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Q StE 340 N

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Germany DIN QStE340N Rectangular and square electric-welded precision steel tubes; Dimensions and technical conditions of delivery for tubes to be used in motor vehicle construction and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: QStE340N / Q StE 340 N
Category Grade Standard Region/Area Standard Content
Metals Q StE 340 N DIN 2395-3 Germany Rectangular and square electric-welded precision steel tubes; Dimensions and technical conditions of delivery for tubes to be used in motor vehicle construction

Chemical composition(mass fraction)(wt.%) of the Q StE 340 N

Element Min Max Similar
Si - 0.5300 -
S - 0.0350 -
P - 0.0350 -
Mn - 1.5600 -
C - 0.1800 -

Mechanical Properties of steel grade Q StE 340 N

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)
141 (≥) 138 (≥) 22 23 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 311

Physical Properties of steel grade Q StE 340 N

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
34 - -     0.13 -  
568 193 - 44.3 123   -  
442 - 42 34.2   413 441

Heat Treatment of steel grade Q StE 340 N

Heat treated : 1176°C - 1624°C

Technological Curves of steel grade Q StE 340 N

Cross Reference Table (Equivalent Grade) of Q StE 340 N

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
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