| Major categories of steel grades |
Subcategories |
Grade/specification |
Product form |
Application areas |
| Alloy structural steel |
Gear steel |
20CrMnTi series, 22CrMo series |
Round steel, forging blanks |
Mechanical manufacturing, gear processing, transmission components |
| Alloy structural steel |
Crankshaft steel |
42CrMo series, 40CrNiMo |
Round bars, forgings |
Engine crankshafts, heavy machinery shafts |
| Alloy structural steel |
Steel for petroleum |
4130, AISI4145H |
Round steel, sheet |
Oil drilling, oil machinery, pipe fittings |
| Alloy structural steel |
Steel for industrial manufacturing |
20CrMnMo |
Round, square, flat steel |
Heavy machinery, construction machinery, structural components |
| Alloy structural steel |
Steel for high-pressure boilers |
P91, P92, P9, P11
P22, Super 304 |
Medium and thick plates, round steel |
Power station boilers, pressure vessels, high-temperature equipment |
| Superior steel - tool and die steel |
Hot work die steel |
H13, 5CrMnMo, H11 |
Plates, round steel, forgings |
Hot forging dies, hot extrusion dies, hot stamping dies |
| Superior steel - tool and die steel |
Cold work die steel |
Cr12MoV, D2, 11Cr17,
4241 |
Plates, round bars, tool billets |
Cold stamping dies, wire drawing plates, cutting tools, measuring tools |
| Special steel - stainless steel |
Austenitic stainless steel |
304, 316L, 321, 347H
316H, 316LN |
Medium and thick plates, round bars, wire rods |
Chemicals, food, medical equipment |
| Special Steel - Stainless steel |
Super austenitic stainless steel |
904L, S31254, C4, 926,
8367 |
Medium and thick plates, cut pieces |
Seawater desalination, high concentration acid and alkali chemicals |
| Special steel - Stainless steel |
Duplex stainless steel |
S32205, S32304,
S32750, S32760 |
Sheet, round steel, composite sheet |
Marine engineering, petrochemicals, shipbuilding |
| Special Steel - Stainless steel |
Martensitic stainless steel |
431, 1Cr13, 2Cr13,
3Cr13, 9Cr18, SUP13Cr |
Round steel, sheet, bright bar |
Cutting tools, valves, mechanical parts, medical devices |
| Special steel - stainless steel |
Precipitation-hardening stainless steel |
13-8PH, 15-5PH,
630(17-#PHPH |
Round steel, sheet, forgings |
Aerospace, precision machinery, high-end
Molds |
| Special steel - stainless steel |
Ferritic stainless steel |
430, 430F, 409L, 444,
446 |
Plates, round bars, wire rods |
Household appliances, auto parts, decorative materials |
| Special steel - superalloys |
Iron-nickel-based superalloys |
Incoloy800, Incoloy800H
Incoloy825, 8810, 8825 |
Plates, round bars, ingots |
Photovoltaic solar thermal, petrochemical, nuclear power, high-temperature equipment |
| Special steel - superalloys |
Nickel-based superalloys |
Inconel600, Inconel690,
Inconel718, GH3625,
SUH660(A286/GH2132) |
Plates, round bars, electroslag ingots |
Aerospace, nuclear power, high-end equipment |
| Special steel - corrosion-resistant alloy |
Nickel-based corrosion-resistant alloys |
Monel400, N08810,
N08811, N08825,
N08120, C-276 |
Plates, composite plates, cut pieces |
Chemical engineering, petrochemicals, Marine engineering, seawater desalination |
| Special steel - Corrosion-resistant alloy |
High silicon corrosion-resistant steel |
C6 |
Plates, ingots |
High concentration sulfuric acid chemical, corrosive environment equipment |
| Special steel - Special performance steel |
Ultra-high strength steel |
300M |
Plates, forgings |
High-end equipment |
| Superior steel - Special performance steel |
Non-magnetic steel |
Zero magnetic structural steel, 4J36 permalloy |
Plates, round steel |
Ultra-high voltage transformers, zero magnetic space equipment |
| Superior steel - Wear-resistant steel |
High manganese wear-resistant steel |
Mn13 |
Plates, cut pieces |
Hydroelectric equipment, mining machinery, wear-resistant
Structural components |
| Special steel - composite plate |
Metal composite sheet |
Titanium steel composite plate (TA1/Q235), nickel
Base alloy composite plate (825/X60) |
Composite plates, cut pieces |
Chemical engineering, Marine engineering, pressure vessels |
| Special Steel - Ingots |
Mold cast ingots |
0.6-30 tons (square ingot, round ingot, flat
Ingots, plum ingots) |
Mold casting ingots, billets |
Forging billets, machining, high-end
Equipment |
| Superior steel - ingots |
Electroslag ingot |
1-8 ton electroslag round ingots (Consac electroslag furnace) |
Electroslag ingots, high-quality billets |
High-end forgings, superalloys, military
Billets for use |
| Superior steel - long products |
Wire |
φ5.5 to Φ15(stainless steel, alloy steel) |
Wire rods |
Machining, fasteners, wire products |
| Superior steel - long products |
Round steel |
①10~φ75(small bar),
Medium 65 to φ200(big stick) |
Round bars, bright bars, turned bright bars |
Mechanical shafts, fasteners, die blanks |
| Superior steel - long products |
Square steel/flat steel |
□60 - □260 square steel,
60~180×180~380 flat steel |
Square steel, flat steel, forging |
Mechanical structural parts, engineering construction, frame components |
| Special steel - sheet |
Medium and thick plates |
Thickness 5-140mm, width
≤3700mm, length ≤18000mm |
Medium and thick plates, cut pieces, straightening plates |
Marine engineering, pressure vessels, nuclear power
Equipment |
| Special steel - sheet |
Thin sheet |
Thickness 0.6-6mm, width
≤1500mm |
Cold-rolled sheet, hot-rolled sheet, pickled sheet |
Precision machinery, electronic equipment, decoration
Sheet metal |
| Superior steel - machined parts |
Cut parts/forgings |
Special shape cut pieces of various specifications, large size forgings |
Laser/plasma/water jet cut parts, forging blanks |
Custom equipment, engineering components, high-end
Molds |
