PRODUCT DESCRIPTION
1. INTRODUCTION:
Oriented electrical steel, also known as cold-rolled oriented silicon steel, refers to cold-rolled electrical steel containing 2.9% to 3.5% Si, and the crystal structure of the steel plate has certain rules and directions. Oriented electrical steel is an indispensable soft magnetic material in the power industry, mainly used in transformers, rectifiers, reactors and large motors and other industries.
B27R090 means domain refined high induction GO electrical steel
with a nominal thickness of 0.27mm, the guaranteed value of core
loss P17/50 not more than 0.90W/kg.
2. APPLICATION:
| Varieties | Conventional type | High induction type | Domain refined high induction type |
| Large motors | ✶ | ✶ |
|
| Large transformers | ✶ | ✶ | ✶ |
| Medium and small transformers | ✶ | ✶ | ✶ |
| Distributing transformers | ✶ | ✶ |
|
| Voltage regulator | ✶ | ✶ |
|
| Reactor and magnetic amplifier | ✶ | ✶ | ✶ |
| IF transformer |
| ✶ |
|
| Mutual inductor | ✶ | ✶ |
|
| TV transformer | ✶ | ✶ |
|
| Radio transformer | ✶ | ✶ |
|
| Radio broadcast transformer |
| ✶ |
|
3.Standard dimensions of products：
| Available thickness (mm) | Available width range （mm） | Inside diameter （mm） |
| 0.23、0.27、0.30、0.35 | 900~1200 | 508 |
4.Dimensional and shape tolerances：
| Width (mm) | Thickness (mm) | Thickness tolerance （mm） | Longitudinal thickness tolerance （mm） | Traverse thickness tolerance （mm） | Width tolerance （mm） | Flatness （%） | Camber within 2m （mm） |
| 900~1200 | 0.23 | ±0.02 | ≤0.03 | ≤0.02 | 0~+2 | ≤1.5 | ≤1.0 |
0.27
| ±0.03 |
| 0.30 |
| 0.35 |
Note:
a. Delivery without trimming is allowed, and the allowable width deviation is 0~+5mm.
b. Traverse thickness deviation refers to the thickness difference between the sheet center and 15mm from the edge.
c. The longitudinal thickness difference is the difference of the measured maximum thickness and the minimum thickness in the longitudinal direction (parallel to the rolling direction) at an arbitrary 2m length of steel on steel.
d. Please consult us if you have special requirements.
5.Standard electromagnetic properties：
| Type | Grade | Thickness (mm) | Density （kg/dm3） | Max. Core loss （W/kg） | Min. Induction （T） |
| Conventional G type | B23G110
| 0.23
| 7.65
| 1.10
| 1.80
|
| B27G120 | 0.27 | 7.65 | 1.20 | 1.80 |
| B30G120 | 0.30
| 7.65
| 1.20 | 1.80 |
| B30G130 | 1.30 | 1.80 |
| B30G140 | 1.40 | 1.80 |
| B35G135 | 0.35 | 7.65 | 1.35 | 1.80 |
| B35G145 | 1.45 | 1.80 |
| B35G155 | 1.55 | 1.80 |
| High induction P type | B23P085 | 0.23
| 7.65
| 0.85 | 1.87
|
| B23P090 | 0.90 | 1.87 |
| B23P095 | 0.95
| 1.87 |
| B27P090 | 0.27 | 7.65 | 0.90
| 1.88 |
| B27P095 | 0.95 | 1.88 |
| B27P100 | 1.00 | 1.88 |
| B30P095 | 0.30
| 7.65 | 0.95 | 1.88 |
| B30P100 | 1.00 | 1.88 |
| B30P105 | 1.05 | 1.88 |
| B30P120 | 1.20 | 1.88 |
| B35P115 | 0.35 | 7.65 | 1.15
| 1.88
|
| B35P125 | 1.25 | 1.88 |
| B35P135 | 1.35 | 1.88 |
| Domain refined high induction R type | B23R080 | 0.23
| 7.65
| 0.80 | 1.87 |
| B23R085 | 0.85 | 1.87 |
| B23R090 | 0.90 | 1.87
|
| B27R085 | 0.27 | 7.65
| 0.80 | 1.87 |
| B27R090 | 0.85 | 1.87 |
| B27R095 | 0.90 | 1.87 |
Note: a. Detecting basis GB/T3655-2008(G type and P types)、GB/ T13789-2008（R type b. G type and P type test specimens are sheared to the rolling direction and annealed for stress relieving c. P17/50 means core loss of sample per kg at max. magnetic induction 1.7T and frequency 50Hz; d. B8 means magnetic induction corresponding to 800A/m magnetic field intensity.
