Chinese
Available 24/7 at contact@steel-grades.com
SGSG
Post Your Request Now
Toggle menu
Hello, Sign inMy Account

St55

Favorite Datasheet

China 宝钢Q/BQB St55 管道、容器、设备结构用无缝钢管 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: St55 / St55
Category Grade Standard Region/Area Standard Content
Metals St55 Q/BQB 203 China 管道、容器、设备结构用无缝钢管

Chemical composition(mass fraction)(wt.%) of the St55

Element Min Max Similar
Cu - 0.2000 -
Ni - 0.2500 -
Cr - 0.2500 -
S - 0.0200 -
P - 0.0250 -
Mn 0.5000 0.8000 -
Si 0.1700 0.3700 -
C 0.3300 0.4100 -
Cu - 0.2500 -
Ni - 0.2500 -
Cr - 0.2500 -
P - 0.0350 -
S - 0.0350 -
Mn 0.5000 0.8000 -
Si 0.1700 0.3700 -
C 0.3300 0.4100 -
P - 0.0350 -
S - 0.0350 -
Mn 0.5000 0.8000 -
Si 0.1700 0.3700 -
C 0.3300 0.4100 -
Cu - 0.2000 -
Ni - 0.2500 -
Cr - 0.2500 -
P - 0.0250 -
S - 0.0200 -
Mn 0.5000 0.8000 -
Si 0.1700 0.3700 -
C 0.3300 0.4100 -

Mechanical Properties of steel grade St55

Yield
Rp0.2 (MPa)		 Tensile
Rm (MPa)		 Impact
KV/Ku (J)		 Elongation
A (%)		 Reduction in cross section on fracture
Z (%)		 As-Heat-Treated Condition Brinell hardness (HBW)
472 (≥) 927 (≥) 43 11 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 221

Physical Properties of steel grade St55

Temperature
(°C)		 Modulus of elasticity
(GPa)		 Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)		 Specific thermal capacity
(J/kg·°C)		 Specific electrical resistivity
(Ω mm²/m)		 Density
(kg/dm³)		 Poisson’s coefficient, ν
42 - -     0.24 -  
219 179 - 14.3 322   -  
249 - 33 33.2   442 422

Heat Treatment of steel grade St55

Heat treated : 1566°C - 1857°C

Technological Curves of steel grade St55

Cross Reference Table (Equivalent Grade) of St55

Grade Standard Country Application
ASTM 5140
AISI 201
AISI 202
1.2767
17-4PH
AISI 1052
AISI 416Se
AISI 1330
AISI 205 Stainless Steel
AISI A10
AISI A2
AISI A3
AISI A4
1.0036
1.0037
SAE J403
UNS G10100
AMS 4924
ASTM A36
Electrode 100S-1
Available Suppliers
Jiangyou Longhai Special Steel Co.,Ltd.
Jiangyou Longhai Special Steel Co.,Ltd.

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

Rfq.: sales@longhaisteel.com
  • Do you supply this St55?
  • List your company on S&G now? Join
  • Non-paying users only
Sidebar RFQs Menu My Account
Top