| Payment Type: | L/C,T/T,D/P |
| Incoterm: | CIF,EXW,CFR,FOB |
| Transportation: | Ocean,Land,Express |
| Port: | Qingdao,Tianjin,Shanghai |
Model No.: En30b 835m30 30nicrmo16-6 1.6747
Standard: Aisi, Astm, Bs, Din, Gb, Jis
Place Of Origin: China
Production Process: Forged, Hot Rolled
Application: Structural Steel Bar, Die Steel Bar, Tool Steel Bar
Whether Alloy: Is Alloy
Special Steel: Free Cutting Steel
Species: Alloy Steel Bar
Tolerance: ±1%
Processing Service: Bending, Welding, Decoiling, Cutting, Punching
Length: 3-5.8m, or as Per Request
| Selling Units | : | Ton |
| Package Type | : | Seaworthy Package |
| Picture Example | : |
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Product Description
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| Country | Germany | British |
| Standard | EN10250 | BS970 |
| Grade | 30NiCrMo16-6/1.6747 | EN30B/835M30 |
| 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 |
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.
| 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 | |
| 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. | |
6:Heat Treatment
Forging - Commence 1200ºC (2190ºF) Max.
Double Annealing - Austenitize 850ºC to 865ºC (1560ºF to 1590ºF)Quench and tempered
Machinability: Double Anneal at 635ºC to 650ºC (1175ºF to 1200ºF)Do not exceed 660ºC (1220ºF)
A Hardness of 269 HB Max is achievable
Normalize, Temper & Stress Relieve - Austenitize 850ºC to 865ºC (1560ºF to 1590ºF).Air cool to room temperature
Temper 530ºC (990ºF), air cool
Stress Relieve 500ºC (930ºF), air cool
Hardened & Tempered Austenitize 850ºC to 865ºC (1560ºF to 1590ºF) Forced air cool or oil quench. Temper at 200ºC (400ºF), air cool.
Product Display
We can produce different sizes, thicknesses, widths and materials according to your requirements
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