DAYE SPECIAL STEEL-HOT ROLLED ROUND BARS

STEEL

TYPES OF STEEL

Representative steel

DIMENSION (mm)

DELIVERY STATUS*

main usage

STEEL GRADES

CARBON STRUCTURAL STEEL

CARBON STRUCTURAL STEEL

S45C,SAE 1045,S55C

Φ16-Φ320

HOT ROLLED

General parts, making steel balls, etc.

MANGANESE STEEL

STKM13A,ST52,S355J2

DEEP-DRAWING STEEL

Φ20-Φ150

HOT ROLLED

For deep drawing processing, etc.

STRUCTURAL ALLOY STEEL

HARDENED AND TEMPERED STEEL

SAE4140,SAE4145,SCM440, 42CrMoS4, 708M40,SAE4340,SAE4330V,34CrNiMo6, 30CrNiMo8, 39NiCrMo3, DIN 1.8550

Φ20-Φ500

Normalizing or tempering

Shafts, mechanical parts, petroleum tools

GEAR STEEL

19CN5,16MnCr5,27MC5JV,SCr420H,20MnCrS5, SCM822H, SAE8620,SAE8625,SAE4320H,SAE8627,18NiCrMo5,

17CrNiMo6,18NiCrMo7-6, SAE8822H

Φ16-Φ280

HOT ROLLED OR ANNEALED

Automobile gearbox gears and rear axle gears, etc.

EASY-CUTTING NON-QUENCHED AND TEMPERED STEEL

38MnS6,43Mns,38MnVS6,C70S6,C38N2,38MnSiVS5, 49MnVS3, SAE1548

Φ16-Φ250

HOT ROLLED

Used for crankshaft, connecting rod, hub, steering knuckle, drive shaft, front axle auto parts, etc.

RAILWAY STEEL

FLATS 104*180

Φ16-Φ280

ANNEALED

Railway turnouts, train couplers, axles, etc.

ENGINEERING MACHINERY STEEL

1E0963,1E0670,1E1239C,15B36Cr,1E1671,1E0361A,1E1998

Φ16-Φ280

HOT ROLLED

widely used in the production of key parts such as crawler chain rails, crawler hubs, sprockets, heavy-duty wheel shafts, and support shafts for large-scale construction machinery.

DRILLING TOOL STEEL

50R61, SAE9315, AMS6418, SN2025, 9HS74, 5HS64

Φ20-Φ650

ANNEALED

mainly used to make drill bits and tools for oil drilling and mining.

ANCHOR CHAIN STEEL FOR SHIP

U3,M30,Q3,NVK3

Φ40-Φ160

HOT ROLLED

Anchor for ship berthing

MOORING CHAIN STEEL

R3, R3S, R4

Φ40-Φ160

HOT ROLLED OR ANNEALED

For fixed offshore oil drilling platform

PETROLEUM STEEL

AISI4145H, AISI4130,AISI4330V,AISI4137H,SAE4140,AISI4340

Φ20-Φ280

HOT ROLLED OR ANNEALED

Used for oil drilling tools, joints, etc.

BOILER TUBE BLANK

T/P11, T/P12, T/P5, T/P9, T/P1, T/P2

Φ50-Φ320

HOT ROLLED OR ANNEALED

used to manufacture superheater, reheater, high pressure boiler tube, petrochemical industry steel tube and so on.

NUCLEAR STEEL

30NCD16, 42CrMo4, 34CrMo4, 36NiCrMo16,40NCD7.03, B7

Φ20-Φ250

HOT ROLLED OR ANNEALED

Nuclear power heavy support QA1 grade material

WIND POWER STEEL

ST52-3N,18CrNiMo7-6,S355j2+N,S355J2G3+N

Φ20-Φ650

Hot rolled or annealed, normalized

Wind power motor shaft, pin, bolt, etc.

Special purpose alloy steel

SQUARE 154*154

115*115

Φ16-Φ250

HOT ROLLED OR ANNEALED

used for high yield strength, high strength limit, high yield ratio, high fatigue resistance and other special requirements.

Aerostructural steel

Φ16-Φ250

HOT ROLLED OR ANNEALED

Aircraft parts, etc.

Steel for special vehicles

Φ16-Φ250

HOT ROLLED OR ANNEALED

Crankshaft, torsion shaft and other parts

MOULD STEEL

TOOL STEEL

DIN 1.2842, DIN 1.2210

Φ16-Φ250

HOT ROLLED OR ANNEALED

Measuring tools, cutting tools and hardware tools, etc.

COLD WORK TOOL STEEL

D2,D3, SKD61,DIN 1.2080

Φ20-Φ90

HOT ROLLED OR ANNEALED

Heavy metal stamping die, fine blanking die, cold extrusion die, cold heading die, cutting tool, cold roll, wear plastic forming die

HOT WORK TOOL STEEL

H11, H13, 8407, 8418

Φ20-Φ200

HOT ROLLED OR ANNEALED

Metal hot forging die, copper alloy extrusion die, die casting die, metal hot forging die, aluminum alloy extrusion die, aluminum alloy die casting die

PLASTIC MOULD STEEL

S55C, P20, 718, 430

Φ16-Φ320

HOT ROLLED

Plastic molds with high polishing requirements, high acid-proof plastic molds, simple small plastic molds and mold bases

BEARING STEEL

Automobile bearing steel

SUJ2, 100Cr6,52100, A485

Φ16-Φ150

Hot rolled, annealed, silver bright

automobile bearing

Railway bearing steel

100CrMo7, SAE8620, SAE4320,100Cr6

Φ16-Φ180

annealed

Bearings for railway freight cars and passenger cars

bearing steel for wind power

100CrMnSi6-4, 42CrMo4

Φ150-Φ280

annealed

Wind power bearings, etc.

Military bearing steel

M50

Φ16-Φ100

annealed

High-grade bearings for special purposes such as aviation

SPRING STEEL

Auto spring steel

SUP7,SUP9A,SUP11A,55Cr3,60Cr3,52CrMoV4,51CrV4, SAE5160H

ROUNDS Φ14-Φ180

FLATS 5-38*44-150

Hot rolled

Truck leaf spring

Railway spring steel

Φ12-Φ80

silver bright

Suspension springs for railway freight cars and passenger cars

STAINLESS STEEL

stainless steel

304,321,316L,420,9Cr,13Cr

Φ20-Φ220

annealed

Stainless bearings, bolts

blade steel

X210Cr13, 17-4PH,15-5PH

Φ20-Φ90

annealed

turbine blade

heat resistant steel

Φ12-Φ80

annealed

Large gas valve

non magnetic stainless steel

Φ12-Φ80

annealed

Non-magnetic mould, non-magnetic instrument

Aviation stainless steel

Φ12-Φ80

annealed

Key components of aero-engine, etc.