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Valve Steel

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China Valve Steel Manufacturers
 

Sichuan liaofu Special Steel Co., Ltd. was established in 2001, specializing in special steel production and inventory as the main business. After several years of development, the company has gradually formed a complete production and operation system of smelting, refining, forging and heat treatment.

 

We produce and supply valve steel, stainless steel, valve steel, carbon steel, alloy steel, carbon structural steel, alloy structural steel, stainless steel, tool steel, wear-resistant steel, high-speed steel, casting steel and so on.

in 2001

ichuan Liaofu Special Steel Company.,Ltd was established in 2001

In 2005

Obtained the national export license and the customs certificate since 2005.

In 2007

In 2007, we concluded the first export order

in 2009

We have set up a sales department for rare metals such as titanium and copper 

mainly produce of the Valve Steel

Our factory mainly produce below vavle steel grades:
Din 1.4718 X45crsi93 and jis suh1 china 4cr9si2 vavle steel
Din 1.4871 X53crmnni21-9 astm21-4N and JIS SUH35 vavle steel

DIN X40CrSiMo10-2 1.4731 JIS SUH3 China 4cr10si2mo vavle steel

21-2N X55CrMnNiN20-8 1.4875 x55cr2mn8ni2n vavle steel

First 12 Last 1/2

What is valve steel?

 

Valve steel is an important branch of heat-resistant steel, is the manufacture of internal combustion engine intake and exhaust valves dedicated special materials. This material is often in the 450 ~ 900 ℃ high temperature and 3000 ~ 7000kPa burst pressure under working conditions, and long-term gasoline, diesel and other gas high-temperature corrosion and scouring and the valve itself and the friction of the valve seat. Therefore, the valve material in the highest working temperature must have sufficient heat resistance, high-temperature corrosion resistance, oxidation resistance, wear resistance and impact resistance.

 

Valve steel (gas valve steel; valve steel) is suitable for the manufacture of various valves using the steel, also known as gas valve steel (gas valve steel). In order to improve the abrasion resistance and corrosion resistance of valve steel, it can also be surface aluminum and surface tungsten carbide surface modification treatment.

 

What is the classification of Valve steel (gas valve steel; valve steel)?

 

The basic classification of valve steel
Valve steels are divided into two main categories: martensitic and austenitic. Each of these two types of valve steel has its own unique properties and application scenarios.

 

Martensitic valve steel
Characteristics: High temperature strength and toughness at high working temperatures, good hardness, wear resistance, oxidation resistance and corrosion resistance.


Applications: Mainly used in the manufacture of intake and exhaust valves for gasoline and diesel engines, and is a key material in engines4.
Commonly used materials: e.g. 1Cr9Si2 and 1Cr10Si2Mo steels, which not only provide the required mechanical properties, but also further improve wear and corrosion resistance through surface modification treatments (e.g., aluminum infiltration and surfacing of cemented carbides)4.
Austenitic Valve Steels
Austenitic valve steels are known for their excellent machinability and weldability, and are suitable for a wide range of industrial environments.

Other ways of categorizing valve steels
In addition to classification based on chemical composition, valve steels can be classified in more detail according to their structure and use:

 

Classification by structure and use
Cut-off class valves: such as gate valves, globe valves, mainly used to connect or cut off the medium in the pipeline5.
Check class valves: such as check valves, used to prevent the medium backflow 5.
Safety class valves: such as safety valves, used to protect equipment and systems from overpressure hazards 5.
Regulating valves: such as regulating valves, throttle valves and pressure reducing valves, used to adjust the medium pressure, flow and other parameters5.
Shunt class valves: such as distribution valves, three-way valves, traps, used to distribute, separate or mix the media in the pipeline5.
Special-purpose valves: such as pipe-cleaning valves, venting valves, drain valves, exhaust valves, etc., for specific industrial processes5.

