EN30B
Qilu
Product Description
BS EN30B 1.6747 835M30 Hot Rolled Steel Round Bar
1: EN30B Steel Introduction
EN30B is a 4% nickel air/oil hardening steel. It achieves a good through hardness with high strength and toughness. It is capable of taking a good polish and is widely used as drill bit material
EN30B steel Stock in warehouse
2: EN30B Quality Standard
BS970 1955-ENG WROUGHTSTEELSINTHEFORMOFBARS,BILLETSANDFORGINGSUPTO6IN.RULINGSECTIONFORAU.pdf
3: EN30B Steel Equivalent
| Country | Germany | British |
| Standard | EN10250 | BS970 |
| Grade | 30CrNiMo16-6/1.6747 | EN30B/835M30 |
4: EN30B Steel Chemical Composition
| Grade | C | Si | Mn | P | S | Cr | Mo | Ni |
| 1.6747 | 0.26-0.33 | 0.4 | 0.5-0.8 | 0.025 | 0.025 | 1.2-1.5 | 0.3-0.6 | 3.3-4.3 |
| EN30B | 0.28-0.33 | 0.1-0.35 | 0.4-0.6 | 0.025 | 0.015 | 1.1-1.24 | 0.2-0.4 | 4-4.3 |
5: EN30B Steel Mechanical Properties
The mechanical properties mainly include tensile strength, yield strength, elongation, area or reduction, hardness, impact value, non-metalic inclusion etc. Different heat treatment, the mechanical properties will be different, such as normalized, tempered, QT. If you want to know the properties, kindly contact the salesman.
6: EN30B Steel Overviews
| Size | Round | Dia 6-1000mm |
| Plate/Flat/Block | Thickness 6mm-500mm | |
| Width 20mm-1000mm | ||
| Heat treatment | Normalized ; Annealed ; Quenched ; Tempered | |
| Surface condition | Black; Peeled; Polished; Machined; Grinded; Turned; Milled | |
| Delivery condition | Forged; Hot rolled; Cold drawn | |
| Test | Tensile strength, Yield strength, elongation, area of reduction, impact value, hardness, grain size, ultrasonic test, US inspection, magnetic particle testing, etc. | |
| Payment terms | T/T;L/C;/Money gram/ Paypal | |
| Trade terms | FOB; CIF; C&F; etc.. | |
| Delivery time | 30-45 days | |
7: EN30B Steel Application
EN30B alloy steels are used for Down-hole tools, heavy duty construction tools, rock drilling bit bodies, highly stressed gears and transmission components, heavy duty shafts and rolls.
8: EN30B Steel Tolerance
Diameter(mm) | Tolerance | ||
Forged Steel Round Bar | 80-600 | Black Surface:0~+5 | Rough Machined or Turned:0~+3 |
650-1200 | Black Surface:0~+15 | Rough Machined or Turned:0~+3 | |
Hot Rolled Steel Round Bar | 16-310 | Black Surface:0~+1 | Peeled:H11 |
Cold Drawn Steel Round Bar | 6-100 | Black Surface:H11 | Peeled:H11 |
9: Delivery Condition
For hot forged bar, usually the delivery condition is hot forged, annealed rough turned/Black surface.
For hot rolled bar, usually the delivery condition is hot rolled, annealed, Black surface.
For hot forged plate, usually the delivery condition is hot forged, annealed, milled surface
For hot rolled plate, usually the delivery condition is hot rolled, annealed, black surface.
