What is the maximum hardness after heat treatment?

After annealing, the maximum hardness is 235 HB. After tempering, the Rockwell C hardness is 50 MAX.

Does H21 steel support water cooling?

Unlike higher tungsten grades, H-21 may be cooled by continuous flow of water if the design of the die permits.

DIN 1.2581 H21 Hot Work Tool Steel

Name: DIN 1.2581 H21 Hot Work Tool Steel
Brand: Laiwu Xincheng Metal Co., Ltd.
SKU: 1900780952

Shandong, ChinaLaiwu Xincheng Metal Co., Ltd.

US$1,000.00

1 Ton

Sample price:US$0.00/piece.Request sample

Product profile

Customization

Available

Type

Alloy Steel Bar

Standard

AISI, ASTM, GB, JIS, DIN, BS

Model NO.

DIN 1.2581 H21 Hot Work Tool Steel

Technique

Hot Rolled

Application

Tool Steel Bar, Die Steel Bar

Surface Treatment

Polished

Alloy

Special Use

Mold Steel, Hot Work Steel

Products

Tool Steel Bar

Grade

H21 SKD5 1.2581 3Cr2W8V

Ut Standard

Sep 1921 C/C

Transport Package

Sea Worthy

Trademark

Laiwu Xincheng

Origin

China

Production Capacity

3000tons/Month

Key features

High Tungsten Content: 9.5% tungsten provides excellent resistance to softening at high service temperatures.

Wide Size Range: Round bars from 8mm to 500mm diameter; plates from 2mm to 300mm thickness.

Custom Cutting: Round bars can be sawn to specific lengths; rectangular pieces cut to exact sizes.

Precision Ground: Ground tool steel bars available with tight tolerances for quality precision finish.

Versatile Applications: Ideal for hot forging, blanking dies, die casting, extrusion, and forming dies.

Multiple Forms: Supply includes round bars, flat bars, plates, sheets, hexagonal bars, and square blocks.

Global Standards: Meets AISI, ASTM, GB, JIS, DIN, and BS standards with equivalent grades listed.

Water Cooling Option: Can be cooled by continuous water flow if die design permits, unlike higher tungsten grades.

Company profile

Laiwu Xincheng Metal Co., Ltd.

Shandong, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2018-11-27Nearest Port: Qingdao,China, Shanghai,ChinaAverage Response Time: >24hTerms of Payment: LC, T/T, D/P, etc.International Commercial Terms(Incoterms): FOB, CFR, CIF, FCA, EXW

AI-Powered supplier vetting

SummaryLaiwu Xincheng Metal Co., Ltd. is a China-based limited company in Shandong, identified as both a trading company and manufacturer/factory. It produces and exports steel products including round bars, square bars, slotted angle bars, cold-drawn bars, heat-treated bars, and threaded rods. The supplier reports multiple management-system certifications and operates more than 10 production lines, with stated output for several product categories. Its export activity is substantial by share of sales, began in 2018, and covers multiple global regions. Evidence also indicates a small R&D and quality-control workforce, a stated market-oriented innovation approach, and several buyer-linked trade records. However, the provided information does not sufficiently establish after-sales service processes, financial credibility, or proven customization performance.

Supplier typeThe supplier is explicitly identified as both a Trading Company and Manufacturer/Factory. Its business description states that it integrates research, design, development, manufacturing, and sales, indicating a combined manufacturing and trading model.

CertificationsThe supplier lists QHSE, OHSAS/OHSMS 18001, ISO 9000, ISO 14001, ISO 9001, and ASME certifications. These stated certifications provide explicit evidence of formal quality, environmental, occupational-safety, and sector-related management credentials.

Production capacityThe supplier reports operating more than 10 production lines and provides stated output for slotted angle bars, Q&T steel round bars, cold-drawn steel bars, and threaded rods. These explicit production-line and output records support meaningful manufacturing capacity.

Client casesThe supplier reports exports to more than 30 countries and regions, and trade records link it with buyers including METALLIED and FIT TIGHT FASTENERS LIMITED for alloy, cold-drawn, and hot-rolled steel bars. These records provide evidence of international customer activity, although the number of documented transactions is limited in the slices.

Product Q&A

Q:What is the tungsten content in H21 steel?

H21 steel contains 9.5% tungsten, which imparts good resistance to softening at service temperatures while maintaining adequate toughness.

Q:What forms of H21 steel are available?

We supply round bars, steel flat bars, plates, steel sheets, hexagonal steel bars, and steel square blocks.

Q:Can the steel be cut to specific sizes?

Yes, AISI H21 round bars can be sawn to required lengths, and rectangular pieces can be sawn from flat bar or plate to specific sizes.

Q:What are the main applications of H21 hot work tool steel?

It is useful for hot forging and blanking dies, punches for nuts and bolts, die casting dies for copper alloys, forming dies, shear blades, and extrusion dies.

Q:What are the available surface finishes?

Surface finishes include Black, Rough Machined, Turned, or as per given requirements.