 

According to the nominal pressure classification
Vacuum valves: valves with working pressure lower than standard atmospheric pressure5.
Low pressure valve: valves with nominal pressure PN≤1.6Mpa5.
Medium pressure valve: valves with nominal pressure PN 2.5Mpa, 4.0Mpa, 6.4Mpa5.
High-pressure valve: valves with nominal pressure PN of 10.0Mpa~80.0Mpa5.
Ultra-high-pressure valve: valves with nominal pressure PN≥100.0Mpa5.

 

Classified by driving mode
Automatic valve: rely on the medium's own energy to make the valve action 5.
Power-driven valves: drive using a variety of power sources, such as electric valves, pneumatic valves, hydraulic valves5.
Manual valve: with the help of handwheels, handles, levers, etc. by manpower to manipulate the valve action 5.

 

Commonly used valve material comparison table?

 

Domestic and foreign common material grade
  Type of material German international standard USA UK 法国 日本 中国
DIN ISO AISI UNS ASTM BSI AFNOR JIS GB
17007 17006 Standard grades grades   Standard grades grades grades 牌号 牌号 牌号
Material No. grades
1 foundry iron 0.6018 GG18       A48 Cl 25 1452Gr180   FC15 HT150
2 0.602 GG20 185Gr 200     A48 Cl 30 1452Gr220 Ft20 FC20 HT200
3 0.6022 GG22       A48 Cl 30 1452Gr220   FC20 HT200
          F12102 A126 B        
          F12802 A126 C        
4 0.06025 GG25 185Gr 250     A48 Cl 35,45 1452Gr260 Ft25 FC25 HT250
5 0.0603 GG30 185Gr 300     A48 Cl 45 1452Gr300 Ft30 FC30 HT300
6 nodular graphite iron 0.704 GGG-40 1083/400-12     A536 60-40-18 2789Gr370/17 FGS 400-12 FCD40 QT40-17
2789Gr420/12
7 0.7042 GGG-42 1083/400-12     A536 60-40-18 2789Gr420/12 FGS 400-12 FCD40 QT40-17
8 0.705 GGG-50 1083/500-7     A536 60-45-12 2789Gr500/7 FGS500-7 FCD45 QT42-10
            A395 60-40-18        
          F43001 A439 D-2B       球墨抗镍铸铁
9 cast steel 1.042 GS-38.3       A27 Gr60-30 3100GrA2 230-400M SCA1 ZG15
10 1.0443 GS-45       A27 Gr65-35 3100GrA3 280-480M SCA2 ZG25
11 1.0446 GS-45.3       A27 Gr70-36 3100GrA3 280-480M SCA2 ZG25
            A216 WCC     SCPH2  
            A352 LCC     SCPL1  
  Chromium-molybdenum cast steel           A217 WC6     SCPH21 C0.05~0.2
Cr1.0~1.5
Mo0.45~0.65
            A217 WC9     SCPH32 C0.05~0.18
Cr2.0~2.75
Mo0.9~1.2
            A217 C5       C≤0.2
Cr4.0~6.5
Mo0.45~0.65
                       
