The core business of the company is the supply of special steel bars, in all profiles (round, square, flat, hexagonal, special profiles) and executions.
It is mainly on cold formed products, drawn, peeled or ground, that we can supply quick and complete solution useful for all needs.
Here below the range of dimensions we can produce, and steel grades we can supply:
| Norm: | EN 10025-2 |
| What are they: | Steels with a good weldability and defined by their mechanical properties at the state of supply. |
| Main grades handled: | S235JR – S275JR – S355JR – S355J2. Moreover, according to norm ASTM, the types: A105 e A350LF2. |
| Thermal treatment: | As rolled. |
| Norm: | EN 10087 |
| What are they: | Steels with added sulphur, with or without Lead, suitable for high workability machining; these steels are realized specifically for use on automatic chip machines. |
| Main grades handled: | 1) not suitable for thermal treatment: 11SMn30 (1.0715) – 11SMnPb30 (1.0718), 11SMn37 (1.0736) – 11SMnPb37 (1.0737); 2) suitable for case-hardening: 15SMn13 (1.0725); 3) suitable for hardening and tempering: 35S20 (1.0726) – 36SMnPb14 (1.0765) – 38SMn28 (1.0760) – 46S20 (1.0727) – 44SMnPb28 (1.0761). |
| Thermal treatment: | They can be supplied hot rolled and suitable for casting, but more frequently they are supplied drawn, according to EN 10277-3. |
| Norm: | ISO 683-2:2016 (ex UNI EN 10084) |
| What are they: | Steels with a low tenor of carbon <0,25% , are intended for the thermal treatment of case hardening through an enrichment of carbon inside a saturated environment. |
| Main grades handled: | C10 E/R (W.1.1121 / 1.1207) C15 E/R (W.1.1141 / 1.1140) 16/20MnCr5 (W.1.7131/7147) 16CrNi4 (UNI 7846) 17CrNi6-6 (W.1.5918) 15NiCr13 (W.1.5752) 20NiCrMo2-2 (W.1.6523) 17NiCrMo6-4 (ex 18NiCrMo5) W.1.6566 18CrNiMo7-6 (ex 17CrNiMo6) W.1.6587 16NiCrMo12 (UNI 7847-UNI 8550) ~ W.1.6657 |
| Thermal treatment: | Generally supplied annealed, but can also be supplied normalized or as rolled upon request. |
| Norm: | ISO 683-1:2016 (ex EN 10083) |
| What are they: | >Steels with a tenor of carbon C>0,25% and are intended for the thermal treatment of hardening and tempering. |
| Main grades handled: | C30 E/R (W.1.1178/W.1.1179) C35 E/R (W.1.1181/ W.1.1180) C45 E/R (W.1.1191/W.1.1201) C50 E/R (W.1.1206/W.1.1241) C60 E/R (W.1.1221/W.1.1223) 46Mn5 (W.1.1128) |
| Products acc. to specification: |
|
| Thermal treatment: | Generally supplied either annealed or as rolled upon request, but also (in round bars only) already hardened and tempered. |
| Norm: | ISO 683-2:2016 (ex EN 10083) |
| What are they: | >Steels with a tenor of carbon C>0,25% and are intended for the thermal treatment of hardening and tempering. |
| Main grades handled: | 41Cr4/41CrS4 (W.1.7035/7039) 25CrMo4/25CrMoS4 (W.1.7218/7213) 42CrMo4/42CrMoS4 (W.1.7225/7227) 50CrMo4 (W.1.7228) 51CrV4 (W.1.8159) 39NiCrMo3 (W.1.6510) (EN 10083-3) 34CrNiMo6 (W.1.6582) 30CrNiMo8 (W.1.6580) 30NiCrMo12 (~ W.1.6655 – UNI 7845) 36NiCrMo16 (W.1.6773) (EN 10083-3) 40NiCrMo7 (~W.1.6562) (UNI 7845) Boron steels: 30MnB5 (W.1.5531) 33MnCrB5 (W.1.7185) |
| Products acc. to specification: |
TK28A (steel for chains) |
| Thermal treatment: | Generally supplied either annealed or as rolled upon request, but also (in round bars only) already hardened and tempered. |
| Norm: | EN 10085 |
| What are they: | Steels with specific alloying elements, that make them suitable for case hardening through absorption of Nitrogen. |
| Main grades handled: | 31CrMoV9 (W.1.8519) – 41CrAlMo7.10 (W.1.8509). |
| Thermal treatment: | Generally supplied in round bars, annealed or hardened and tempered upon request. |
| Norm: | EN 10267 – ISO 643-5 |
