ISO ISO 21

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ISO 21 Profile
ISO 21 Chemical composition
ISO 21 Mechanical Properties
ISO 21 Physical Properties
ISO 21 Heat treatment
ISO 21 Size Availability
ISO 21 Relevant products

Profile

This page is mainly introduced the ISO 21 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of ISO 21,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
ISO standard thermal deformation of stainless steel

Steel Garde:ISO 21
Type:Special Alloy
Country:ISO
Standard:ISO
Application:ISO standard thermal deformation of stainless steel

Relevant products:

IncoloyA-286 / GH 2132

S32168/321/S32100/1-4541 Tube

S32169/321H/S32109/1-4940 Tube

G-X2CrNiMnMoNNb21-...

1.2581(H21, X30WC...

21CMoV5-7,1.7709,2...

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
Q215		China
Q215 B		China
UNS G10210	UNS	USA
ASTM 1021	ASTM	USA
H21	ASTM	USA
T20821	UNS	USA
Stellite 21
X210Cr12	DIN	Germany
1.2101	DIN	Germany
1.2103	DIN	Germany
1.2108	DIN	Germany
1.2109	DIN	Germany
1.2127	DIN	Germany
1.2129	DIN	Germany
21MnCr5	DIN	Germany
1.2162	DIN	Germany
1.2210	DIN	Germany
X210CrW12	DIN	Germany
1.2721	DIN	Germany
X210CrCoW12	DIN	Germany
X21Cr13	DIN	Germany
21CrMo10	DIN	Germany
SKS21	JIS	Japan
SKD10	JIS	Japan
BH21		UK
BH21		UK
BH21A		UK
BH21A		UK
BT21		UK
BT21		UK
X210CrW12-1	AFNOR	France
X210CrW12-1	AFNOR	France
X21CrNi17	AFNOR	France
X21CrNi17	AFNOR	France
SS14:2140	SS	Sweden
STS21	KS	Korea
STS21	KS	Korea
35CrMo7	ISO	ISO
35CrMo7	ISO	ISO
W-Nr 1.4521	DIN	Germany
1.4821	DIN	Germany
X15CrNiSi25-21(20)	DIN	Germany
X8(12)CrNi25-21	DIN	Germany
X10NiCrAITi32-21(20)	DIN	Germany
X60CrMnMoVNbN21-10	DIN	Germany
X53CrMnNiNbN21-9	DIN	Germany
X53CrMnNiN21-9	DIN	Germany
X70CrMnNiN21-6	DIN	Germany
X50CrMnNiNbN21-9	DIN	Germany
X8NiCrAlTi32-21	DIN	Germany

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	763～743	σb/MPa
Yield Strength	753	σ 0.2 ≥/MPa
Elongation	23	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	604～325	-
HRC	30	-

Physical Properties

Thermal expansion	13-28	e-6/K
Thermal conductivity	90-50	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	6411-5637	째C
Density	5231-5762	kg/m³
Resistivity	0.50-0.60	Ohm.mm²/m

Heat Treatment Regime

Annealing	Quenching	Tempering	Normalizing	Q & T
√	√	√	√	√

Size Availability

Steel Grade	Specification	Processing range(mm)
ISO 21 Special Alloy	Round Bar and Hollow Bar	Φ1 to Φ2000
	Square and Flat Steel	Φ10 to Φ100
	Plate and Sheet	0.08-800(Thickness)10-1500(Width)Length
	Tube or Pipe	OD:Φ4-410; WT:1-35 mm; Lenght:10-12000
	Coil and Strip Steel	THK:0.1mm Width:1500mm
	Forged	Ring/Cylindrical/Disk