What is type 321 Hot Rolled Stainless Steel?

321 Stainless Steel Plate Data Sheet

321 Same grade from different country standard

06Cr18Ni11Ti 0Cr18Ni10Ti 1.4541 SUS321 S32168 S32100

Stainless Steel 321 Chemical Composition ASTM A240 :

Grade	C	Si	Mn	Cr	Ni	S	P	N	Ti
321	≤0.08	≤0.75	≤2.0	17.0～19.0	9.0～12.0	≤0.03	≤0.045	0.1	5X(C+N)Min～ 0.70Max

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321H Chemical Component ASTM A240 :

Grade	C	Si	Mn	Cr	Ni	S	P	N	Ti
321H	0.04～0.1	≤0.75	≤2.0	17.0～19.0	9.0～12.0	≤0.03	≤0.045	0.1	4X(C+N)Min～ 0.70Max

321 Mechanical & Physical Properties ASTM A240 :

Mechanical & Physical Properties	20°C	93°C	204°C	316°C	427°C	538°C	649°C	760°C	871°C
Coefficient of Thermal Expansion, µm/m⁰C	–	16.7	16.9	–	18	18.5	19.1	19.6	20
Thermal Conductivity/ kcal/(hr.m.°C)	–	13.1	14.4	–	17	18	–	–	–
Modulus of Elasticity, Dynamic/ x105 MPa	–	1.93	1.83	–	1.64	1.55	1.46	1.36	–
Ultimate Tensile Strength/ MPa	579.2	–	427.5	427.5	427.5	410.2	110.3	96.5	–
0.2% Yield Strength/ MPa	262	–	141.3	124.1	117.2	113.8	110.3	96.5	–