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Otai Special Steel supply ASTM standard H13 tool steel mainly round bar and steel plate. DIN 1.2344 and ASTM H13 are equivalent material. This article we introduce H13 hardness.

H13 is typical chromium-molybdenum tool steel widely used in hot work and cold work tooling applications. H13 usually are delivered after annealing. Annealing must be performed after hot working and before re-hardening. H13 Harness after annealing is maxed 235 HB.

H-13 Tool Steel is a 5% chromium hot work tool steel designed for applications that require extreme toughness combined with good red-hardness.

It should be noted that, although H13 was designed as hot work steel, it has solved many cold work applications where extra toughness could be gained with some sacrifice of wear resistance.

H13 heat treatment and H13 hardness regulations as follow

H13 Annealing hardness: 235 HB

H13 Cold drawn hardness: 262 HB

Preheat temperature: 788°C

Quenching temperature | Salt bath: 996°C

Quenching temperature | Controlled atmosphere furnace: 1010°C

Austenitiz-ing time:  5 – 15 minutes

Quench Medium: Air

Tempering temperature: 552°C

H13 Tempering hardness: Min 52 HRC

OTAI Special Steel supply high-quality H13 tool steel, compliance with US ASTM | AISI standards. All our H13 steel in stock is annealing status.

H13 steel equivalent – H13 is a chromium, molybdenum, vanadium hot work tool steel which has high hardenability and excellent toughness, this is due to the fact that the material contains molybdenum and vanadium which are strengthening agents. Let’s introduce H13 steel and H13 steel equivalent in this article.

The chromium content of H13 resists softening when at high temperatures. H13 has a good combination of shock and abrasion resistance and good red hardness.  This material can withstand rapid cooling and it resists premature heat checking. H13 has good machinability, weldability, and good ductility.

H13 steel equivalent

H13 equivalent steel Chemical Composition

We offer a wide range of steel products in a wide variety of dimensions and executions, according to the common international specifications or customized. Machining and heat treatment are available. Also, we advise you in choosing the right materials.

h13 tolerance – OTAI Special Steel Co., Ltd. is H13 tool steel supplier and stockist. Now we have H13 tool steel round bar and plate for sale. We also can help you to machine H13 steel round bar and plate.

What is h13 tolerance?

H13 tool steel is a chromium, molybdenum, vanadium hot work tool steel which is characterized by high hardenability and excellent toughness. The molybdenum and vanadium act as strengthening agents. The chromium content assists H-13 to resist softening when used at high temperatures. H-13 offers an excellent combination of shock and abrasion resistance and possesses good red hardness. It is capable of withstanding rapid cooling and resists premature heat checking. H-13 has good machinability, good weldability, good ductility, and can be formed by conventional means.

h13 tolerance :

Rounds +.015/+.035″ oversize

AISI H13 Steel Supply Range:

ASTM H13 Steel Round Bar: Diameter 5mm – 400mm
AISI H13 Steel Plate: Thickness 10 –500mm x Width 200– 1400mm
SAE H13 Steel Block: 210mm x 500-810mm
Surface Finish: Black, Rough Machined, Turned or as per given requirements.

Form of Supply

we can supply the round bar, flat bar, plate and square block. round bar can be sawn to your required lengths as one-offs or multiple cut pieces. Steel plate and sheet rectangular pieces can be sawn from flat bar, sheet or plate to your specific sizes. Ground tool steel bar can be supplied, providing a quality precision finished bar to tight tolerances.

Welcome inquiry of AISI H13 tool steel, we are a professional and reliable supplier for H13 tool steel materials.

8620 VS 4140 – 8620 steel and 4140 steel are both widely used steel in the industry. Let’s compare the differences between 8620 steel and 4140 steel.

What is AISI 8620 & AISI 4140 steel :

8620: AISI 8000 Series Steel; Ferrous Metal; Low Alloy Steel; Low Carbon Steel; Typical uses are: Arbors, Bearings, Bushings, Cam Shafts, Differential Pinions, Guide Pins, King Pins, Pistons Pins, Splined Shafts, Ratchets, Sleeves, etc.

4140: AISI 4140 alloy steel is chromium, molybdenum, manganese containing low alloy steel. It has high fatigue strength, abrasion and impact resistance, toughness, and torsional strength.

