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A 803 Grade 29-4C chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of A 803 Grade 29-4C

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SAE A 803 Grade 29-4C

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This page is mainly introduced the A 803 Grade 29-4C chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of A 803 Grade 29-4C,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Welded Ferritic Stainless Steel Feedwater Heater Tubes

Steel Garde:A 803 Grade 29-4C
Type:Stainless Steels
Country:USA
Standard:SAE
Standard Number:

ITEM Standard Number Descriptions

1 A 803/A 803M (2012) Welded Ferritic Stainless Steel Feedwater Heater Tubes
Metallographic Structure:Precipitation-Hardening
Application:Welded Ferritic Stainless Steel Feedwater Heater Tubes

ITEM	Standard Number	Descriptions
1	A 803/A 803M (2012)	Welded Ferritic Stainless Steel Feedwater Heater Tubes

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
A 176 S44735	SAE	USA
A 240 S44735	SAE	USA
A 268 S44735	SAE	USA
S44735	AISI	USA
SA-240 S44735	AMS	USA
SA-268 S44735	AMS	USA
A 791 Grade 29-4C	SAE	USA
A 959 Type 29-4C	SAE	USA
SA-240 Type 29-4C	AMS	USA
SA-803 29-4C	AMS	USA

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C		0.03
Si		1.00
Mn		1.00
P		0.04
S
Ni		1.00
Cr	28.00	30.00
Al
Cu		0.15
Ti
Fe
N		0.045
Mo	3.60	4.20

Mechanical Properties

Tensile strength	715～811	σb/MPa
Yield Strength	847	σ 0.2 ≥/MPa
Elongation	28	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	537～337	-
HRC	30	-

Physical Properties

Thermal expansion	73-64	e-6/K
Thermal conductivity	37-72	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	9717-4053	째C
Density	0971-9783	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)
A 803 Grade 29-4C 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