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1.2581, DIN X30WCrV93, AISI H21

We can produce 1.2581, DIN X30WCrV93, AISI H21 stainless steel round rods, 1.2581, DIN X30WCrV93, AISI H21 forging,sheet,coil,and profiledstrip,Deformed steel,flat steel,mould,steel wire,have all specifications. With DuoNian production experience, strict control 1.2581, DIN X30WCrV93, AISI H21 chemical composition and 1.2581, DIN X30WCrV93, AISI H21 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.
We serve you with our honesty, integrity, and professionality.

1.2581, DIN X30WCrV93, AISI H21

Designation by Standards

Brand Name	LH No.	Mat. No.	DIN	EN	AISI
UTOP2	856	1.2581	X30WCrV93	X30WCrV9-3	H21

Chemical Composition (in weight %)

C	Si	Mn	Cr	Mo	Ni	V	W	Others
0.30	0.25	0.30	2.85	-	-	0.40	9.00	-

Description
This alloy is one of the hot work, tungsten containing steel/" target="_blank" class="keylink">tool steels. The tungsten content is beneficial for hot strength at red heat, although toughness is somewhat reduced.

Applications
Used for hot working dies and tooling such as die casting, extrusion and hot forming of parts. Pressure die casting tools, moulds for Cu and Cu-alloys. This grade is not used for water cooled tools.

Physical properties (avarage values) at ambient temperature
Modulus of elasticity [10³ x N/mm²]: 190-210
Density [g/cm³]: 7.80
Thermal conductivity [W/m.K]: 27.0
Electric resistivity [Ohm mm²/m]: 0.52
Specific heat capacity[J/g.K]: 0.46

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
11.5	12.0	12.2	12.5	12.9	13.0	13.5

Continuous Cooling Transformation (CCT) Diagram

Soft Annealing
Heat to 780-810^oC, cool slowly. This will produce a maximum Brinell hardness of 240.

Stress Relieving
Stress relieving to remove machining stresses should be carried out by heating to 650^oC, holding for one hour at heat, followed by air cooling. This operation is performed to reduce distortion during heat treatment.

Hardening
Harden from a temperature of 1080-1160^oC followed by air, oil or warm bath quenching. Hardness after quenching is 47-53 HRC.

Tempering
Tempering temperature: See the table bellow.

Tempering Temperature (^oC) vs. Hardness (HRC)

400^oC	500^oC	550^oC	600^oC	650^oC	700^oC
49	49	51	50	46	36

Tempering Diagram

Forging
Hot forming temperature: 1150-926^oC.

Machinability
The tungsten content makes H21 somewhat difficult to machine. As compared to the W group of water hardening low steel/" target="_blank" class="keylink">alloy steels rated at 100% for machinability the H21 would rate 55%.

Corrosion Resistance
This is a steel alloy and does not have corrosion resistance. It will rust unless given protective treatment.

Welding
This alloy may be welded. Consult the supplier for details.

Mechanical properties

1.2581, DIN X30WCrV93, AISI H21 Mechanical properties,Our production completely according to the 1.2581, DIN X30WCrV93, AISI H21 standards to meet the 1.2581, DIN X30WCrV93, AISI H21 mechanical performance, can also according to the customer request, to meet the requirements of customers of 1.2581, DIN X30WCrV93, AISI H21 mechanical properties.

Heat treatment

1.2581, DIN X30WCrV93, AISI H21 Heat treatment,Our production completely according to the 1.2581, DIN X30WCrV93, AISI H21 standards to meet the 1.2581, DIN X30WCrV93, AISI H21 Heat treatment, can also according to the customer request, to meet the requirements of customers of 1.2581, DIN X30WCrV93, AISI H21 Heat treatment.

Machining

1.2581, DIN X30WCrV93, AISI H21 Machining,Our production completely according to the 1.2581, DIN X30WCrV93, AISI H21 standards to meet the 1.2581, DIN X30WCrV93, AISI H21 Machining, can also according to the customer request, to meet the requirements of customers of 1.2581, DIN X30WCrV93, AISI H21 Machining.

Welding performance

1.2581, DIN X30WCrV93, AISI H21 Welding performance,Our production completely according to the 1.2581, DIN X30WCrV93, AISI H21 standards to meet the 1.2581, DIN X30WCrV93, AISI H21 Welding performance, can also according to the customer request, to meet the requirements of customers of 1.2581, DIN X30WCrV93, AISI H21 Welding performance.

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