Product Description

Tungsten hot-work steels are of different types, namely, H21 to H26 types. These steels have similar characteristics to that of high-speed steels. The primary alloying elements in tungsten hot-work steels include tungsten, chromium, carbon, and vanadium. They are resistant to distortion when they are air-hardened, and have higher hardening temperature when compared to chromium hot-work steels. Breakage of the tungsten hot-work steels can be reduced if they are preheated to operating temperature before use. Thermal shock resistance and toughness of these steels can be improved by reducing the carbon content.

1: AISI H21 steel introduction

H21 steel is a hot sham W-Cr-Mo Tungsten hot take steps steel partner ASTM A681-1999 Steel Grade suitable. H21 Special Steel China Supplier and factory SAE Special Steel Supply H21 Tool steel in Round bar, Plate, Flat bar, Square, Forging Ring and others any swap. And have the funds for choking, sawing, milled, machining paperwork.

2: AISI H21 Steel equivalent

Country	China	Japan	Germany	USA	UK
Standard	GB/T 1299	JIS G4404	DIN EN ISO4957	ASTM A681	BS 4659
Grade	3Cr2W8V	SKD5	1.2581	H21

3: AISI H21 steel chemical composition

Grade	C	Si	Mn	P	S	Cr	W	V
H21/T20821	0.26~0.36	0.15~0.50	0.15~0.40	0.030 Max	0.030≤	3.00~3.75	8.50~10.0	0.30~0.60
1.2581/ X30WCrV9-3	0.25~0.35	0.15~0.30	0.20~0.40	0.035 Max	0.035 ≤	2.50~2.80	8.00~9.00	0.30~0.40
3Cr2W8V	0.30~0.40	≤0.40	≤0.40	0.030 Max	0.030 ≤	2.20~2.70	7.50~9.00	0.20~0.50
SKD5	0.25~0.35	0.10~0.40	0.15~0.45	0.030 Max	0.020 ≤	2.50~3.20	8.50~9.50	0.30~0.50

4: AISI H21 steel mechanical properties

Grade	Tensile strength	Yield strength	Elongation	Reduction	Impact Value	Hardness
AISI H21

Delivery Condition

-EAF+(ESR) or EAF+LF+VD+(ESR)

-HOT rolled or Forged, Annealed

-Hardness≤235HB

-Surface Finish: Black, Rough Machined, Peeled, Turned or as per given requirements

-UT 100% passed

-Cutting service provided

-Third Party inspection is acceptable (SGS, BV etc.)

Applications

H21 Hot work steels are Suitable for the manufacture of complex shapes, impact load, the working temperature is not too high, mold sheet product is suitable for forging press mold, concave and convex die, die casting, hot metal cutting knife, etc. the mass production with aluminum alloy die-casting mould.

Product Process:
Electric-Furnace Smelting(EF)→Ladle Furnace(LF)→Vacuum Degassing(VD)→ Argon protected ingot →Multidirectional Forging → (Concave forging →)Normalizing+Hydrogen Diffusion Annealing → Ultrasonic Flaw Detection →Queching+Tempering Prehardened
High Mold Steel Material 1.2581 Tool and Die Steel Mould Steel H21 SKD5 Round Bar Steel

5.Feature:
1. Material uniformity, excellent cutting, and polishing.
2. High toughness and high plasticity.
3. High wear resistance at high and low temperatures.
4.Excellent overall hardening.
5.Good high-temperature strength and heat resistance Fatigue.

High Mold Steel Material 1.2581 Tool and Die Steel Mould Steel H21 SKD5 Round Bar Steel

Our Service
UT TEST
For Guarantee Product Quality.
A. Sand Hold Detection;
B. Hardness Detection.
High Mold Steel Material 1.2581 Tool and Die Steel Mould Steel H21 SKD5 Round Bar Steel

MACHINE MILLING SERVICE
For Customer a Various of Requirement
A. Steel plates: Cutting by bandsaw machine, milling, heat treatment, etc
B. Round bars: Cutting by bandsaw machine, peeling, grinding and turned, heat treatment, etc
High Mold Steel Material 1.2581 Tool and Die Steel Mould Steel H21 SKD5 Round Bar Steel

Finish Product:
High Mold Steel Material 1.2581 Tool and Die Steel Mould Steel H21 SKD5 Round Bar Steel

10.Delivery Time
1) For abundant stock, 7-15 days.
2) For customized products, 15-30 days.

Loading Details:
High Mold Steel Material 1.2581 Tool and Die Steel Mould Steel H21 SKD5 Round Bar Steel

11.FAQ:

Q1: What do you do for the control of the quality?

A1: Before loading into the container, our products will all be inspected by ultrasonic inspection. Quality Grade conforms to SEP 1921-84 E/e, D/d, C/c as per customer's request.

Q2:: What are your hot-selling products?

A2: D2/1.2379, H13/1.2344, CR12MOV, DC53, CR8, abundant stock for both plates and rounds. Competitive prices and short lead-time.

Q3: Can we visit your company and factory?
A3: Yes, warmly welcome! We can book the hotel for you before you come to China and arrange our driver to our airport to pick you up when you come.

Q4: Are you a manufacturer or merely a trader?
A4: We are a group of companies and owned manufacturer bases and trading companies. We specialized in plastic mold steel, hot work mold steel, cold work mold steel, alloy steel for mechanical, high-speed steel, etc. All materials are of high quality and competitive price.

HOR SALE GRADE:

High Mold Steel Material 1.2581 Tool and Die Steel Mould Steel H21 SKD5 Round Bar Steel

Mould steel die steel

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1.2581 Hot Work Tool Steel Plate Flat Bar

Product Description