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Dongguan songshun mould steel CO.,LTD.
ADD:No.4 Dongda Street, ShaTou, Dongguan City,Guangdong Province,China.
Songshun customer£?Mrs
Songshun Steel customer
service:Lu Mr
Home ?·Hot work steel ?·1.2713
Large Forging Mold L6 round bar
Price:Hot work mould steel
Minimum Order Quantity:Container, in seaworthy packing
Supply Ability:Bright or black
Payment Terms:Hot work steel



Chemical composition of skt4 steel :

Country Steel NO. C Si Mn Cr Ni Mo P S Other
ChINA(GB) 5CrNiMo 0.50-0.60 ≤0.40  0.50-0.80  0.50-0.80  1.40-1.80  0.15-0.30  ≤0.030  ≤0.030  — 
USA(AISI)  L6  0.65-0.75 0.20-0.40  0.55-0.65 0.65-0.85  1.25-1.75  (0.25)   —   —   V:(0.25)
JAPAN(SKT4)  SKT4 0.50-0.60 ≤0.35  0.60-1.00  0.70-1.00  1.30-2.00  0.20-0.50  ≤0.030  ≤0.030   — 
GERMANY(1.2713) 1.2713  0.50-0.60 0.10-0.40  0.65-0.95  0.60-0.80  1.50-1.80  0.25-0.35  —   —   V:0.05-0.15


Round Diameter Length
50mm-500mm 2000mm-5800mm
Steel plate Thickness Width Length
20-400mm 80-1000mm 2000mm-5800mm

Pre-hot treatment:

1.Annealing after forging:heat to 760-780°c,keep 4-6h,furnace cold below 500°c out and air cooling ,hardness after annealing is 197-241HBS,

2.Isothermal after forging:heat to 850-870°c,keep 4-6h,isothermal temperature680°c,keep 4-6h,furnace cold below 500°c

out and air cooling ,hardness after forging is 197-241HBS.

3.Forging die renovation annealing:heat to 710-730°c,keep 4-6h,furnace cool below 500°c,out and air cooling,hardness

after annealing is 197-241HBS.



1.good strength and high abrasion resistance

2.good quenching

special steel tool steel (25).jpg


About us

Dongguan Songshun Mould Steel Co., Ltd. is located in Changan Town,Dongguan City,China.  After 10 years' development,

 now we have the capacity to provide complete services from manufacturing and marketing to distributing. The main grades

 of mould steel, tool steel and special steel which we market are listed as follows:

Main Products:

1. Plastic Mould Steel

2. Hot Work Steel

3. Cold Work Steel 

4. Alloy Steel 

5. Bearing Steel

6. Stainless Steel 
(201/202/301/302/304/304L/304LN/304TI/307/316/316H /316TI317 317L/309 330 660 631 632 630/1.4301/1.4401/1.4935/1.4024/1.4109/1.4112/1.4125)

7. High Speed Steel 

 8. Carbon Steel


Steel Production Process:


Looking forward to cooperate with you! Warmly welcome to our factory!


If you have any question please feel free to contact with us in any time. We will give you reply as soon as possible.

Have a nice day!  :)


Dongguan songshun mould steel CO.,LTD.
ADD£?No.4 Dongda Street, ShaTou, Dongguan City,Guangdong Province,China.
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