6.Typical magnetic properties：
| Type | Grade | Thickness (mm) | Density (kg/dm³) | Core loss(W/kg) | Induction(T) |
| P15/50 | P17/50 | P15/60 | P17/60 | B8 | B25 |
| ConventionalGtype | B23G110 | 0.23 | 7.65 | 0.79 | 1.08 | 1.04 | 1.40 | 1.89 | 1.94 |
| B27G120 | 0.27 | 7.65 | 0.86 | 1.18 | 1.14 | 1.53 | 1.89 | 1.94 |
| B30G120 | 0.30 | 7.65 | 0.84 | 1.15 | 1.11 | 1.50 | 1.89 | 1.94 |
| B30G130 | 0.91 | 1.25 | 1.20 | 1.63 | 1.88 | 1.94 |
| B30G140 | 0.99 | 1.35 | 1.30 | 1.76 | 1.86 | 1.91 |
| B35G135 | 0.35 | 7.65 | 0.97 | 1.33 | 1.28 | 1.74 | 1.86 | 1.91 |
| B35G145 | 1.02 | 1.40 | 1.35 | 1.82 | 1.85 | 1.91 |
| B35G155 | 1.10 | 1.50 | 1.45 | 1.95 | 1.84 | 1.91 |
| High inductionPtype | B23P085 | 0.23 | 7.65 | 0.61 | 0.84 | 0.81 | 1.09 | 1.91 | 1.96 |
| B23P090 | 0.64 | 0.87 | 0.84 | 1.13 | 1.91 | 1.95 |
| B23P095 | 0.66 | 0.90 | 0.87 | 1.17 | 1.90 | 1.95 |
| B27P090 | 0.27 | 7.65 | 0.65 | 0.89 | 0.86 | 1.16 | 1.91 | 1.96 |
| B27P095 | 0.67 | 0.92 | 0.89 | 1.21 | 1.91 | 1.95 |
| B27P100 | 0.69 | 0.95 | 0.92 | 1.25 | 1.90 | 1.95 |
| B30P095 | 0.30 | 7.65 | 0.69 | 0.94 | 0.91 | 1.25 | 1.91 | 1.96 |
| B30P100 | 0.71 | 0.97 | 0.93 | 1.28 | 1.91 | 1.95 |
| B30P105 | 0.73 | 1.00 | 0.96 | 1.31 | 1.91 | 1.95 |
| B30P120 | 0.75 | 1.03 | 0.99 | 1.34 | 1.90 | 1.95 |
| B35P115 | 0.35 | 7.65 | 0.82 | 1.12 | 1.08 | 1.50 | 1.90 | 1.95 |
| B35P125 | 0.89 | 1.22 | 1.18 | 1.60 | 1.89 | 1.94 |
| B35P135 | 0.96 | 1.32 | 1.27 | 1.72 | 1.89 | 1.94 |
| Domain refined high inductionRtype | B23R080 | 0.23 | 7.65 | 0.57 | 0.78 | 0.75 | 1.01 | 1.90 | 1.95 |
| B23R085 | 0.60 | 0.82 | 0.79 | 1.07 | 1.90 | 1.95 |
| B23R090 | 0.63 | 0.86 | 0.83 | 1.12 | 1.88 | 1.94 |
| B27R085 | 0.27 | 7.65 | 0.61 | 0.84 | 0.81 | 1.13 | 1.90 | 1.95 |
| B27R090 | 0.63 | 0.86 | 0.83 | 1.15 | 1.89 | 1.95 |
| B27R095 | 0.66 | 0.90 | 0.87 | 1.18 | 1.89 | 1.94 |
7.Typical mechanical properties:
| Thickness(mm) | Tensilestrength(MPa) | Yieldstrength(MPa) | Elongation(%) | Hardness(Hv1) | 90° Number ofbends | Laminationfactor(%) |
| 0.23 | 352 | 330 | 12 | 200 | 21 | 96.5 |
| 0.27 | 358 | 333 | 12 | 204 | 21 | 97.0 |
| 0.30 | 361 | 336 | 13 | 205 | 20 | 97.5 |
| 0.35 | 364 | 340 | 13 | 206 | 20 | 98.0 |
Note: a. Detecting basis GB/T228- 2002、GB/T 4340.1-1999、 GB/T19289-2003. b. Above properties are typical values for reference only and not as a guarantee. c. L refers to the rolling direction.
8.Packing：