12 Alloy cast steel 1.4008 G-X12Cr14       A743 GrCA-15 3100 410C21 Z12CN13.02M SCS1 ZG1Cr13
13 1.4027 G-X20Cr14       A743 GrCA-15 3100 420C29 (Z20C13M) SCS2 ZG2Cr13
GrCA-40
14 1.4059 G-X22CrNi17       A743 GrCB-30 3146ANC2 Z22CN17.01M SCS12 ZG1Cr17Ni2
15 1.4138 G-X120CrMo292       A743 ～GrCC-50   Z120CD29.02M    
16 1.4308 G-X6CrNi189     J92600 A351 GrCF-8 1504 304C15 Z6CND18.10M SCS13 ZG0Cr18Ni9
J92650 A743 3100 304C15
17 1.4313 g-x5cRnI134       A743 GrCA-6NM   Z6CN13.04M SCS5  
A757 GrE3N
18 1.4336 G-X20CrNi248             (Z20CN24.08M)    
19 1.434 G-X40CrNi274     J92615 A743 ～GrCC-50   (Z40CN27.04M)    
            A351 CF3       C≤0.03
Cr:18.0~21.0
Ni:8.0~11.0
20 1.4405 G-X5CrNiMo165 DP4991C45     A743 ～GrCA-6NM        
21 Alloy cast steel 1.4408 G-X6CrNiMo1810       A351 GrCF-8M 1504 316C16 Z6CND18.12M SCS14 ZGoCr18Ni12Mo2
A743 3100 316C16
          S31700 A351 CG8M        
22 1.4463 G-X6CrNiMo2482                  
23 1.45 G-X7NiCrMoCuNb2520       A351 GrCN-7M   Z3NCDU25.20M SCS23  
A743
24 1.4552 G-X7CrNiNb189       A351A743 GrCF8C 1504 347C17 Z6CNNb18.10M SCS21 ZGoCr18Ni11Nb
3100 347C17
25 1.4581 G-X7CrNiMoNb1810       A351 GrCF-10MC 3100 318C17 Z6NNb18.12M SCS22 ZGoCr18Ni12Mo2Nb
26 1.6902 G-X6CrNi1810     J92720 A351 ～GrCF-8   Z6CN18.10M SCS13 ZGoCr18Ni9
27 structural steel 1.1121 Ck10 683/XI Type2 1010 G10100 A576 Gr1010 ～970 040 A10 XC10 S10C 10
970 045 M10
28 1.1141 Ck15 683/XI Type2 1015 G10150 A29 Gr1015 ～970 040 A15 XC18 S15C 15
A576 Gr1017 970 080 M15
        1018 G10180           C:0.15~0.2
        12L14 G12144           C:≤0.15
Pb:0.15~0.35
        4140   1913 B7       C0.38~0.43
Cr0.8~1.1
Mo0.15~0.25
            A352 LC3       C:≤0.15
Ni:3.0~4.0
            A182 F22       C:0.05~0.15
Cr2.0~2.5
Mo0.87~1.13
29 1.1151 Ck22 683/1 C25e 1023 G10230 A29 Gr1023 ～970 050 A20 XC25 S25C 25
A576 970 070 M20
30 1.1157 40Mn4   1039 G10390 A29 Gr1039 970 150 M36 35M5   40Mn
A576
31 1.1158 Ck25 683/1 25e 1025 G10250 A108 Gr1025 970 060 A25 XC25 S25C 25
A576
32 1.1181 Ck35 683/1 C35e 1034 G10340 A29 Gr1034 970 060 A35 XC38H1 S35C 35
970 080 M40
33 1.1191 Ck45 683/1 C45e 1045 G10450 A108 Gr1045 970 080 M46 XC48H1 S45C 45
A576 970 070 M55
34 1.1221 Ck60 683/1 C60e 1064 G10640 A29 Gr1064 970 060 A62   S58C 60
970 080 A62
35 high alloy steel 1.4006 X10Cr13 683/XⅢ 3 410 S41000 A276 Type410 970 410 S21 Z12C13 SuS410 1Cr13
C:≤0.15
Cr11.5~13.5
A182 GrF6a Z10C13
36 1.4021 X20Cr13 683/XⅢ 4 ～420 ～S42000 A276 Type420 970 420 S37 Z20C13 SuS420J1 2Cr13
37 1.4024 X15Cr13           970 420 S29 ～Z12C13 SuS410J1 1Cr13Mo
38 1.4028 X30Cr13 683/VⅢ 5         ～970 420 S45 Z30C14 SuS420J2 3Cr13
39 1.4034 X40Cr13 683/VⅢ 5a ～420 ～S42000     ～970 420 S45 Z40C14   4Cr13
40 high alloy steel 1.4057 X22CrNi17 683/XⅢ 9 431 S43100 A276 Type431 970 431 S29 (Z22CN17) SuS431 1Cr17Ni2
  ～Z15CN16.02
41   1.4104 X12CrMoS17 683/T13 8a ～430F ～S34020       Z10CF17 SuS304F 1Cr17
                         