8620 VS 4140 – Chemical of 4140 & 8620：

8620 VS 4140 – MECHANICAL PROPERTIES

8620 MECHANICAL PROPERTIES：Typical Mechanical Properties – Water Quenched at 830oC and Tempered as Indicated

4140 MECHANICAL PROPERTIES – The following values are average and may be considered as representative of this grade:

8620 VS 4140 – Application ：

4140 ：Applications for 4140 include drill collars, kelly bars, bolts, subs, couplings, reamer bodies, rotary table shafting, valves, zinc-die casting dies, hydraulic machinery shafts, precision lead screws and winch shafts, among others.

8620 ：this material is ideal for a wide variety of applications. Gears, pinions, oil pump piston rods and liners, spline shafts, piston pins, cams, jigs, plastic molds, oil tool slips, jaws, gauges,etc

Welcome to contact us to know more about 8620 steel and 4340 steel and get a quote.

What’s the chemical composition of 8620? Now let us show the 8620 chemical composition.
8620 / 8620H is a low Nickel Chromium Molybdenum case hardening (carburizing) steel. Can Be supplied in “H” condition with controlled hardenability. Strict analytical limits provide controlled response from heat to heat, making it an ideal selection for production case hardened parts, where consistency in heat treatment is required. Typical core strength up to Rc41 Carburised, hardened and tempered.

SAE 8620 Steel Specification and Relevant Standards

ASTM 8620 Steels Equilvalents 8620 chemical composition

APPLICATIONS

This grade finds wide application in the automotive industry and for ring gears, pinions, racks and worms, helical gears, bearing races, pins and high tensile chains.

Otai special supply a range of 8620 material, including 8620 Round Bar, Steel Plate, Square Bar and 8620 tubes.

8620 Round Bar: diameter 8mm – 3000mm
8620 Steel Plate: thickness 10mm – 1500mm x width 200mm – 3000mm
8620 Square Bar: 20mm – 500mm
8620 tubes are also available against your detailed request.

8620 Material description

AISI 8620 is a type of alloy steel, 8620 Material is a case-hardening steel containing nickel, chromium, and molybdenum as alloying elements.
These ingredient elements must be within certain weight percentages to create the 8620 alloys. It takes advantages of good strength and toughness properties and has a higher core strength than grades 8615 and 8617. The equivalent Chinese material of AISI 8620 alloy steel is 20CrNiMo, which is a common material grade in steel forging.
The alloy shows good strength and toughness properties. This alloy may be used in the production of medium-strength parts such as forged camshafts, fasteners, and gears. Extensive surface carving is not ideal for 8620, however, it responds well to polishing.

8620 Material Chemical Composition

Heat Treatment of 8620 Material

1.Annealing: For optimum machinability, an as-forged structure is normally sufficient for this grade of alloy steel. If this proves not to be the case then an iso-anneal from around 1650ºF (900ºC) to 1225ºF (660ºC) will improve machinability.

2.Normalizing: 1675ºF (910ºC) and air cool. This is another method of improving machinability in this grade; normalizing might also be used prior to case hardening.

3.Hardening: The alloy will be austenitized at around 1525ºF (830ºC) and oil or water quenched depending upon section size and intricacy.

4.Tempering: To desired hardness, using temperatures based on past experience, following water or oil quench.

5.Machinability: This grade of alloy is readily machined following suitable cooling from forging or subsequent heat treatment.

6.Weldability: This steel may be welded by normal fusion methods, but prior to carburizing or hardening and tempering.

Application of AISI 8620 Material

AISI 8620 steel forging material is used extensively by all industry sectors for light to medium stressed components and shafts requiring high surface wear resistance with reasonable core strength and impact properties.

Typical applications are: Arbors, Bearings, Bushings, Cam Shafts, Differential Pinions, Guide Pins, King Pins, Pistons Pins, Gears, Splined Shafts, Ratchets, Sleeves and other applications where it is helpful to have a steel that can be readily machined and carburized to controlled case depths.

8620 application – 8620 steel is widely used, mainly used to manufacture machine parts such as gears, crankshafts, gear rings, etc.

AISI 8620 steel forging material is used extensively by all industry sectors for light to medium stressed components and shafts requiring high surface wear resistance with reasonable core strength and impact properties.

