Skip to Content

About: Jack

Recent Posts by Jack

8620 Structural Steel bar

8620 Structural Steel bar

8620 Structural Steel is a high-quality Quenched and Tempered Alloy Structural steel. It belongs to the high-quality low carbon, Low alloy chromium, molybdenum, nickel case hardening steel. Oil Quenched & Tempered Hardness is 28-34 HRc. AISI 8620 steel Annealing delivery hardness less than 250HB.

AISI 8620 Alloy structural steel properties is a Nickel chromium molybdenum alloy steel specification. 8620 With a lower carbon content range, AISI 8620 alloy steel has good weldability.  AISI 8620 Steel is equivalent to Din 21NiCrMo2 | W-Nr 1.6523, GB 20CrNiMo, BS 805M20, NF 20NCD2,JIS SNCM220 Steel. Most applications can replace each other. (8620 Structural Steel)

Related Specifications ASTM A29/A29M DIN EN 10083/3 JIS G4053 GB GB/T 3077

8620 steel data PDF files Down


Form of Supply

Otai provides the grinding, milling, polishing, turning, drilling, and other machining services as your required tolerances and size.

AISI 8620 Structural Steel barChina suppliers, wholesale, distributors, and stockholder–Dongguan Otai Special Steel Co Ltd. We Otai is a manufacturer and has a large quantity of stock in our warehouse. We supply in Round bar, gauge plate steel, pipe, tube, rod, square, hexagonal, blanks, plate, sheet, precision ground flat bar. Including precision ground bar stock, hollow bar, we provide black surface and black surface alloy steel material.

0 0 Continue Reading →

8620 Structural Steel-8620 Alloy Steel For Gear

8620 Structural Steel is a high-quality Quenched and Tempered Alloy Structural steel. It belongs to the high-quality low carbon, Low alloy chromium, molybdenum, nickel case hardening steel. Oil Quenched & Tempered Hardness is 28-34 HRc. AISI 8620 steel Annealing delivery hardness less than 250HB.

AISI 8620 Alloy structural steel properties is a Nickel chromium molybdenum alloy steel specification. 8620 With a lower carbon content range, AISI 8620 alloy steel has good weldability.  AISI 8620 Steel is equivalent to Din 21NiCrMo2 | W-Nr 1.6523, GB 20CrNiMo, BS 805M20, NF 20NCD2,JIS SNCM220 Steel. Most applications can replace each other. (8620 Structural Steel)

Related Specifications ASTM A29/A29M DIN EN 10083/3 JIS G4053 GB GB/T 3077

8620 steel data PDF files Down


Form of Supply

8620 steel, we can supply the round bar, steel flat bar, plate, hexagonal steel bar, and steel square block. AISI 8620 steel Round bar can be sawn to your required lengths as one-offs or multiple cut pieces. 8620 alloy steel Rectangular pieces can be sawn from flat bar or plate to your specific sizes. Ground tool steel bar can be supplied, providing a quality precision finished bar to tight tolerances.

0 0 Continue Reading →

8620 Structural Steel supplier-8620 Hot Rolled Steel Bar- Rounds & Square Shapes

8620 Structural Steel supplier

8620 Steel is a high-quality Quenched and Tempered Alloy Structural steel. It belongs to the high-quality low carbon, Low alloy chromium, molybdenum, nickel case hardening steel. Oil Quenched & Tempered Hardness is 28-34 HRc. AISI 8620 steel Annealing delivery hardness less than 250HB.

AISI 8620 Alloy structural steel properties is a Nickel chromium molybdenum alloy steel specification. 8620 With a lower carbon content range, AISI 8620 alloy steel has good weldability.  AISI 8620 Steel is equivalent to Din 21NiCrMo2 | W-Nr 1.6523, GB 20CrNiMo, BS 805M20, NF 20NCD2,JIS SNCM220 Steel. Most applications can replace each other. (8620 Structural Steel supplier)

Related Specifications ASTM A29/A29M DIN EN 10083/3 JIS G4053 GB GB/T 3077

8620 steel data PDF files Down


Form of Supply

8620 steel, we can supply the round bar, steel flat bar, plate, hexagonal steel bar, and steel square block. AISI 8620 steel Round bar can be sawn to your required lengths as one-offs or multiple cut pieces. 8620 alloy steel Rectangular pieces can be sawn from flat bar or plate to your specific sizes. Ground tool steel bar can be supplied, providing a quality precision finished bar to tight tolerances.

0 0 Continue Reading →

8620 alloy Steel supplier-8620 Hot Rolled Steel Bar Supplier

8620 alloy Steel supplier

8620 Steel is a high-quality Quenched and Tempered Alloy Structural steel. It belongs to the high-quality low carbon, Low alloy chromium, molybdenum, nickel case hardening steel. Oil Quenched & Tempered Hardness is 28-34 HRc. AISI 8620 steel Annealing delivery hardness less than 250HB.

