Carbon Steel

(redirected from Carbon steels)
Also found in: Dictionary, Thesaurus, Wikipedia.

carbon steel

[′kär·bən ′stēl]
(metallurgy)
Steel containing carbon, to about 2%, as the principal alloying element.

Carbon Steel

 

steel that does not contain alloying components. Depending on the content of carbon, the steel is classified as low-carbon (up to 0.25 percent carbon), medium-carbon (0.25–0.6 percent), or high-carbon (more than 0.6 percent). A distinction is also made between plain carbon steel and the carbon steel used for structural members. Plain carbon steels include both hot-rolled (section, shaped, plate, sheet, strip) and cold-rolled (sheet) steel; structural carbon steels include hot-rolled and forged semifinished shapes with a diameter or thickness up to 250 mm, calibrated steel, and bright bar.

Carbon steels are smelted in open-hearth, two-bath, and arc furnaces and oxygen-blown converters. Ferromanganese, ferro-silicon, ferrovanadium, aluminum, and titanium are used in deoxidizing carbon steels, and the extent of deoxidation determines the steel’s classification as rimmed, killed, or semikilled. The steel can be alloyed with minute quantities of titanium, zirconium, boron, and rare-earth elements to improve the physicochemical properties and fabricating characteristics. This alloying creates a fine-grained structure and lowers the extent of zonal liquation and the contamination of the steel by nonmetallic inclusions. The alloying also reduces the tendency toward crack formation during hot plastic deformation and increases the resilience at temperatures below 0°C, an increase that permits the use of carbon steel in a variety of climates (- 40° to 60°C).

Carbon steel is cast into ingots (top or bottom pouring) and semifinished shapes (using continuous-casting machines); the weight of the ingots can reach 35 tons. The steel is also used for producing castings. Cast carbon steel differs from wrought steel of the same composition by having lower ductility and resilience.

Carbon steel is the most common ferrous metal, and in the mid-1970’s it accounted for more than 75 percent of the production of ferrous metallurgy in the USSR.

REFERENCES

Smoliarenko, D. A. Kachestvo uglerodistoi stall, 2nd ed. Moscow, 1969.
Kachestvo slitka spokoinoi stali. Moscow, 1973.

D. A. SMOLIARENKO

carbon steel

1.Steel having no specified minimum content of alloying elements.
2. Steel having a specified minimum copper content not exceeding 0.40%.
3. Steel having a maximum specified content as follows: manganese 1.65%, silicon 0.60%, copper 0.60%.
References in periodicals archive ?
In scrap yards, stainless steel is almost never placed in the same pile as scrap iron and carbon steel.
Materials of construction; Material, Any special carbon steels, Special stainless steels, Overlays, cladding, coating, Stress relieving policy.
Materials and performance; Carbon steel materials, Special carbon steel materials, Special stainless steel materials, Clad or coat.
Says Dr Samir K Banerji, senior research metallurgist, Foote Mineral (which claims to be the leading producer of boron additives), "We estimate that current annual use of boron-containing steels is about 1-million tons in carbon steels, and 300,000 tons in alloy, including bar, rod, sheet, and plate.
AK Steel said today that it will increase transactional prices for carbon steel products by $150 per ton beginning on May 1, 2004.
The remaining $150 million includes charges to cover the ultimate disposal of the following businesses in Armco's Other Steel and Fabricated Products segment: Cytemp Specialty Steel, a producer of high temperature super alloys; Armco Stainless & Alloy Products, a provider of conversion services; Flour City Architectural Metals, a designer and fabricator of custom curtain wall systems; Tex-Tube Division, a manufacturer of carbon steel line pipe; and Miami Industries, a carbon steel tubing maker.
NYSE: AS) announced today that its board of directors had given final approval to install a new $100 million thin-slab caster at the company's flat-rolled carbon steel facility in Mansfield, Ohio.
is a flat-rolled carbon steel joint venture between Armco Inc.
In addition to more stainless, electrical and carbon steel capacity, its recent acquisition adds steel tubular products, special alloys and fabrication and erection of non-residential construction products to its business portfolio.
Cyclops, headquartered in Pittsburgh, is a producer of flat-rolled stainless and carbon steel, high performance alloy products and tubular steel products.
Cyclops is a producer of flat-rolled stainless and carbon steel, high performance alloy products and tubular steel products.