Size Available:

Plate:   Thickness 40-350mm

           Width100m-1000mm

          Length   2m—6m

          Round: Dia. 60---800mm

Listing Description  

1. EAF-LF-VD-ESR Forged

2. ISO 9001 certificated

3. Factory direct sales steady supply

4. Higher resistance to heat checking

Detailed Description   
  

Characteristics:       

Round P20+S is with additional sulphur, usually supplied in a quenched and tempered condition. Polishable, better machinability compared to 1.2311

Applications:

Round P20+S is for making plastic moulds, frames for plastic pressure dies, hydroforming tools

steel grade: P20+S/1.2312/ 40CrMnMoS86

specification: Round bars 60-800mm  flats 40-350x100-1000mm

Delivery condition: EAF+LF+VD+(ESR),forged, annealed, UT tested, peeled or machined

Tolerance: 0/+2mm

UT grade: SEP1921,Group3,  class D/d

Payment item: T/T,L/C

Equivalent Grades: 

GB: 40CrMnMoS86

DIN: 1.2312

AISI: P20+S

Chemical Composition (for reference only):

C:0.35-0.45  Mn:1.40-1.60  Si:0.30-0.50  Cr:1.80-2.00  Mo:0.15-0.25  P: ≤0.03  S:0.05-0.10

Quality assurance:

We are the ISO 9001:2000 authentication enterprises and we can provide the enterprise's quality written guarantee for all the exported products

Surface condition: Black surface/ turning / milling / peeling / polishing.

Hardness: Annealed HBS220 max

Weight:20ft: GW: 17.5T; (5.69mX2.13mX2.18m,)

40ft: GW: 22T; (11.8mX2.13mX2.18m)

Heat treatment of Round P20+Stment of Round P20+S                                 

Soft Annealing: Heat to 710-740°C, cool slowly in furnace. This will produce a maximum Brinell hardness of 230.

Stress Relieving: Stress relieving to remove machining stresses should be carried out by heating to approx.650°C, holding for 1-2 hours at heat, followed by air cooling. This operation is performed to reduce distortion during heat treatment.

Hardening: Harden from a temperature of 830-880oC followed by oil or quenching or warm bath quenching 180-220°C. Hardness after quenching is 51 HRC.

Our Advantages:

1. Good performance in checking heat

2. A large size range for customers' option

3. Nice advantage in terms of resisting thermal shocking

4. ESR to make sure better quality when delivery

5. Black & annealed, peeled or turned optional

6. Manufacturer with advanced technology and good quality control

7. Welcome to visit our large factory at any time