AISI 8620 Alloy structural steel properties is a Nickel chromium molybdenum alloy steel specification. 8620 With a lower carbon content range, AISI 8620 alloy steel has good weldability.  AISI 8620 Steel is equivalent to Din 21NiCrMo2 | W-Nr 1.6523, GB 20CrNiMo, BS 805M20, NF 20NCD2,JIS SNCM220 Steel. Most applications can replace each other. (8620 alloy Steel supplier)

Related Specifications ASTM A29/A29M DIN EN 10083/3 JIS G4053 GB GB/T 3077

8620 steel data PDF files Down


Form of Supply

8620 steel, we can supply the round bar, steel flat bar, plate, hexagonal steel bar, and steel square block. AISI 8620 steel Round bar can be sawn to your required lengths as one-offs or multiple cut pieces. 8620 alloy steel Rectangular pieces can be sawn from flat bar or plate to your specific sizes. Ground tool steel bar can be supplied, providing a quality precision finished bar to tight tolerances.

0 0 Continue Reading →

8620 Steel supplier-8620 Steel Bar Suppliers – 8620 Alloy Steel Rods

8620 Steel supplier

8620 Steel is a high-quality Quenched and Tempered Alloy Structural steel. It belongs to the high-quality low carbon, Low alloy chromium, molybdenum, nickel case hardening steel. Oil Quenched & Tempered Hardness is 28-34 HRc. AISI 8620 steel Annealing delivery hardness less than 250HB.

AISI 8620 Alloy structural steel properties is a Nickel chromium molybdenum alloy steel specification. 8620 With a lower carbon content range, AISI 8620 alloy steel has good weldability.  AISI 8620 Steel is equivalent to Din 21NiCrMo2 | W-Nr 1.6523, GB 20CrNiMo, BS 805M20, NF 20NCD2,JIS SNCM220 Steel. Most applications can replace each other.(8620 Steel supplier)

Related Specifications ASTM A29/A29M DIN EN 10083/3 JIS G4053 GB GB/T 3077

8620 steel data PDF files Down


Form of Supply

8620 steel, we can supply the round bar, steel flat bar, plate, hexagonal steel bar, and steel square block. AISI 8620 steel Round bar can be sawn to your required lengths as one-offs or multiple cut pieces. 8620 alloy steel Rectangular pieces can be sawn from flat bar or plate to your specific sizes. Ground tool steel bar can be supplied, providing a quality precision finished bar to tight tolerances.

0 0 Continue Reading →

8620 Steel: It is the structural steel with the hardenability guaranteed by American standard

8620 Steel is a high-quality Quenched and Tempered Alloy Structural steel. It belongs to the high-quality low carbon, Low alloy chromium, molybdenum, nickel case hardening steel. Oil Quenched & Tempered Hardness is 28-34 HRc. AISI 8620 steel Annealing delivery hardness less than 250HB.

AISI 8620 Alloy structural steel properties is a Nickel chromium molybdenum alloy steel specification. 8620 With a lower carbon content range, AISI 8620 alloy steel has good weldability.  AISI 8620 Steel is equivalent to Din 21NiCrMo2 | W-Nr 1.6523, GB 20CrNiMo, BS 805M20, NF 20NCD2,JIS SNCM220 Steel. Most applications can replace each other.

Related Specifications ASTM A29/A29M DIN EN 10083/3 JIS G4053 GB GB/T 3077

8620 steel data PDF files Down


Form of Supply

8620 steel, we can supply the round bar, steel flat bar, plate, hexagonal steel bar, and steel square block. AISI 8620 steel Round bar can be sawn to your required lengths as one-offs or multiple cut pieces. 8620 alloy steel Rectangular pieces can be sawn from flat bar or plate to your specific sizes. Ground tool steel bar can be supplied, providing a quality precision finished bar to tight tolerances.

0 0 Continue Reading →

8620 alloy Steel is a high-quality Quenched and Tempered Alloy Structural steel

8620 alloy Steel is a high-quality Quenched and Tempered Alloy Structural steel. It belongs to the high-quality low carbon, Low alloy chromium, molybdenum, nickel case hardening steel. Oil Quenched & Tempered Hardness is 28-34 HRc. AISI 8620 steel Annealing delivery hardness less than 250HB.

AISI 8620 Alloy structural steel properties is a Nickel chromium molybdenum alloy steel specification. 8620 With a lower carbon content range, AISI 8620 alloy steel has good weldability.  AISI 8620 Steel is equivalent to Din 21NiCrMo2 | W-Nr 1.6523, GB 20CrNiMo, BS 805M20, NF 20NCD2,JIS SNCM220 Steel. Most applications can replace each other.

