting.
T-670-BRT-670-BR A powder tundish flux for steel continuous casting.
T-678-1T-678-1 A powder tundish flux for steel continuous casting.
T-680T-680 A powder tundish flux for steel continuous casting.
T-709T-709 A powder tundish flux for steel continuous casting.
T-710-2T-710-2 A powder tundish flux for steel continuous casting.
T-715-G2T-715-G2 A powder tundish flux for steel continuous casting.
T-719T-719 A powder tundish flux for steel continuous casting.
T-719-1T-719-1 A powder tundish flux for steel continuous casting.
T-722T-722 A powder tundish flux for steel continuous casting.
T-730T-730 A powder tundish flux for steel continuous casting.
T-745-F1T-745-F1 A powder tundish flux for steel continuous casting.
T-75T-75 A powder tundish flux for steel continuous casting.
T-766T-766 A powder tundish flux for steel continuous casting.
T-781T-781 A powder tundish flux for steel continuous casting.
T-827-1T-827-1 A powder tundish flux for steel continuous casting.
T-828T-828 A powder tundish flux for steel continuous casting.
T-830T-830 A powder tundish flux for steel continuous casting.
T-830-2T-830-2 A powder tundish flux for steel continuous casting.
T-840T-840 A powder tundish flux for steel continuous casting.
T-86T-86 A powder tundish flux for steel continuous casting.
UN-141X TDSUN-141X TDS A powder ingot flux for steel bottom pouring.
UN101UN101 A powder ingot flux for steel bottom pouring.
UN102/SPUN102/SP A granular ingot flux for steel bottom pouring.
UN151UN151 A powder ingot flux for steel bottom pouring.
UN151UN151 A powder ingot flux for steel bottom pouring.
UNACAST® 1005XUNACAST® 1005X An 80% alumina, thermal shock resistant, pre-cast shape
VERSAFLOW® 60 PLUSVERSAFLOW® 60 PLUS A 60% alumina, low cement castable
VERSAFLOW® 70 C PLUSVERSAFLOW® 70 C PLUS A 70% alumina, coarse aggregate, low-cement castable
VERSAFLOW® 70 PLUSVERSAFLOW® 70 PLUS A 70% alumina, low-cement castable
VERSAGUN® ABR PLUSVERSAGUN® ABR PLUS A 60% alumina, low-cement gunning mix designed for abrasion resistance
VS-22VS-22 A powder ingot flux for steel bottom pouring.
VS-22-KVS-22-K A powder ingot flux for steel bottom pouring.
VS-22/SPVS-22/SP A granular ingot flux for steel bottom pouring.
VS-27-AVS-27-A A powder ingot flux for steel bottom pouring.
VS-28-BVS-28-B A powder ingot flux for steel bottom pouring.
VS-300VS-300 A powder ingot flux for steel bottom pouring.
VS-4AVS-4A A powder ingot flux for steel bottom pouring.

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