| Price: | US $ 400/Ton |
|---|---|
| Trade Terms: | FOB,CFR,EXW |
| Min Order: | 25/Ton |
| Pay Type: | L/C,T/T,D/P,Western Union,Paypal |
Hot rolled /Cold drawn spring sterel round bar
1.Main grade:SUP9 SUP9A SUP10 SUP11 SAE5160 38Si7 55Cr3 50CrV4 50CrVA 60CrMn 60Si2Mn
2.Chemical composition:
Grade | C | Si | Mn | Cr | P | S | Cr |
SUP9 | 0.52-0.60 | 0.15-0.35 | 0.65-0.95 | 0.65-0.95 | Max 0.030 | Max0.030 | -- |
SUP9A | 0.56-0.64 | 0.15-0.30 | 0.70-1.00 | 0.70-1.00 | Max 0.030 | Max0.030 | -- |
SUP10 | 0.47-0.55 | 0.15-0.35 | 0.65-0.95 | 0.70-1.00 | Max 0.030 | Max0.030 | -- |
SAE5160 | 0.56-0.64 | 0.15-0.35 | 0.75-1.00 | 0.70-0.90 | Max 0.030 | Max0.030 | -- |
38Si7 | 0.35-0.42 | 1.50-1.80 | 0.50-0.80 | -- | Max 0.030 | Max0.030 | -- |
55Cr3 | 0.52-0.59 | 0.25-0.50 | 0.70-1.00 | 0.70-1.00 | Max 0.030 | Max0.030 | -- |
50CrV4 | 0.47-0.55 | Max 0.40 | 0.70-1.10 | 0.90-1.20 | Max 0.030 | Max0.030 | 0.10-0.25 |
3.Main standard
DIN17221,DIN EN10132-4, ASTM A322,JIS G4801
4.Quality Control Process
1)Production Line
Blast Furnace Melton Iron → EAF(EBT/BOV) → LF → VD → Molten Steel → Continuous Casting → Hot Rolling(KOCKS) → Further Processing
(Cold Drawn/Peeling/Turning) (as customer's option)
2)Gas Contents:
Oxygen | Nitrogen | Hydrogen |
20ppm(max) | 90ppm(max) | 2ppm(max) |
3)Macrostructure
As per ASTM E 381 Plate,steel shae be better than C2,RTR2,S2
4)Microstructure
Microstructure of any sample from steel bars:shall be of uniform freeite and pearlite with good machinability.
Microstructure shall be of free from undesirable bandings of freote and pearlite.
Crain size of as per ASTM E112 shall be of 5~8.
5)Inclusion Rating:ASTM E45A
| A | B | C | D |
| MAX | MAX | MAX | MAX |
Thin | 2.0 | 1.5 | 0.5 | 0.5 |
Thick | 0.5 | 0.5 | 1.0 | 1.0 |
6)Our billet/steel bloom size
20-50mm: use 180*220mm steel billets
52-85mm: use 180*220mm steel billets
85-120mm: use 260*300mm steel billets
5.Avaiable size
Hot rolled round bars | 16mm to 120mm |
Cold drawn bars | 14mm to 60mm |
Diameter tolerance
DIA | 7-20 | 20-30 | 30-50 | 50-80 | 80-110 | 110-150 | 150-190 | 190-250 |
MM | +0.35 -0.35 | +0.40 -0.40 | +0.50 -0.50 | +0.70 -0.70 | +1.0 -1.0 | +1.3 -1.3 | +2.0 -2.0 | +2.5 -2.5 |
6.Supply condition Surface Treatment: Polishing,Peeling, Turning, Grinding, Milling, Drilling, Boring
Heat Treatment: Normalizing, Annealing, Quenching+ Tempering
7.Straightness: 3mm/m(max)
8.Packaging:seaworthy packaging by wire rod,every bunled is about 3-5MT,or as customer's request,each end of the bar has to be machine cut
9.our service
| Contact person | Angelina |
| Mobile | 18953401725 |
| Prod Model: | 51CrV4 5160 |
|---|---|
| Markets: | North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe |
| Steel: | Spring Steel Bar |
| Shapes: | Round, Square, Flat, Bar |
| Dia: | 16mm to 150mm |
| Delivery Condition: | Hot Rolled, Cold Drawn |
| Type: | Alloy Steel Bar |
| Standard: | BS |
| Technique: | Hot Rolled |
| Application: | Die Steel Bar |
| Surface Treatment: | Polished |
| Alloy: | Alloy |
| Special Use: | Mold Steel |
| Steel Grade: | Spring Steel Bar |