| What are they: | Steels with Manganese/Vanadium that, even if the tenor or alloying element is rather low, show great characteristics of resistance coming fundamentally from the precipitation of compounds during the controlled cooling after hot rolling. They are normally used as a replacement of hardening and tempering steels, allowing to avoid the thermal treatment, with following saving of cost and time. |
| Main grades handled: | 38MnSiVS6 (W.1.1303) 46MnVS6 (~W.1.1304) 70MnVS4 (W.1.1244) |
| Thermal treatment: | Natural (as rolled) with controlled cooling, or annealed. |
| Norm: | EN 10089:2002 |
| What are they: | These steels have a great Yield point (near to breaking point), and so they get back to their normal shape very well if bent or twisted. They are used for making helicoidal springs, stabilizing bars, elastic pliers or more simply parts subject to wear. |
| Main grades handled: | 56Si7 (W.1.5026) 60SiCr8 (W.1.7108) 51CrV4 (W.1.8159) 52SiCrNi5 (~W1.7117) |
| Thermal treatment: | Supplied in the annealed state. |
| Norm: | UNI EN ISO 683-17:2014 |
| What are they: | Steels with Chromium that, due to the great hardness after hardening and tempering, together with a good resistance to wear and compression, are universally used for making spheres, rolls and rings of bearings. |
| Main grades handled: | 100Cr6 – 100CrMo7 and 100CrMn4. |
| Thermal treatment: | Normally supplied in the spheroidal annealed state. |
| Norm: | – |
| What are they: | Steels alloyed with Boron or Manganese, they have a great resistance to wear, and are normally used in the sector of agriculture (hoes, shovels, parts of diggers, earth-moving machines) or for making armour-platings, safes etc. |
| Main grades handled: | 20/30MnB5 – 27/33MnCrB5 – C70 – X120Mn12. |
| Thermal treatment: | Normally supplied as rolled or annealed |
| Norm: | EN 10028 / EN 10222 / EN 10273 |
| What are they: | These steels are not alloyed or weakly alloyed with Chromium and Molybdenum, their mechanical characteristics are well defined by the norms, and they are used mainly for making steam boilers, pressure containers, big pipes and related building elements. The non-alloyed steels of this group are marked with a P as first letter of the brand, just indicating their specific use (pressure). |
| Main grades handled: | P235GH – P250GH (C22.8) – P295GH – 16Mo3. |
| Thermal treatment: | Normally supplied as rolled. |
| Norm: | EN 10216 (10253) |
| What are they: | These are steels used in applications where creep appears: this phenomenon lead to plastic deformation (therefore permament) endless over time, when the steel is subject to the combined action of temperature and stress. The temperature range where to consider the creep goes from 350 °C for carbon steels, to around 700 °C of alloyed ones. The Series A182 groups weldable steels with a low tenor of carbon used in the making of valves, flanges, connections, tubes and parts used in environments with high temperatures. |
| Main grades handled: | F5 (W 1.7362 – X11CrMo5) – F9 (W 1.7386 – X11CrMo9.1) F11 (W 1.7338 – 10CrMo5.5) – F22 (W 1.7380 – 12CrMo9.10) F91 (W 1.4903 – X10CrMoVNb9.1) |
| Thermal treatment: | Normally supplied annealed. |
| Operating temperatures: | A182 F5: up to ~ 600 °C A182 F9: up to ~ 650 °C A182 F11: up to ~ 525 °C A182 F22: up to ~ 600 °C A182 F91: up to ~ 630 °C |
| Norm: | EN 10269 |
| What are they: | Same as above. The Series A193 groups hardening and tempering steels used mainly in the sector of linkage. |
| Main grades handled: | B7 (W 1.7225 – AISI 4140) – B16 (W 1.7711 – 40CrMoV4.6) 21CrMoV5.7 (1.7709) |
| Thermal treatment: | Normally supplied annealed or hardened and tempered. |
| Operating temperatures: | A193 B7: up to ~ 450 °C A193 B16: up to ~ 510 °C W 1.7709: up to ~ 540 °C |
They are steel grades with a high resistance to wear and thermal shocks, and so they are used in equipments that, during use, are very highly stressed.