42   1.43 X12CrNi188   ～302 ～S30200 A479   ～970 302 S25 ～Z10CN18.09 SuS302 1Cr18Ni9
43   1.4301 X5CrNi189 683/XⅢ 11 304 S30400 A271 Type304 970 304 S15 Z6CN18.09 SuS304 0Cr19Ni9
  A276
44   1.4306 X2CrNi189 683/XⅢ 10 304L S30403 A276/A479 Type304L 970 304 S12 Z2CN18.10 SuS304L 00Cr19Ni11
45   1.4401 X5CrNiMo1810 683/XⅢ 20 316 S31600 A276/A479 Type316 970 316 S16 Z6CND17.11 SuS316 0Cr17Ni12Mo2
  A182 Gr F316
            S31700 A479         C:0.08
Cr18.0~20.0
Ni:11.0~15.0
Mo3.0~4.0
46   1.4404 X2CrNiMo1810 683/XⅢ 19 316L S31603 A276/A479 Type316L ～970 316 S12 Z2CND17.12 SuS316L 00Cr17Ni14Mo2
47   1.4406 X2CrNiMoN1812   316LN   A276 Type 316LN 1510 316 S61-3      
48   1.4435 X2CrNIMo1812 683/XⅢ 19a 316L S31603 A276 Type316L 970 316 S12 Z2CND17.13 SuS316L 00Cr17Ni14Mo2
49   1.4436 X5CrNiMo1812 683/XⅢ 20a 316 S31600 A276 Type316 970 316 S16 Z6CND17.12 SuS316 0Cr17Ni12Mo2
  A182 Gr F316
50   1.446 X8CrNiMo275   ～329 ～S32900       (Z8CND27.05) SuS329J1 0Cr26Ni5Mo2
51   1.4541 X10CrNiTi189 683/XⅢ 15 321 S32100 A276 Type321 170 321 S12 Z6CNT18.10 SuS321 0Cr18Ni11Ti
  A193 B8T 980-LW18
52   1.4542 X5CrNiCuNb174 683T16 1 630 S17400 A564 ～Type630 ～(17/4/2,5PH) Z6CNU17.04 SuS630 0Cr17Ni4Cu4Nb
53   1.455 X10CrNiNb189 683/XⅢ 16 347 S34700 A276 Type347 970 347 S17 Z6CNNb18.10 SuS347 0Cr17Ni11Nb
54   1.4571 X10CrNiMoTi1810 683/XⅢ 21 ～316Ti ～S31635 A276 ～Type316Ti 970 320 S17 Z6CNDT17.13   1Cr18Ni12Mo2Ti
  Z6CNDT17.12
55   1.69 X12CrNi189   302 S30200       ～Z10CN18.09 SuS302 1Cr18Ni9
                Carpenter）20       0Cr23Ni28Mo3Cu3Ti
                HastelloyB-2       00CrNi70Mo28V
                Hastelloy c-276       00NiCr16Mo16W
                Hastelloy c-22       00NiCr20Mo13W
                Monel K-500       Ni70Cu30Al
                Stellite31       Co55CrNiWNb
                         

 

