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AISI 420(1.4021,X20Cr13,UNS S42000)Forged/Forging Stainless Steel Valve Stems

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Jiangsu Liangyi Co.,Limited

AISI 420(1.4021,X20Cr13,UNS S42000)Forged/Forging Stainless Steel Valve Stems

Place of Origin : CHINA

Brand Name : JSLY

Certification : API

Model Number : AISI 420

MOQ : 1PCS

Price : Depends on the sizes

Packaging Details : Plwooden Case

Delivery Time : 15 days

Payment Terms : T/T,L/C

Supply Ability : 10000 tons

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We are professional AISI AISI 420(1.4021,X20Cr13,UNS S42000) Forged/Forging Alloy Steel Valve Stems factory from china

Grade 420 stainless steel is a high-carbon steel with a minimum chromium content of 12%. Like any other stainless steel, grade 420 can also be hardened through heat treatment. It offers good ductility in its annealed state and excellent corrosion resistance properties when the metal is polished, surface grounded or hardened. This grade has the highest hardness - 50HRC - among all the stainless steel grades with 12% chromium.

Stainless steel grades that are similar to grade 420 stainless steels include martensitic steels such as the other versions of grade 420, having vanadium, sulphur and molybdenum in their composition, and the grade 440 series. Non-standard grade 420C has carbon content that is little higher than that of grade 420.

Martensitic stainless steels are ones with high hardness and high carbon content. These steels are generally fabricated using methods that require hardening and tempering treatments. The operating conditions of martensitic steels are affected by loss of material’s strength at high temperatures, and decrease in ductility at negative temperatures.

Key Properties

The following properties are mentioned for bar products in ASTM A276. The specification may not necessarily be similar for other forms, such as forgings and plate.

Composition

The compositional ranges of grade 420 stainless steels are given in following table:

Table 1 - Compositional ranges of grade 420 stainless steels

Grade

C

Mn

Si

P

S

Cr

420

min.

max.

0.15

-

-

1

-

1

-

0.040

-

0.03

12.0

14.0

Forging & Heat Treatment Equipment List

  • Name & Description

    Forging Handling Capacities

    Quantity

    3150 Tons Free Forging Hydraulic Press

    Max. Single Forging in 28 Tons

    1

    5000mm Diameter Rolling Forging Machine

    Max. Single Forging in 16 Tons

    1

    8 Tons Free Forging Hummer

    Max. Single Forging in 7.5 Tons

    1

    6 Tons Free Forging Hummer

    Max. Single Forging in 5.5 Tons

    1

    5 Tons Free Forging Hummer

    Max. Single Forging in 4.5 Tons

    1

    60 Tons Forging Handling Operator

    Max. Single Forging in 45 Tons

    1

    10 Tons Forging Handling Operator

    Max. Single Forging in 7.5 Tons

    1

    80 Tons Crane

    Max. Single Ingot in 80 Tons

    1

    60/30 Tons Crane

    Max. Single Ingot in 60 Tons

    1

    30/10 Tons Crane

    30/10 Tons

    4

    Trolley Heat Furnace

    5000*1500*1200 mm

    3

    Trolley Heat Furnace

    8000*2000*1600 mm

    3

    Trolley Heat Furnace

    6500*1500*1200 mm

    3

    Vertical Heat Furnace

    Ø2500*10000 mm

    2

    Total Forging Equipment Quantity

    24


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