Why 8620 steel is preferred for these machine parts？

When the 8620 alloy is properly carburized — heated to a set temperature and then exposed to an agent containing carbon, a process which adds an extra layer of carbon to the outside of the steel, thereby making it stronger — it is used to make such machine parts as gears, crankshafts, and gear rings. Carburized 8620 alloy is strong and durable, which is why it is preferred for these parts.

AISI 8620 is an alloy carburizing steel when thermally treated develops a hard outer case with a soft ductile core. Carefully controlled proportions of chromium, nickel, and molybdenum are responsible for the extensive use as carburizing alloy steel, with valuable features including extreme surface hardenability and good internal strength. Has minimum distortion and growth characteristics. 8620 has good machinability and responds well to polishing.

8620 Application

Typical applications are Arbors, Bearings, Bushings, Cam Shafts, Differential Pinions, Guide Pins, King Pins, Pistons Pins, Gears, Splined Shafts, Ratchets, Sleeves and other applications where it is helpful to have a steel that can be readily machined and carburized to controlled case depths.
8620 applications include gears, pinions, cams, cranks, clutch shafts, shafting, axles, tie bars, collets, bushings, heavy-duty pins, bolting, springs, hand tools, die cases, and a multitude of machinery parts and components.

8620 hardness is an important indicator in the mechanical properties of 8620 steel. Understanding the 8620 hardness range that can help us to better understand the properties of 8620 steel and the application fields. The following is the details about 8620 hardness.

8620 is a low alloy case hardening steel which is supplied to American standard SAE 8620 and AISI 8620. 8620 can be carburized, which will achieve a tough core with a hard wear-resistant case. 8620 provides a combination of toughness and wear resistance. 8620 is supplied in either the as-rolled or annealed condition for subsequent case hardening.

So what is 8620 mechanical properties and 8620 hardness?

The most widely used alloy case-hardening steel, which may be carburized and hardened to produce a hard wear-resistant case combined with the core strength of the order of 125,000 psi (862 N/mm2). Uniform case depth, hardness and wear properties with minimum distortion are characteristics of this grade. The steel may also be used, not carburized, in a variety of general applications where a ’20’ carbon alloy is desirable.

The mechanical properties of AISI 8620 alloy steel:                            

8620 Delivery status

Delivery in normalizing, annealing or high tempering or without heat treatment according to your requirements.

Otai special steel is an experienced 8620 steel supplier and has a number of 8620 on sale, the main specifications are as follows:

8620 on sale

Supply Range of AISI 8620 Tool Steel

8620 Steel Round Bar: diameter 1mm – 400mm

AISI 8620 Steel Plate: thickness 1 –500mm x width 200– 1400mm

Steel Block: 210mm x 500-810mm

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

Chemical composition

8620 on sale，We will offer the best sale prices and quality steel. Welcome and contact us.

Email: Jack@otaisteel.com

Tel:  +86-769- 23190193

Fax:  +86-769-88705839

AISI 8620 Steel is a low alloy nickel, chromium, molybdenum case hardening steel, generally supplied in the as-rolled condition with a maximum hardness HB 255max. SAE steel 8620 offers high external strength and good internal strength, making it highly wear-resistant. Let’s introduce 8620 equivalent steel in this article.

AISI 8620 is American Standard steel, its performance and application keep accordance with Germany, Japan, China, British steel industry standard. We would like to introduce such material in this article.

8620 equivalent:

AISI 8620 equivalent steel of Germany standard grade is DIN 21NiCrMo2 and W-Nr 1.6523. Chemical composition comparison as below table

AISI 8620 substitute steel of China standard grade is GB 20CrNiMo. Chemical compostion comparison as below table

AISI 8620 replacement of Japan standard grade is JIS SNCM220. Chemical composition comparison as below table

OTAI  8620 Steel is from top 3 China steel mill, our supply range as follow

8620 Round Bar: diameter 8mm – 3000mm
8620 Steel Plate: thickness 10mm – 1500mm x width 200mm – 3000mm
8620 Square Bar: 20mm – 500mm
8620 tubes are also available against your detailed request.
Surface Finish: Black, Rough Machined, Turned or as per given requirements.