Chemical Composition of Common Valve Steels

Chemical composition table of common steel
Grade % chemical composition Overseas grades
C Si Mn P S Cr Ni Cu Mo Ti 美国 日本
10# 0.07~0.14 0.17~0.37 0.35~0.65· ≤0.035 ≤0.035 ≤0.3 ≤0.25 ≤0.25     1010/1012 S10C/S12C
15# 0.12~0.17 0.17~0.37 0.35~0.65 ≤0.035 ≤0.035 ≤0.15 ≤0.25 ≤0.25     1015 S15C
20# 0.17~0.24 0.17~0.37 0.35~0.65 ≤0.035 ≤0.035 ≤0.25 ≤0.25 ≤0.25     1020 S20C/S22C
25# 0.22~0.30 0.17~0.37 0.50~0.80 ≤0.035 ≤0.035 ≤0.25 ≤0.25 ≤0.25     1025 S25C
30# 0.27~0.35 0.17~0.37 0.50~0.80 ≤0.035 ≤0.035 ≤0.25 ≤0.25 ≤0.25     1030 S30C
35# 0.32~0.40 0.17~0.37 0.50~0.80 ≤0.035 ≤0.035 ≤0.25 ≤0.25 ≤0.25     1035 S35C
40# 0.37~0.44 0.17~0.37 0.50~0.80 ≤0.035 ≤0.035 ≤0.25 ≤0.3 ≤0.25     1040 S40C
45# 0.42~0.50 0.17~0.37 0.50~0.80 ≤0.035 ≤0.035 ≤0.25 ≤0.3 ≤0.25     1045 S45C
50# 0.47~0.55 0.17~0.37 0.50~0.80 ≤0.035 ≤0.035 ≤0.25 ≤0.3 ≤0.25     1050 S50C
55# 0.52~0.60 0.17~0.37 0.50~0.80 ≤0.035 ≤0.035 ≤0.25 ≤0.3 ≤0.25     1055 S55C
16Mn 0.13~0.19 0.2~0.6 1.2~1.60 ≤0.03 ≤0.03 ≤0.3 ≤0.3 ≤0.25        
20Mn 0.17~0.23 0.17~0.37 0.7~1 ≤0.035 ≤0.035 ≤0.25 ≤0.3 ≤0.25        
25Mn 0.22~0.29 0.17~0.37 0.7~1.0 ≤0.035 ≤0.035 ≤0.25 ≤0.3 ≤0.25        
30Mn 0.27~0.34 0.17~0.37 0.7~1.0 ≤0.035 ≤0.035 ≤0.25 ≤0.3 ≤0.25        
40Mn 0.37~0.44 0.17~0.37 0.7~1.0 ≤0.035 ≤0.035 ≤0.25 ≤0.3 ≤0.25        
50Mn 0.48~0.56 0.17~0.37 0.7~1.0 ≤0.035 ≤0.035 ≤0.25 ≤0.3 ≤0.25        
60Mn 0.57~0.65 0.17~0.37 0.7~1.0     ≤0.25 ≤0.3 ≤0.25        
65Mn 0.62~0.7 0.17~0.37 0.9~1.2 ≤0.035 ≤0.035 ≤0.25 ≤0.3 ≤0.25        
70Mn 0.67~0.75 0.17~0.37 0.9~1.2 ≤0.035 ≤0.035 ≤0.25 ≤0.3 ≤0.25        
Q195 0.06~0.12 0.12~0.30 0.25~0.50 ≤0.045 ≤0.050              
Q215A 0.09~0.15 0.12~0.30 0.25~0.55 ≤0.045 ≤0.050              
Q215B 0.09~0.15 0.12~0.30 0.25~0.55 ≤0.045 ≤0.045              
Q235A 0.14~0.22 ≤0.3 0.3~0.65 ≤0.045 ≤0.050              
Q235B 0.12~0.20 ≤0.3 0.3~0.67 ≤0.045 ≤0.045              
Q235C ≤0.18 ≤0.3 0.35~0.80 ≤0.040 ≤0.040              
Q235D ≤0.17 ≤0.3 0.35~0.80 ≤0.035 ≤0.035              
Q345B ≤0.20 ≤0.55 1.0~1.6 ≤0.04 ≤0.04              
55SiMn 0.52~0.60 1.5~2.0 0.6~0.9 ≤0.035 ≤0.035 ≤0.35 ≤0.35 ≤0.25        
60Si2Mn 0.56~0.64 1.5~2.0 0.6~0.9 ≤0.035 ≤0.035 ≤0.35 ≤0.35 ≤0.25        
60Si2MnA 0.56~0.64 1.6~2.0 0.6~0.9 ≤0.03 ≤0.03 ≤0.35 ≤0.35 ≤0.25        
