Tool Steel SKD10,Cr12Mo1V1, D2,1.2379,2379 Steel Round Bar

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China main port
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Min Order Qty:
25 m.t.
Supply Capability:
10000 m.t./month

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Item specifice:

Type: Alloy Steel Shape: Steel Round Bar Standard: AISI,ASTM,JIS,GB,BS,DIN,API,EN
Technique: Hot Rolled,Cold Rolled,Cold Drawn,ERW,Forged,Saw,Extruded,EFW,Spring Shape: U Channel,Square,C Channel,Hexagonal,Round,Rectangular,Oval,LTZ Surface Treatment: Galvanized,Coated,Copper Coated,Color Coated,Oiled,Dry,Chromed Passivation,Polished,Bright,Black,PVDF Coated
Steel Grade: Q195,Q215,Q235,Q215B,Q235B,RHB335,HRB400,200 Series,300 Series,400 Series,600 Series,SS400-SS490,10#,20#,A53(A,B) Certification: ISO,SGS,BV,IBR,RoHS,CE,API,BSI,UL Net Weight: as required
Length: as required Thickness: as required

Product Description:

The details of our Steel

1. Produce Standard: as the GB, AISI, ASTM, SAE, EN, BS, DIN, JIS Industry Standard


2. Produce processes: Smelt Iron -EAF smelt Billet  - ESR smelt Billet -Hot rolled or forged get the  steel round bar and  plate


3. Heat treatment:

Normalized / Annealed / Quenched+Tempered


4. Quality assurance:

All order we can received  Third party inspection, You can let SGS, BV,.. and others test company test and inspect our products before Goods shipping.

Product information



2.Equivalent Grades

SKD10/ D2/ 1.2379   
other cold work mould steel grade: D3,1.2080, Cr12MoV, Cr12, Cr12Mo1V1.


1)1.2379 Tool Steel round bars, flat/square bars,plates,sheets.

2)DIN 1.2379 Tool Steel Size Available(Length can be customized)


4.Round bar

Diameter (mm) Length (mm)

Round bar: 12~50 x 2000~5800       Hot rolled
                      50~500 2000~5800          Forged

5.Flat bar

Thickness(mm) Width(mm) Length (mm)
Flat bars/blocks: 20~600 x 50~1000 x 1000~5800

6.Surface Condition


2)D2 die steel should be free of heavy scale,deep pitting,laps,porosity,injurious segregations,excessive nonmetallic inclusions,seams,cracks,slivers,scale marks,dents,soft and hard spots,pipes or any defects that would detrimentally affect the suitability of 1.2379 mold steel.

3)Visual examination for D2 mould steel shall be made to ensure compliance with the requirements for workmanship,finish,dimensions and tolerances,identification marking and packaging.


  The permissible deviation of 1.2379 tool steel shall not exceed 3mm in 1000mm length.This applies also to bars under 1000mm in length.Measurement is taken on the concave side of D2 steel with a straight edge.


   AISI 1.2379  tool steel annealed hardness values when obtained in accordance with the latest issue of test methods and definitions A370 shall not exceed 255 Brinell.


1)Heat D2 steel slowly and uniformly to 900°C.
2)Soak for three to four hours and cool in the furnace to room temperature.
3)Re-heat 1.2379 steel to 900-1040°C and again soak for three to four hours.
4)Cool the material in the furnace to room temperature. 

Pre heat 1.2379 die steel component to the temperature 750°C.The material can be brought up to 1000°C for air cooling, or 970°C for oil quenching. Soak thoroughly at the temperature for thirty minutes per 25mm,then cool or quench. when heating for hardening,it should not exceed 1020°C.

AISI D2 steel should be done with the least possible delay after hardening.Select a suitable tempering temperature, heat slowly and uniformly.When d2 steel has reached the desired temperature, soak for at least one hour per 25mm of whole dia.Double tempering is recommended.The second tempering should be a repetition of the first. 

10. Other Tool Steel and Mould Steel grade 


 D3/1.2080/X120Cr12, D2/1.2379, SKD11, H13/1.2344, H11/1.2343/4X5MΦC, H21/1.2581, Cr12MoV/ X12MΦ, O1, O2, A2, P20, 1.2714, M2, M3, T1, 4Cr13/40X13, 2Cr13, 9Cr18, DC53, NAK80 etc.

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Tool Steel SKD10,Cr12Mo1V1, D2,1.2379,2379 Steel Round Bar

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