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1.4057 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 1.4057

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B.S. 1.4057

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This page is mainly introduced the 1.4057 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 1.4057,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Stainless steel bars for pressure purposes

Steel Garde:1.4057
Type:Stainless Steels
Country:UK
Standard:B.S.

Standard Number:

ITEM	Standard Number	Descriptions
1	BS EN 10088-1	Stainless steels - Part 1: List of stainless steels
2	BS EN 10088-3	Stainless steels - Part 3: Technical delivery conditions for semi-finished products, bars, rods, wire, sections and bright products of corrosion resisting steels for general purposes
3	BS EN 10088-5	Stainless steels - Part 5: Technical delivery conditions for bars, rods, wire, sections and bright products of corrosion resisting steels for construction purposes
4	BS EN 10250-4	Open die steel forgings for general engineering purposes - Part 4: Stainless steels
5	BS EN 10272	Stainless steel bars for pressure purposes

Metallographic Structure:Martensite
Application:Stainless steel bars for pressure purposes

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
X17CrNi16-2	DIN	Germany
1.4057	DIN	Germany
X17CrNi16-2	B.S.	UK
X17CrNi16-2	ISO	International

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	0.12	0.20
Si		1.00
Mn		1.50
P		0.04
S		0.015
Cr	15.00	17.00
Ni
Mo	1.50	2.50

Mechanical Properties

Tensile strength	550～809	σb/MPa
Yield Strength	282	σ 0.2 ≥/MPa
Elongation	39	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	561～598	-
HRC	30	-

Physical Properties

Thermal expansion	44-91	e-6/K
Thermal conductivity	20-31	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	8524-8206	째C
Density	1132-6000	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)
1.4057 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