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420S29 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 420S29

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B.S. 420S29

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This page is mainly introduced the 420S29 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 420S29,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Specification for wrought steels for mechanical and allied engineering purposes. Bright bars for general engineering purposes

Steel Garde:420S29
Type:Stainless Steels
Country:UK
Standard:B.S.

Standard Number:

ITEM	Standard Number	Descriptions
1	BS 1503	Specification for steel forgings for pressure purposes
2	BS 1554	Specification for stainless and heat-resisting steel round wire
3	BS 5770-4	Steel strip intended for the manufacture of springs. Specification for martensitic and austenitic stainless steel
4	BS 970-1	Specification for wrought steels for mechanical and allied engineering purposes. General inspection and testing procedures and specific requirements for carbon, carbon manganese, alloy and stainless steels
5	BS 970-3	Specification for wrought steels for mechanical and allied engineering purposes. Bright bars for general engineering purposes

Application:Specification for wrought steels for mechanical and allied engineering purposes. Bright bars for general engineering purposes

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	0.14	0.20
Si		1.00
Mn		1.00
P		0.04
S		0.03
Cr	11.50	13.50
Mo
Ni		1.00

Mechanical Properties

Tensile strength	404～291	σb/MPa
Yield Strength	048	σ 0.2 ≥/MPa
Elongation	59	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	656～864	-
HRC	30	-

Physical Properties

Thermal expansion	24-76	e-6/K
Thermal conductivity	69-32	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	0933-8904	째C
Density	5492-7051	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)
420S29 Stainless Steels	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