Steel Round Bar 31CrMoV09 Q+T 1.8519 Alloy Rod 30-500mm Hot Rolled and Forged Nitriding Steel Rod
Main Grade we can supply for forged steel bars
| Steel series | Representative steel type |
| Carbon Steel series | AISI 1020,1045,A36,S355JR,S355JO |
| Petroleum machinery series | AISI4150,AISI4140,AISI4130, |
| 30CrMo,4145H |
| Tool mold series | 1.2714,5CrMnMo,5CrNiMoV, |
| 1.2738,1.2311,1.2312 1.2714 H13 |
| Bearing series | 52100,GCr15,SUJ2 |
| Marine series | 4140,42CrMo,SCM440, |
| 709M40 |
| Car series | SAE8620,20CrNiMo, |
| SNCM220 |
| Heavy-duty transmission series | 40CrNiMo,SNCM439, |
| SAE4340,EN24 |
| Mining machinery series | 655M13,826M40, |
| 25CrMo |
| Wind power gear series | 18CrNiMo7-6, 17CrNiMo6, 1.6582,1.6587,SAE8620 |
| Wind power spindle series | 34CrNiMo6,817M40 |
| Nitriding series | 20MnCr5,38CrMoAl, |
| 31CrMoV9 |
| Pressure vessel series | 15CrMo,13CrMo4-4 |
| Metallurgical roll series | 21CrMoV511,W1.7225, |
| EN19,709M40 |
31CrMoV9 Hot rolled and Forged steel round is under JIS G4053-2003 standard. It is a king of pinion steel. 31CrMoV9features good performance for heat treatment. The cutting process is good after do the normalizing treatment. Good quenching, can do quenching depth. 31CrMoV9 have the good processability under high temperature.
31CrMoV9 Hot rolled and Forged steel round bar Common size:
Common diameter for hot rolled steel bar: 16mm to 80mm
Common diameter for forged steel bar: 80mm to 1200mm
31CrMoV9 Package: standard seaworthy packing or as customer required
31CrMoV9 Hot rolled and Forged steel round bar Tolerance:
Diameter tolerance: 0~5mm, Length tolerance:0~20mm
straightness: 3mm/1000mm
31CrMoV9 Hot rolled and Forged steel round bar Delivery condition:
Hot forged +Normalized+rough turned Q/T:Quench+ Temper Annealing
EAF ARC FURNACE + LF REFINING+ VD + FORGING (DOUBLE) + FIXED LENGTH + SEP1921C/c TESTING
31CrMoV9 Hot rolled and Forged steel round barChemical composition
Grade | C | Si | Mn | P | S | Cr | Ni | V | Mo |
| 31CrMoV9 | 0,27 ~ 0,34 | 0.4 | 0.4~0.7 | ≤0.030 | ≤0.035 | 2.3~2.7 | ~ | ~ | 0.15~0.25 |
31CrMoV9 Hot rolled and Forged steel round bar Mechanical property
| Tensile strength | Yield strength | Elongation | Impact value | Grade |
| σb (MPa) Min | σb (MPa) Min | δ5 (%)Min | Akv (J)Min |
| 1100~1300 | 800 | 10 | 30 | 31CrMoV9 |
Forged Steel Size we can supply:
| Forged Steel Round Bar | Φ85mm~1200mm |
| Forged Square steel Bar: | 150×150-800×800mm |
| Forged Flat Blocks: | (150mm-800mm)*(200mm-800mm) |
| Forged Shaft and Forged Ring | According to Customer's drawing |
Inspecting:
UT according toSEP1921 C/c, D/d, E/e, A388 or GB/T 6402,
Spectral Tested, Microstructure Tested,Hardness Test,Macrostructure Test,
.Delivery Condition:
Forged+black surface
Forged+rough machined
Forged+rough turned+QT/annealed/normalized
Surface condition: Black; Peeled; Polished; Machined; Grinded; Turned; Milled
7.Manufacture:EAF+LF+VD(Annealed,normalized,Quenched+Tempered,peeled,rough turned).
8.Heat Treatment: Normalized / Annealed / Quenched / tempered (optional)
