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STS 321HTB

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Korea KS STS321HTB Stainless steel for boiler and heat exchanger tubes and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: STS321HTB / STS 321HTB
Category Grade Standard Region/Area Standard Content
Metals STS 321HTB KS D 3577 Korea Stainless steel for boiler and heat exchanger tubes

Chemical composition(mass fraction)(wt.%) of the STS 321HTB

Element Min Max Similar

Mechanical Properties of steel grade STS 321HTB

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)
782 (≥) 389 (≥) 11 43 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 133

Physical Properties of steel grade STS 321HTB

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 - -     0.11 -  
617 784 - 42.3 432   -  
829 - 32 34.2   342 113

Heat Treatment of steel grade STS 321HTB

Heat treated : 1566°C - 1981°C

Technological Curves of steel grade STS 321HTB

Cross Reference Table (Equivalent Grade) of STS 321HTB

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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Jiangyou Longhai Special Steel Co.,Ltd.

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