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

• Customization: Available
• Type: Round
• Standard: DIN, BS
• Model NO.: 1.6311 20MnMoNi4-5
• Composition: Stainless Steel Scrap
• Technique: Hot Rolled
• Shape: Round, Flat, Square
• Surface Treatment: Polished
• Special Use: High-strength Steel Plate
• Application: Structural Steel Bar
• Size Range: 4-1000mm
• Similar Grades: 1.6311 20mnmoni4-5
• Quality Standard: En10204
• MOQ: 1t
• Transport Package: Seaworthy Packing
• Specification: 1.6311
• Trademark: FUSHUN
• Origin: , China
• HS Code: 7228600000
• Production Capacity: 500tons Per Month

Product Description

1.6311 20MnMoNi4-5 Special Steel for Boiler and Pressure Vessel
Similar Grade: 20MnMoNi4-5, 1.6311
Shape: Round, Flat, Square.
Size Range:

Frame Processing    Shape	Round	Flat		Square
		Thickness	Width
Rolling	12-130mm	4-150mm	100-900mm	-
Forging	50-1000mm	70-800mm	300-2000mm	70-1000mm

 
Steel-making Condition: EF, EF/EAF+LF+VD, EF/EAF+ESR
Delivery Condition:
Annealed , Quenched + Tempered

Surface Condition: 
Black, Grinded, Peeled, Rough turned, Polished

Features:
1.Competitive price
2.Immediate delivery
3.Premium quality
4.Reliable service
5.MOQ: 1 Ton
 
Packing details In seaworthy packing, as your requirement.
Delivery details within 30-50 days
 
Chemical Composition:
C 0.17-0.23
Mn 1.0-1.5
P 0.035max
S 0.035max
Si 0.4max
Cr 0.50max
Ni 0.40-0.80
Mo    0.45-0.65
 
 

HEAT TREATMENT:
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 water
Tempering: Heat to 610 to 690 °C. Holding 30 min time after temperature achievement over the whole section, cooling in still air
Back to Top
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.
 

Applications:
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.
 
 
 Contact Information:
FUSHUN SPECIAL STEEL CO., LTD. 
 
 
 
 
Website: fushunmetal.en.made-in-china.com