• 20mnmoni4-5 1.6311 Special Steel for Boiler and Pressure Vessel
  • 20mnmoni4-5 1.6311 Special Steel for Boiler and Pressure Vessel
  • 20mnmoni4-5 1.6311 Special Steel for Boiler and Pressure Vessel
  • 20mnmoni4-5 1.6311 Special Steel for Boiler and Pressure Vessel
  • 20mnmoni4-5 1.6311 Special Steel for Boiler and Pressure Vessel
  • 20mnmoni4-5 1.6311 Special Steel for Boiler and Pressure Vessel

20mnmoni4-5 1.6311 Special Steel for Boiler and Pressure Vessel

Type: Flat
Standard: DIN
Composition: Ferrous Steel Scrap
Technique: Hot Forged,or Hot Rolled
Shape: Round,Flat or Square
Surface Treatment: Polished,Grinded or Peeled
Customization:
Manufacturer/Factory, Trading Company

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Basic Info.

Model NO.
20MnMoNi4-5 1.6311
Special Use
Alloy Structural Steel
Application
Structural Steel Bar
Transport Package
Seaworth Packing
Specification
Round Bar: Dia12~420mm Flat Bar: 2~420 X 30~1500mm
Trademark
CHENGQUAN
Origin
Huangshi, Hubei
HS Code
7228100000
Production Capacity
5000tons/Year

Product Description

20mnmoni4-5 1.6311 Special Steel for Boiler and Pressure Vessel20mnmoni4-5 1.6311 Special Steel for Boiler and Pressure Vessel20mnmoni4-5 1.6311 Special Steel for Boiler and Pressure VesselApplications• Boiler installations in accordance with Technical Rules TRD 101, EN 12952 etc. for temperatures up to 375 °C.
• Pressure vessel installations in accordance with the AD 2000-Merkblätter series W and HP for temperatures of - 10 °C to 375 °C.All Grades Comparison
DIN EN
1.6311 20MnMoNi4-5
Quality StandardEN 10250 Open steel die forgings for general engineering purposes. Alloy special steelsChemical Composition(%)
C Mn Si P S Cr Ni Mo
0.17-0.23 1.00-1.50 0.40 max 0.035 max 0.035 max 0.50 max 0.40-0.80 0.45-0.60
Mechanical Properties(T=20°C if not differently stated)
Process Diameter(mm) Tensile Strength Rm (Mpa) Yield Strength Rp0.2 (Mpa) Elongation A5 (%) Impact Value Kv (J) Room Temperature
QUENCHED AND TEMPERED 40 max 590-750 470 min 18 min 35 min
QUENCHED AND TEMPERED 40-60 590-730 460 min 18 min 35 min
QUENCHED AND TEMPERED 60-100 570-710 450 min 18 min 35 min
QUENCHED AND TEMPERED 100-160 570-710 440 min 18 min 35 min
QUENCHED AND TEMPERED 160-330 550 min 390 min 17 min 39 min
HEAT TREATMENT:
  1. Stress Relieving: Heat to 580 - 620°C. Generally the maximum stress relieving time shall be restricted to 150 min. If it exceeds 90 min or in case of repeated heat treatment the lower range of recommended temperatures shall apply.Austenitizing + Quenchingg: Heat to 870 to 940 °C. After temperature achievement over the whole section cooling in waterTempering: Heat to 610 to 690 °C. Holding 30 min time after temperature achievement over the whole section, cooling in still air
Forming properties and weldability:1.6311 Special Steel can be hot or cold formed and can be welded and flame cut according to the general procedures. The guidelines
according to EN 1011 and VdTÜV-material data sheet 440/1 shall be observed. For the fabrication of pressure vessels in accordance with AD 2000 Merkblatt in the context of PED qualified welding consumables have to be applied.Mill′s test certificate:EN 10204/3.1 with all relevant data reg. chem. composition, mech. properties and results of testing.
 20mnmoni4-5 1.6311 Special Steel for Boiler and Pressure Vessel

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Manufacturer/Factory, Trading Company
Registered Capital
500000 RMB
Plant Area
>2000 square meters