15Cr 0.12~0.18 0.17~0.37 0.40~0.70 ≤0.035 ≤0.035 0.7~1.0 ≤0.03 ≤0.03     5115 SCr415
20Cr 0.18~0.24 0.17~0.37 0.50~0.80 ≤0.035 ≤0.035 0.7~1.0 ≤0.03 ≤0.03 ≤0.15   5120 SCr420
30Cr 0.27~0.34 0.17~0.37 0.50~0.80 ≤0.035 ≤0.035 0.80~1.10 ≤0.03 ≤0.03     5130 SCr430
35Cr 0.32~0.39 0.17~0.37 0.50~0.80 ≤0.035 ≤0.035 0.80~1.10 ≤0.03 ≤0.03     5135 SCr435
40Cr 0.37~0.44 0.17~0.37 0.50~0.80 ≤0.035 ≤0.035 0.80~1.10 ≤0.30 ≤0.30 ≤0.15   5140 SCr440
15CrMo 0.12~0.18 0.17~0.37 0.40~0.70 ≤0.035 ≤0.035 0.80~1.10 ≤0.30 ≤0.30 ≤0.40~0.55      
20CrMo 0.17~0.24 0.17~0.37 0.40~0.70 ≤0.035 ≤0.035 0.80~1.10 ≤0.30 ≤0.30 0.15~0.25      
30CrMo 0.26~0.34 0.17~0.37 0.40~0.70 ≤0.035 ≤0.035 0.80~1.10 ≤0.30 ≤0.30 0.15~0.25      
35CrMo 0.32~0.4 0.17~0.37 0.40~0.70 ≤0.035 ≤0.035 0.80~1.10 ≤0.30 ≤0.30 0.15~0.25      
42CrMo 0.38~0.45 0.17~0.37 0.50~0.80 ≤0.035 ≤0.035 0.90~1.20 ≤0.30 ≤0.30 0.15~0.25      
60CrMo 0.55~0.65 0.17~0.30 0.50~0.80 ≤0.020 ≤0.015 0.50~0.80 ≤0.25   0.30~0.40      
20MnMo 0.17~0.23 0.15~0.40 1.10~1.40 ≤0.025 ≤0.015 ≤0.30 ≤0.30 ≤0.25 0.20~0.35      
25CrMo4 0.22~0.29 0.10~0.40 0.60~0.90 ≤0.035 ≤0.035 0.90~1.20 ≤0.030 ≤0.10 0.15~0.30      
Chemical composition of common steel
grade Chemical composition table％ OVERSEAS
C Si Mn P S Cr Ni Cu Mo Ti USA JAPAN
42CrMo4 0.38~0.45 ≤0.40 0.60~0.90 ≤0.035 ≤0.035 0.90~1.20     0.15~0.30      
5CrNiMo 0.50~0.60 ≤0.40 0.50~0.80 ≤0.030 ≤0.030 0.50~0.80 1.40~1.80 ≤0.30 0.15~0.30      
34CrNiMo6 0.30~0.38 0.25~0.30 0.50~0.80 ≤0.035 ≤0.035 1.30~1.70 1.30~1.70   0.15~0.30      
40CrNiMo 0.37~0.44 0.17~0.37 0.50~0.80 ≤0.025 ≤0.025 0.60~0.90 1.25~1.65 ≤0.025 0.15~0.25      
40CrMnMo 0.37~0.45 0.17~0.37 0.90~1.20 ≤0.035 ≤0.035 0.90~1.20 ≤0.30 ≤0.30 0.20~0.30      
20CrMnTi 0.17~0.23 0.17~0.37 0.80~1.10 ≤0.035 ≤0.035 1.00~1.30 ≤0.30 ≤0.30   0.04~0.10    
1Cr18Ni9 ≤0.15 ≤1.0 ≤2.0 ≤0.035 ≤0.03 17.0~19.0 8.0~10.0       302 SUS302
Y1Cr18Ni9 ≤0.15 ≤1.0 ≤2.0 ≤0.20 ≤0.15 17.0~19.0 8.0~10.0   ≤0.6   303 SUS303
0Cr18Ni9 ≤0.07 ≤1.0 ≤2.0 ≤0.035 ≤0.03 17.0~19.0 8.0~10.0       304 SUS304
00Cr19Ni10 ≤0.03 ≤1.0 ≤2.0 ≤0.035 ≤0.03 18.0~20.0 8.0~12.0       304L SUS304L
1Cr19Ni12 ≤0.12 ≤1.0 ≤2.0 ≤0.035 ≤0.03 17.0~19.0 10.5~13.0       305 SUS305
0Cr25Ni12 ≤0.08 ≤1.0 ≤2.0 ≤0.035 ≤0.03 24.0~26.0 19.0~22.0       310S SUS310S
