Dongguan Songshun Mould Steel Co.,LTD is a steel manufacturer located in Dongguan, China that produces a variety of steel grades including plastic mould steel, alloy steel, hot work steel, cold work steel, bearing steel, stainless steel, high speed steel, and carbon steel. The document provides the chemical compositions and available sizes for flat bars and round bars of each steel grade. It concludes with contact information for the company.

1. Dongguan Songshun Mould Steel Co.,LTD
No.4 Dongda Street ,Sha Tou, Chang'an Town, Dongguan, China.
Tel: 86-0769-85475596 Fax: 86-0769-85843365
Web: www.mysongshun.com E-mail: info@mysongshun.com-
Product Catalogues
Steel Grade Chemical Composition (%) Flat Bars(mm) Round Bar (mm)
Plastic
Mould
Steel
AISIP20/DIN1.2311 C:0.40, Mn:1.5, Cr:2.0, Mo:0.2, Si:0.3
Thickness:20-650
Φ20~650Width:205-2000
Length:2000~5800
AISIP20+Ni/DIN1.2738 C:0.38, Mn:1.4, Cr:2.0, Mo:0.2, Si:0.3, Ni:1.0
Thickness:20-800
Φ20~800Width:205-2000
Length:2000~5800
AISIP21/NAK80
C:0.1~0.15, Mn:1.0~2.0, Si:0.15~1.0,
Mo:0.~0.4, Ni:2.5~3.5
Thickness:20-300
Φ20~400Width:205-2000
Length:2000~5800
AISI420/DIN1.2316/S136H
C:0.3~0.42, Si:0.6~1.3, Cr:13~14.5,
Mo:0.2~0.7
Thickness:20-400
Φ3~350Width:200~2000
Length:2000~5800
AISI420/DIN1.2316/S136H C:0.38, Si:0.8,Mn:0.5, Cr:13.5,V:0.3
Thickness:20-400
Φ3~400Width:200~610
Length:2000~5800
Alloy Steel
4140/42CrMo/SCM440
C:0.38~0.45, Si≤0.40,Mn:0.6~0.9, P≤0.035, S
≤0.030,Cr:0.9~1.2,Mo:0.15~0.3
Thickness:20-400
Φ20~500Width:200~610
Length:2000~5800
4340/40CrNiMo/SNCM439
C:0.37~0.44, Si:0.17~0.37,Mn:0.5~0.8, P≤
0.025, S≤0.025, Cr:0.6~0.9, Mo:0.15~0.25,
Ni:1.25~1.65
Thickness:20-400
Φ20~500Width:200~610
Length:2000~5800
5140/41Cr4/SCr440
C:0.37~0.44, Si:0.17~0.37,Mn:0.5~0.8, P≤
0.035, S≤0.035, Cr:0.8~1.1, Ni:≤0.03
Thickness:20-400
Φ20~500Width:200~610
Length:2000~5800
4135/34CrMo4/1.7220
C:0.32~0.4, Si:0.17~0.37,Mn:0.4~0.7, P≤
0.035, S≤0.035, Cr:0.8~1.1, Ni:≤0.3,
Mo:0.15~0.25
Thickness:20-400
Φ20~500Width:200~610
Length:2000~5800
3435/1.5755
C:0.27~0.33, Si:0.17~0.37,Mn:0.3~0.6, P≤
0.035, S≤0.035, Cr:0.6~0.9, Ni:2.75~3.15
Thickness:20-400
Φ20~500Width:200~610
Length:2000~5800
6150/51CrV4/1.8159
C:0.46~0.54, Si:0.17~0.37,Mn:0.5~0.8, P≤
0.03, S≤0.03, Cr:0.8~1.1, Ni:≤0.35,
Mo:0.1~0.2
Thickness:20-400
Φ20~500Width:200~610
Length:2000~5800
8620/20CrNiMo
C:0.17~0.23, Si:0.17~0.37,Mn:0.6~0.95, P≤
0.035, S≤0.035, Cr:0.4~0.7, Mo:0.2~0.3,
Ni:0.35~0.75
Thickness:20-400
Φ20~500Width:200~610
Length:2000~5800

2. Dongguan Songshun Mould Steel Co.,LTD
No.4 Dongda Street ,Sha Tou, Chang'an Town, Dongguan, China.
