Heat-Resistant & Special Steel
Components working inside furnaces, boilers or smelters cannot use ordinary steel — above 800°C, carbon steel loses strength and oxidises fast. That is why heat-resistant steel exists: alloys with high chromium and nickel that keep their shape and strength when hot.
We supply the heat-resistant and special-steel family — from austenitic SUS310S to tool steels — for steel mills, cement, glass, petrochemical and smelter plants across Indonesia.
Grades we supply
- SUS310 / 310S — austenitic 25Cr-20Ni, resists continuous oxidation up to ~1,100°C; the standard for furnace baskets, muffles and kiln conveyors.
- SUS309 / 309S — 23Cr-13Ni for temperatures up to ~1,000°C, often used as welding filler for heat-resistant steel.
- 253MA / 314 — very-high-temperature alloys for furnace applications demanding long service life.
- Tool steel — SKD11, SKD61 (H13), SKH51 for dies, punches and heat/wear-resistant moulds.
- Structural alloy steel — SCM440 (4140), VCN and chrome-moly for shafts and high-stress mechanical parts.
Forms & sizes
Plate 3–60 mm, round bar Ø10–300 mm, pipe and tube, welding wire, plus heat-resistant castings such as grate bars and radiant tubes to order. Cutting and basic machining can be arranged.
Applications by industry
Steel mills & foundries: heat-treatment trays, baskets and fixtures. Cement: grate coolers, nozzles and mechanical lining. Glass & ceramics: rollers and kiln components. Petrochemical: reformer tubes and supports. Manufacturing: tool-steel dies and punches for pressing and forging.
Sourcing & lead time
Most of these grades are sourced to order because they are specific — we import from specialist mills in China, Japan and Europe. Lead time is typically 4–8 weeks; some popular tool steels (SKD11, H13) we hold in limited stock. Exact estimates appear in the quote.
Quality assurance
Mill certificates for composition and mechanical properties are included; for tool steel we provide hardness (HRC) data and the mill's heat-treatment recommendation.
Indicative pricing
The figures below are indicative — please request the catalog; price depends heavily on grade, nickel content and quantity.
| Product | Grade | Indicative price |
|---|---|---|
| Heat-resistant plate (per kg) | SUS310S | IDR 130,000 – 180,000 |
| Heat-resistant round bar (per kg) | SUS310S | IDR 150,000 – 210,000 |
| Tool steel (per kg) | SKD11 / H13 | IDR 95,000 – 160,000 |
| Alloy steel (per kg) | SCM440 / 4140 | IDR 28,000 – 45,000 |
Matching refractory lining materials are on the refractory bricks and refractory castable pages. Delivery to smelter hubs such as Gresik and mining Samarinda.