0Cr17Ni12Mo2 ≤0.08 ≤1.0 ≤2.0 ≤0.035 ≤0.03 16.0~18.5 10.0~14.0   2.0~3.0   316 SUS316
00Cr17Ni114Mo2 ≤0.03 ≤1.0 ≤2.0 ≤0.035 ≤0.035 16.0~18.0 12.0~15.0   2.0~3.0   316L SUS316L
0Cr18Ni9Ti ≤0.07 ≤1.0 ≤2.0 ≤0.035 ≤0.03 17.0~19.0 8.0~11.0     5C％-.070 321 SUS321
2Cr13 0.16~0.25 ≤1.0 ≤1.0 ≤0.035 ≤0.03 12.0~14.0 ≤0.6       420 SUS420J1
9Cr18MoV 0.85~0.95 ≤0.8 ≤0.8 ≤0.035 ≤0.03 17.0~19.0 ≤0.6   1.0~1.3   440B SUS440B
0Cr17Ni7Al ≤0.09 ≤1.0 ≤1.0 ≤0.035 ≤0.03 16.0~18.0 6.5~7.75 ≤0.5     631 SUS631
ZGMn13Cr2     11.0~13.0     2            
35CrMnSiA 0.32~0.39 1.10~1.40 0.80~1.10 ≤0.025 ≤0.025 1.10~1.40 ≤0.03 ≤0.025        
60Si2MnA 0.52~0.60 1.5~2.0 1.0~1.3 ≤0.035 ≤0.035 ≤0.35 ≤0.35 ≤0.25        
40SiMn 0.39~0.45 1.10~1.40 1.10~1.40 ≤0.035 ≤0.035 ≤0.30 ≤0.30 ≤0.30 ≤0.15      
08F 0.05~0.11 ≤0.03 0.25~0.50 ≤0.035   ≤0.10 ≤0.30 ≤0.20        

Mechanical properties of common valve steel

 

Tensile Strength: This is the maximum stress at which the steel will resist tearing. Different valve steels have different tensile strength requirements. For example, ASTM A105, a common carbon steel for valves, typically has a tensile strength between 485 and 620 MPa.

 

Yield Strength: This is the stress at which the steel begins to deform plastically. Yield strength is critical to the safety of the valve in service. For example, WCB is a commonly used valve steel with a yield strength typically between 200 and 230 MPa.

 

Elongation: This is the ratio of the maximum elongation of a steel before it is drawn to its original length. Elongation reflects the plastic properties of the steel. In general, the higher the elongation, the better the plasticity of the steel. For example, the elongation of ASTM A105 is typically between 20% and 35%.

 

Hardness: This is a measure of how soft or hard the steel is. The higher the hardness, the better the wear and compressive strength of the steel. For example, the hardness of WCB is typically between 20 and 25 HRC.

 

 

Sichuan Liaofu Special Steel Company is one of the leading valve steel manufacturers and suppliers in China for 20 years. We warmly welcome you to wholesale valve steel made in China here from our factory. All products are with high quality and competitive price.

1 3401 High Manganese Steel Plate, 1 3343 HSS Plate