Related Specifications ASTM A29/A29M DIN EN 10083/3 JIS G4053 GB GB/T 3077

8620 steel data PDF files Down


Form of Supply

8620 Alloy steel, we can supply the round bar, steel flat bar, plate, hexagonal steel bar, and steel square block. AISI 8620 steel Round bar can be sawn to your required lengths as one-offs or multiple cut pieces. 8620 alloy steel Rectangular pieces can be sawn from flat bar or plate to your specific sizes. Ground tool steel bar can be supplied, providing a quality precision finished bar to tight tolerances.

0 0 Continue Reading →

A2 steel flat supplier | A2 Tool Steel Flat Bar & Plate

A2 steel flat supplier

A2 steel flat China suppliers, wholesale, distributors, and stockholder–Dongguan Otai Special Steel Co Ltd. We Otai is a manufacturer and has a large quantity of stock in our warehouse. We supply in Round bar, gauge plate steel, pipe, tube, rod, square, hexagonal, blanks, plate, sheet, precision ground flat bar. Including precision ground bar stock, hollow bar, we provide black surface and black surface alloy steel material.

A2 steel/1.2363 is a German Cold work tool alloy steel material grade.

A-2 steel is an air hardening alloy chromium-molybdenum-Vanadium die steel. As cold work steel, its grade contains 5% chromium. In applications that require greater size stability, A2 steel is preferable to O1 tool steel.

Advantage of A2 steel in repair welding operation: since the preheating and post-heating temperature is lower than SKD11, repair welding operation is easier.

A typical application such as blanking die, the molding dies, blanking dies, stamping die, stamping die, die, extrusion die, boxing, shear knife blade, instrumentation, knurling tools, volume, head, and machine parts. (A2 steel flat supplier)

Otai provides the grinding, milling, polishing, turning, drilling, and other machining services as your required tolerances and size.

Otai does not act as a material handler. We possess proprietary technology and continuously iterate. We undertake every order to end and solve customers’ problems without any hesitation on responsibility. We are welcome to your kind inquiry.

0 0 Continue Reading →

4140 steel sheet-4140 Quenched & Tempered Steel Plate

4140 steel sheet: We keep a daily inventory of 1500 tons

4140 steel sheet China suppliers, wholesale, distributors, and stockholder–Dongguan Otai Special Steel Co Ltd. We Otai is a manufacturer and has a large quantity of stock in our warehouse. We supply in Round bar, gauge plate steel, pipe, tube, rod, square, hexagonal, blanks, plate, sheet, precision ground flat bar. Including precision ground bar stock, hollow bar, we provide black surface and black surface alloy steel material.

1)  4140 steel belongs to the alloy structural steel. After Quenching & Tempering, its hardness is 28-34 HRC.

2) 4140 steel used for bending machine molds.

3) Besides, it can be used to under 2000m deep well of oil drill pipe joint and the fishing tool.

4) Also, it can be used for engineering structural parts, like high tensile shafts, gears, pinions, and spindles.

4140 hr plate: Its heat treatment has good strength and good comprehensive mechanical properties.

The common stainless steel’s chromium content is higher than 12.5%. So it has anti-rust performance. From the analysis of the composition, 4140 steel also has chromium. But its chromium content is only 0.8%-1.1%, which is far lower than the standard for rust prevention. Therefore, 4140 steel is not stainless steel. Please pay attention to its rust prevention when using it.

But 4140 steel can be used to make gears. Because lubricating oil is often used when gears are running. The lubricating oil can protect the gear from rust while protecting the normal operation of the gear.

Otai provides the grinding, milling, polishing, turning, drilling, and other machining services as your required tolerances and size. (4140 steel sheet: We keep a daily inventory of 1500 tons)

Otai does not act as a material handler. We possess proprietary technology and continuously iterate. We undertake every order to end and solve customers’ problems without any hesitation on responsibility. We are welcome to your kind inquiry.

0 0 Continue Reading →

A2 steel flat- Custom Cut to Size Options-A2 Tool Steel Supplier

A2 steel flat

A2 steel flat China suppliers, wholesale, distributors, and stockholder–Dongguan Otai Special Steel Co Ltd. We Otai is a manufacturer and has a large quantity of stock in our warehouse. We supply in Round bar, gauge plate steel, pipe, tube, rod, square, hexagonal, blanks, plate, sheet, precision ground flat bar. Including precision ground bar stock, hollow bar, we provide black surface and black surface alloy steel material.

A2 steel/1.2363 is a German Cold work tool alloy steel material grade.

A-2 steel is an air hardening alloy chromium-molybdenum-Vanadium die steel. As cold work steel, its grade contains 5% chromium. In applications that require greater size stability, A2 steel is preferable to O1 tool steel.

