Henan KUNFENG Co.,Ltd is a professional manufacturer,The diameter is from 80mm to 1200mm big and the length is from 1000mm to 12000mm . We have VD Furnance forging equipment, Rough turned and Heat treatment equipments. Our widely used in Large-scale locomotive, coal machine, petroleum machinery, shipbuilding, war industry, automobile and mould industries.
Details:
Standard: DIN 7527-6,EN 10204, EN 10228-3,EN 10250,N10083,SEW 550
Delivery Condition: Hot forged +Normalized+ Rough turned
Q/T:Quench+ Temper Annealing
Steelmaking Process: electric furnace + LF refining furnace + argon protection casting + VD vacuum degassing furnace ingot (bottom gating)
Diameter: 5mm-1200mm ,the forged round bar is from 80mm-1200mm:
Length: 1000-12000mm
Inspecting: SEP1921 CLASS C/C,D/D,E/E
Min qty: 1pcs
Tolerance for forged round bar: OD: 0/+3.0mm Length: 0/+20.0mm Straightness: 3mm/1000mm
Chemical analysis -% by mass*
Grade |
C |
Si |
Mn |
P |
S |
Cr |
Ni |
Cu |
max |
max |
max |
max. |
max. |
max |
max |
max |
|
W1A-8 1/2 |
0.85-0.94 |
0.35 |
0.40 |
0.035 |
0.030 |
0.20 |
0.25 |
0.30 |
Merchanical Propertites
Grade |
Hardness |
impression diameter |
quenching |
heat treatment regim |
W1A-8 1/2 |
≤192HB |
≥4.3 |
≥62HRC |
770-790℃ |
KUNFENG can offer W1A-8 1/2 forged and hot rolled round bar in carbon, alloy, stainless steel material, Our Company through quality, environment, occupational health and safety management system, etc. Products have passed the ISO9001:2000 quality management system certification, China CCS, South Korea KR, Italy RINA, Japan NK, France BV, the United States ABS, Russia RS, Lloyd's LR, Germany Lloyd's GL classification society certification.