Tel: 86-0769-85475596 Fax: 86-0769-85843365
Web: -
Product Catalogues
Steel Grade Chemical Composition (%) Flat Bars(mm) Round Bar (mm)
Hot Work
Steel
AISIH13/DIN1.2344/SKD61
C:0.38, Si:1.0,Mn:0.4, P<0.030, S:0.04,
Mn:1.3, V:0.9, Cr:5.3
Thickness:12-400
Φ20~800Width:205-800
Length:2000~5800
AISIH11/SKD6
C:0.38~0.43, Si:0.8~1.2, Mn:0.2~0.5, P≤0.030,
S≤0.030, Mo:1.1~1.6, V:0.3~0.6, Cr:4.75~5.5
Thickness:12-400
Φ20~800Width:205-800
Length:2000~5800
Cold Work
Steel
AISIO1/DIN1.2510 C:0.93, Mn:1.1, Cr:1.6, V:0.1, W:0.6
Thickness:12-200
Φ18~650Width:205-600
Length:2000~5800
AISID2/DIN1.2379/SKD11
C:1.40-1.60, Si:0.30-0.50,Mn:0.20-
0.50,Cr:11.0-13.0, Mo:0.7-1.20, V≤1.0
Thickness:8~400
Φ20~800Width:100-605
Length:2000~5800
AISID3/DIN1.2080
C:2.0~2.3, Si≤0.40, Mn≤0.40, P≤0.030, S≤
0.030, Cr:11.5~13.0
Thickness:8~400
Φ20~800Width:100-605
Length:2000~5800
AISID5/DIN1.2601
C:1.45, Si:0.30, Cr:11.5, Mn:0.30, Mn:0.4~0.6,
V:0.3~0.4
Thickness:8~400
Φ20~650Width:100-605
Length:2000~5800
AISID6/DIN1.2436
C:2.0~2.3, Si:≤0.40, Cr:11.0~12.5, Mo:≤
0.35, P:0.03, W:0.6~0.9, S:0.03
Thickness:8~400
Φ20~650Width:100-605
Length:2000~5800
Bearing
Steel
100Cr6/GCr15/SAE52100
C:0.95~1.05, Si:0.15~0.35, Mn:0.25~0.45, P≤
0.025, S≤0.025, Cr:1.4~1.65, Mo:0.1max
Φ5.5~500
Stainless
Steel
200/300/400Series:201/202/
301/302/303/304(L)/316(L)
Φ3~300mm
High
Speed
Steel
AISIM2/DIN1.3343
C:0.8~0.9, Si:0.2~0.45, Cr:3.8~4.4,
Mn:0.15~0.4, Mo:4.5~5.5, V:1.75~2.20,
W:5.5~6.75
Thickness:20-400
Φ20~400Width:200-800
Length:2000~5800
AISIM4/W6Mo5Cr4V4
C:1.25~1.40, Si:≤0.45, Cr:3.8~4.5, Mn:≤0.4,
Mo:4.2~5.0, V:3.7~4.20, W:5.2~6.0
Thickness:20-400
Φ20~400Width:200-800
Length:2000~5800
AISIM42/DIN1.3247
C:1.05~1.15, Si:0.15~0.65,Mn:0.15~0.4,
Cr:3.5~4.25, V:0.9~1.35,Mo:9.0~10.0,
W:1.15~1.85, Co:7.75~8.75
Thickness:12-400
Φ20~400Width:205-800
Length:2000~5800
AISIM35/DIN1.3243
C:0.8~0.9, Si:0.2~0.45, Mn:0.15~0.4,
Cr:3.75~4.5, V:1.75~2.25,Mo:4.5~5.5,
W:5.5~6.5, Co:4.5~5.5
Thickness:12-400
Φ20~400Width:205-800
Length:2000~5800
AISIT1/DIN1.3355/W18Cr4V
C:0.73~0.83, Si:0.2~0.4, Mn:0.1~0.4,
Cr:3.8~4.5, V:1.0~1.2,W:17.2~18.7,
Thickness:12-400
Φ20~400Width:205-800
Length:2000~5800
Carbon
Steel
AISI1045/CK45/45#
C:42~0.47, Si:0.17~0.37,Mn:0.50~0.80, P≤
0.035, S≤0.035, Cr≤0.022, Ni≤0.0025
Thickness:20-800
Φ20~600Width:1600-2300
Length:2000~5800
AISI1050/CK50/50#
C:48~0.55, Si:0.17~0.37,Mn:0.50~0.80, P≤
0.035, S≤0.035, Cr≤0.022, Ni≤0.0025
Thickness:20-800
Φ20~600Width:1600-2300
Length:2000~5800
Remark: the above information is for your reference only.We can provide the sizes as your required.
www.mysongshun.com E-mail: info@mysongshun.com