They are divided in 4 categories according to their use:
| Norm: | DIN 17350 |
| What are they: | Steels normally used in environments whose temperatures do not exceed 200°C. |
| Main uses: | dies, punches, tools for wood working, threading dies, pliers for tooling machines, chisels, pneumatic rock drills. |
| Main grades handled: | X210Cr12 (1.2080 or AISI D3) – X155CrMoV121(1.2379 or AISI_D2) – 90MnCrV8 (1.2842) – 45NiCrMoV16 (1.2746). |
| Thermal treatment: | Normally supplied annealed. |
| Norm: | DIN 17350 |
| What are they: | Steels normally used in environments whose working temperatures are within the range 450°C/600°C. |
| Main uses: | Punches and dies for hot works, pressure die-castings moulds for aluminum, profiling rolls, extrusion dies, cylinders for rolling mills, blades for hot working shears, dies for working brass, copper, tin and lead. |
| Main grades handled: | X37CrMoV51 (1.2343) – X40CrMoV51 (1.2344 or AISI H13) – 55NiCrMoV7 (1.2714) – 30CrMoV12 (1.2365). |
| Thermal treatment: | Normally supplied annealed; 1.2714 can be supplied either annealed or hardened and tempered (HRC 40÷43 ±1). |
| Norm: | DIN 17350 |
| What are they: | Steels used in moulds for plastics where a very precise finish is needed, and also in moulds for light alloys and die-sets. |
| Main uses: | Die sets, pressure die-castings moulds for plastic, also with big dimensions. |
| Main grades handled: | 40CrMnMo7 (1.2311) – 40CrMnMoS86 (1.2312) – 40CrMnNiMo8(1.2738) – X40Cr14 (1.2083). |
| Thermal treatment: | Normally supplied hardened and tempered. X40Cr14 can be supplied either hardened and tempered or annealed. |
| Norm: | DIN 17350 |
| What are they: | Steels used in very heavy manufacturing processes, such as grinding and cut with high speed machines. |
| Main uses: | Making of cut tools such as cutters, helicoidal tips, blades, screws, broaches, moulds for ceramics with an extremely high yield. |
| Main grades handled: | AISI M2 (S6-5-2 or 1.3343) – AISI M35 (S6-5-2-5 or 1.3243) – AISIM42 (S2-10-1-8 or 1.3247). |
| Thermal treatment: | Normally supplied annealed or hardened and tempered. |
These are steels alloyed with Chromium or Chromium and Nickel, with a great capacity to oxidize (more precisely, to passivate) without getting rusty, when in contact with atmospheric agents (air, water) and chemical agents (acids etc.). Their use is very wide in almost all industrial sectors, such as oilfield and petrol chemistry, minerary, energetic, nuclear and food sector.
According to their chemical composition and mechanical structure, they are divided in 3 main categories: Austenitic, Ferritic/Martensitic, and Duplex (Austenic/Ferritic).
| Norm: | EN 10088 – EN 10095 |
| What are they: | Grades highly alloyed with Chromium (16 ÷ 20%) and Nickel (7 ÷ 18%). The tenor of carbon is normally very low (<0,08%) thus making these grades perfectly weldable; some stabilizing elements, such as Titanium (as in 316Ti) further improve the resistance to corrosion. The internal structure is austenitic, and remains stable also after thermal treatment. |
| Main uses: | Equipments for the chemical industry, valves, pumps, paper and textile industries, workings with chip machining. In particular, AISI304 (X5CrNi18-10) is the most widespread grade, known also as “Inox 18-10″, it’s widely used both in the food industry (cutlery, pots and pans) and in all industrial sectors; it’s very much appreciated also in architecture (handrails, roofings, decorative sheets, knobs). |
| Main grades handled: | series 200 and 300 (among which, AISI 304 – AISI 309 – AISI 310 e AISI 310S, AISI 316 – AISI 316L – AISI 316Ti). |
| Thermal treatment: | They are normally supplied solubilyzed or hardened and tempered. |
| Norm: | EN 10088 – EN 10095 |
| What are they: | Grades alloyed only with Chromium (12÷27%). Some Martensitic grades also show a good resistance to creeping. The internal structure is mainly ferritic or martensitic. |
| Main uses: | Very stressed parts, such as shafts, pumps rods, nuts and bolts. Parts of valves, frames of centrifugal machines, propeller shafts. Surgical instruments, spheres and rolls.
In particular 17-4PH is used on oil fields valve parts, chemical process equipments and nuclear reactors componets due to its excellent resistence to corrosion. |
| Main grades handled: | Series 400, among which AISI 430 (ferritic), and the martensitic AISI 410 – AISI416 – AISI420(A/B/C). the precipitation hardening grade 17-4PH (AISI 630) |
| Thermal treatment: | They are normally supplied solubilyzed or hardened and tempered. |
| Norm: | EN 10088 – EN 10095 |
| What are they: | They show a tenor of chromium always higher than15%, and nickel rather low (5÷6%); at room temperature they present under the microscope a structure which is made of both austenite and ferrite, thus the definition of “biphasic” or “austenitic-ferritic” and therefore the name Duplex. They have a good resistance to corrosion and better mechanical characteristics of both austenitic and ferritic grades. They also show a very good resistance to pitting; good weldability. |
| Main uses: | Heat exchangers, earth-moving machineries, tanks and tubs for liquids with a great concentration of chlorine, refrigerators using marine water, desalinators. |
| Main grades handled: | DUPLEX: AISI 329 (1.4460), F51 (1.4462 – S31803 – X2CrNiMoN22.5.3) SUPERDUPLEX: F53 (1.4410 – S32750 – X2CrNiMoN25.7.4), F55(1.4501 – S32760 – X2CrNiMoCuWN25.7.4) Austenitic: XM-19 (S20910 – X2CrNiMnMoNNb21.16.5.3) Super austenitic: AISI904L (1.4539 – N08904 – X1NiCrMoCu25.20.5), F44 (1.4547 – S31254 – X1CrNiMoCuN20.18.7) |
| Thermal treatment: | They are normally supplied solubilyzed. |
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