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1.4028, DIN X30Cr13, AISI 420F

We can produce 1.4028, DIN X30Cr13, AISI 420F stainless steel round rods, 1.4028, DIN X30Cr13, AISI 420F forging,sheet,coil,and profiledstrip,Deformed steel,flat steel,mould,steel wire,have all specifications. With DuoNian production experience, strict control 1.4028, DIN X30Cr13, AISI 420F chemical composition and 1.4028, DIN X30Cr13, AISI 420F mechanical properties.From casting, forging, steel to hot and cold rolling process, heat treatment, etc, we have the control of professional engineers. We have advanced precision machining equipment, according to the requirements of users machining. in order to achieve the most satisfied with the user requirements.

Production specification

Round bar steel: 1mm to 3500mm
Square-shape steel: 1mm to 4000mm
Plate steel:0.1mm to 4000mm
Width: 10mm to 2500mm
Lenth: We can supply any lenth based on the customer's requirement.
Forging: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes
Tubings: OD: φ6-1800mm, with wall thickness ranging from 1-35 mm.
Finished goods condition: hot forging/hot rolling + annealing/normalizing + tempering/quenching + tempering/any conditions based on the customer's requirement
Surface conditions: scaled (hot working finish)/ground/rough machining/fine machining/based on the customer's requirement
Furnaces for metallurgical processing: electrode arc + LF/VD/VOD/ESR/Vacuum consumable electrode.
Ultrasonic inspection: 100% ultrasonic inspection for any inperfections or based on the customer's requirementExcellent service for all kinds of industries,with advantages of technologies, equipment and price.
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1.4028, DIN X30Cr13, AISI 420F

Designation by Standards

Brand Name	LH No.	Mat. No.	DIN	EN	AISI
PK4	906	1.4028	X30Cr13	X30Cr13	420F

Chemical Composition (in weight %)

C	Si	Mn	Cr	Mo	Ni	V	W	Others
0.31	max. 1.00	max. 1.50	13.00	-	-	-	-	-

Description
This steel is a general purpose free machining version of 420 stainless, a heat treatable chromium steel. PK4 displays the best corrosion resistance in hardened and slightly tempered (around 150^oC) condition. A smoothed (industrially polished) and residue-free surface is necessary in order to achieve optimum resistance of this chromium steel grade.

Applications
Dental and surgical instruments, cutlery, pump shafts, gears pinions and cams, steel balls, and various hand tools. Not recommended for vessels containing high pressure gases or liquids or for plastic molds where high surface finishes are required.

Physical properties (avarage values) at ambient temperature
Modulus of elasticity [10³ x N/mm²]: 215, 205 (200^oC), 190 (400^oC)
Density [g/cm³]: 7.73
Thermal conductivity [W/m.K]: 30.0
Electric resistivity [Ohm mm²/m]: 0.65
Specific heat capacity[J/g.K]: 0.46
Magnetisable: Yes

Coefficient of Linear Thermal Expansion 10^-6 ^oC^-1

20-100^oC	20-200^oC	20-300^oC	20-400^oC	20-500^oC	20-600^oC	20-700^oC
11.7	11.9	11.9	12.1	12.1	12.6	12.6

Continuous Cooling Transformation (CCT) Diagram

Soft Annealing
Heat to 745-820^oC, cool slowly in air. This will produce a maximum Brinell hardness of 225. Structure is ferrite with spherical carbides.

Hardening
Harden from a temperature of 950-1050^oC followed by oil or air quenching. Hardness after quenching is 52-58 HRC.

Tempering
Tempering temperature: 625-724^oC, Structure is transformation structure with ferrite.

Mechanical properties at at ambient temperature
Condition: Annealed, quenched and tempered at 850^oC, diameter d<=160 mm
0.2% Proof Stress: 650 N/mm²
Tensile strength: 850-100 N/mm²
Elongation (A5): 10% (Longit.)

Tempering Diagram

Click the image to enlarge the diagram.

Forging
Hot forming temperature: 1100-800^oC, slow cooling.

Machinability
Good machining characteristics due to the addition of sulfur. High speeds and feeds combined with short brittle chips.

Corrosion Resistance
PK4 is resistant to the atmosphere, fresh water, dilute acids and alkalis and fruit and vegetable juices.

Welding
Not commonly welded due to its air hardening characteristics. Welding may be performed after preheating to 149-204^oC with post weld tempering at temperature for 2 hours . Filler metal should be AWS E/ER420.

Cold working
PK4 will withstand only minor cold work. Radical forming operations will result in cracking.

Mechanical properties

1.4028, DIN X30Cr13, AISI 420F Mechanical properties,Our production completely according to the 1.4028, DIN X30Cr13, AISI 420F standards to meet the 1.4028, DIN X30Cr13, AISI 420F mechanical performance, can also according to the customer request, to meet the requirements of customers of 1.4028, DIN X30Cr13, AISI 420F mechanical properties.

Heat treatment

1.4028, DIN X30Cr13, AISI 420F Heat treatment,Our production completely according to the 1.4028, DIN X30Cr13, AISI 420F standards to meet the 1.4028, DIN X30Cr13, AISI 420F Heat treatment, can also according to the customer request, to meet the requirements of customers of 1.4028, DIN X30Cr13, AISI 420F Heat treatment.

Machining

1.4028, DIN X30Cr13, AISI 420F Machining,Our production completely according to the 1.4028, DIN X30Cr13, AISI 420F standards to meet the 1.4028, DIN X30Cr13, AISI 420F Machining, can also according to the customer request, to meet the requirements of customers of 1.4028, DIN X30Cr13, AISI 420F Machining.

Welding performance

1.4028, DIN X30Cr13, AISI 420F Welding performance,Our production completely according to the 1.4028, DIN X30Cr13, AISI 420F standards to meet the 1.4028, DIN X30Cr13, AISI 420F Welding performance, can also according to the customer request, to meet the requirements of customers of 1.4028, DIN X30Cr13, AISI 420F Welding performance.

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