Advantage of A2 steel in repair welding operation: since the preheating and post-heating temperature is lower than SKD11, repair welding operation is easier.

A typical application such as blanking die, the molding dies, blanking dies, stamping die, stamping die, die, extrusion die, boxing, shear knife blade, instrumentation, knurling tools, volume, head, and machine parts. (A2 steel flat)

Otai provides the grinding, milling, polishing, turning, drilling, and other machining services as your required tolerances and size.

Otai does not act as a material handler. We possess proprietary technology and continuously iterate. We undertake every order to end and solve customers’ problems without any hesitation on responsibility. We are welcome to your kind inquiry.

0 0 Continue Reading →

A2 steel flat bar– A2 Precision Ground Flat Stock

A2 steel flat bar

A2 steel flat bar China suppliers, wholesale, distributors, and stockholder–Dongguan Otai Special Steel Co Ltd. We Otai is a manufacturer and has a large quantity of stock in our warehouse. We supply in Round bar, gauge plate steel, pipe, tube, rod, square, hexagonal, blanks, plate, sheet, precision ground flat bar. Including precision ground bar stock, hollow bar, we provide black surface and black surface alloy steel material.

A2 steel/1.2363 is a German Cold work tool alloy steel material grade.

A-2 steel is an air hardening alloy chromium-molybdenum-Vanadium die steel. As cold work steel, its grade contains 5% chromium. In applications that require greater size stability, A2 steel is preferable to O1 tool steel.

Advantage of A2 steel in repair welding operation: since the preheating and post-heating temperature is lower than SKD11, repair welding operation is easier.

A typical application such as blanking die, the molding dies, blanking dies, stamping die, stamping die, die, extrusion die, boxing, shear knife blade, instrumentation, knurling tools, volume, head, and machine parts. (A2 steel flat bar)

Otai provides the grinding, milling, polishing, turning, drilling, and other machining services as your required tolerances and size.

Otai does not act as a material handler. We possess proprietary technology and continuously iterate. We undertake every order to end and solve customers’ problems without any hesitation on responsibility. We are welcome to your kind inquiry.

0 0 Continue Reading →

8620 steel and 4140 steel: Which one we should choose to use?

8620 steel and 4140 steel: For the different material comparisons, which one we should choose to use?

8620 steel China suppliers, wholesale, distributors, and stockholder–Dongguan Otai Special Steel Co Ltd. We Otai is a manufacturer and has a large quantity of stock in our warehouse. We supply in Round bar, gauge plate steel, pipe, tube, rod, square, hexagonal, blanks, plate, sheet, precision ground flat bar. Including precision ground bar stock, hollow bar, we provide black surface and black surface alloy steel material.

8620 is the structural steel with the hardenability guaranteed by American standard, and the standard is as follows: ASTM A29/ A29m-2015 (hot forged and cold processed carbon steel and alloy steel bar).

It has high hardenability, no tempering brittleness, good weldability, little tendency to form a cold crack, good machinability, and cold strain plasticity. Generally used in quenching and tempering or carburizing state, used for manufacturing small and medium-sized automobile, tractor engine and gear in the transmission system, oil drilling and metallurgy open mine cone bit teeth and teeth body, manufacturing steam turbine gear whole rotor internal combustion engine connecting rod valve section forgings. At the same time, the surface of 8620 steel after carburizing heat treatment has relatively high hardness, wear-resistance, and contact fatigue strength, while the core retains good toughness and can withstand high impact load. It can be used as automobile bearing, spindle, gear, mechanical parts, and other impact-resistant, wear-resistant workpieces.

4140 steel, the steel has good workability, machining deformation of small, anti-fatigue performance is quite good.

On the hardenability of steel, 4140 heat treatment has good strength and good comprehensive mechanical properties, good manufacturability, high yield. The highest temperature is 427 degrees Celsius. 4140 strength, high hardenability, and good toughness, quenching deformation of small, high temperature creep rupture strength, and high. It is used for manufacturing forgings with higher strength and larger tempering cross-section than 35CrMo steel. Such as big gear for locomotive traction, supercharger drive gear, rear axle, connecting rod, and spring clamp with the great load. Also can be used for drilling pipe joint and fishing tool of oil deep well below 2000m and can be used for bending machine mold, etc.(8620 steel and 4140 steel)

Otai provides the grinding, milling, polishing, turning, drilling, and other machining services as your required tolerances and size.

Otai does not act as a material handler. We possess proprietary technology and continuously iterates. We undertake every order to end and solve customer’s problem without any hesitation on responsibility. We are welcome to your kind inquiry.

0 0 Continue Reading →

 

Recent Comments by Jack

    No comments by Jack