Follow us:-

20CrMo alloy steel bar

  • 72 Views
  • 11-May-2024

is one of our main products, and it has the high hardenability , temper brittleness , very good weldability , can be a good machinability and cold plastic strain. More informational about , please see the following:

description:
Standard: GB / T 3077-1988, JIS, AISI, ASTM, GB, DIN, EN
Material: 201,202,304,304L,316,316L,321,310S,410,410S,430,347H,2Cr13,etc
Length: 3000mm-6000mm or as customer's requirement
Surface: Black/Bright/Polished
Technique: Hot rolled/Cold drawn/Forge

20CrMo alloy chemical composition:

C

Si

Mn

S

P

Cr

Ni

Cu

Mo

0.17~0.24

0.17~0.37

0.40~0.70

≤0.035

≤0.035

0.80~1.10

≤0.030

≤0.030

0.15~0.25

20CrMo alloy steel mechanical properties:
Tensile strength σb (MPa): ≥ 885 (90) Yield strength σs (MPa): ≥ 685 (70)
Elongation δ5 (%): ≥ 12 Reduction of area ψ (%): ≥ 50
Impact energy Akv (J): ≥ 78 Impact toughness values ​​αkv (J/cm2): ≥ 98 (10)
Hardness : ≤ 197HB Sample size: Sample size is 15mm rough

Heat treatment and microstructure specifications : Heat treatment specifications: quenching 880 ℃, water, oil cooling ; tempering 500 ℃, water, oil cooling .

20CrMo heat treatment : 20CrMo material belonging to a low-carbon alloy steel for carburizing ; treatment specifications : quenching 880 ℃, water, oil cooling ; tempering 500 ℃, water, oil cooling .

20CrMo alloy characteristics and scope of application: high hardenability , temper brittleness , very good weldability , cold cracking tendency to form small, can be a good machinability and cold plastic strain . Usually in the quenched state or carburizing used for the manufacture of infiltration in non-corrosive media and working temperatures below 250 ℃, pressure pipe and various fasteners containing nitrogen and hydrogen mixture of media work , more advanced carbon parts, such as gears , shafts , etc.

Related Post

KR AH36 shipbuilding steel plate

Comparing common strength shipbuilding steel grades KR AH36 shipbuilding steel plate owned higher yield strength and tensile strength.Shipbuilding steel plate KR AH36 shipbuilding steel plate is the Hull structural steel,with it's good toughness properti

ASTM A131 FH36 Steel Work / Steel Structure / Steel Machining Parts

The ASTM A131 AH36 Steel machining parts particular heavy plates and ultra-heavy plate’s substrate can be manufactured in large batch with the width more than 3200mm and the length more than 13000mm.

ASTM A131 DH40 Steel Work / Steel Structure / Steel Machining Parts

ASTM A131 DH40 Steel machining parts is mainly used in shipbuilding like deck, offshore etc. ASTM A131 DH40 Steel machining parts Surface: Clean, Shot blasting and painting according to customer requirement.

GBT9711 L485/X70 PSL1 LSAW Pipeline

GBT9711 L485/X70 PSL1 LSAW Pipeline is divided into seamless steel pipe and welded steel pipe, L485/X70 PSL1 LSAW Pipeline is mainly used for natural gas, petroleum, chemical, electric power, metallurgy thermodynamics field, water supply project, steam heating, hydropower station and long pipeline transportation project, its surface can be painted black varnish, antirust oil, hot dip galvanized, cold galvanized, FBE, 3PE, and so on.