30Q120, 30Q130, B30P120, 30QH105 CRGO Silicon Steel Coil & Sheet

30Q120, 30Q130, B30P120, 30QH105 CRGO Silicon Steel Coil & Sheet | Grain Oriented Electrical Steel

Low core loss reduces transformer no-load energy consumption
High magnetic induction improves transformer working efficiency
0.30mm thickness, good balance of performance and cost
Uniform tension insulation coating, good stacking factor & low noise
Stable mechanical property, easy slitting, cutting and punching

Product Overview

30Q120, 30Q130, B30P120 and 30QH105 are 0.30mm cold rolled grain oriented (CRGO) silicon steel, widely used for distribution transformers, power transformers, reactors and inductors.

Conventional grades 30Q120, 30Q130, B30P120 offer stable magnetic performance and cost-efficient transformer core production. HiB grade 30QH105 adopts laser magnetic domain refinement, providing lower core loss and quieter operation, suitable for high-efficiency and energy-saving transformer designs.

All coils are coated with uniform inorganic tension insulation coating, delivered in coil or cut-to-length sheet form. Custom slitting, cutting and packaging services are available. Full magnetic test reports and factory certification documents are supplied with each shipment.

Cold Rolled Grain Oriented Silicon Steel (CRGO) Sheet

Chemical & Mechanical Property Snapshot

Grade	Si (%)	C (max,%)	Yield Strength (MPa)	Tensile Strength (MPa)	Elongation (%)	Core Loss P1.7/50 (W/kg)
30Q120	3.0–3.3	0.03	335	455	≥8	≤1.20
30Q130	3.0–3.3	0.03	335	455	≥8	≤1.30
B30P120	3.0–3.3	0.03	345	465	≥8	≤1.20
30QH105	3.0–3.3	0.03	355	475	≥7	≤1.05

Detailed Technical Specifications

Item	Specification
Product Name	CRGO Cold Rolled Grain Oriented Silicon Steel Coil / Sheet
Applicable Grades	30Q120, 30Q130, B30P120, 30QH105
Executive Standards	GB/T 2521.2, IEC 60404-8-7, JIS C2553, EN 10107, ASTM A876
Thickness Range	0.30 mm
Width Range	20 mm – 1200 mm, custom slitting available
Length Range	Cut-to-length sheets available per requirement
Surface Finish / Coating	Uniform inorganic tension insulation coating
Processing Service	Longitudinal slitting, cut-to-length, lamination punching
Quality Documents	Magnetic test report, Mill Test Certificate (MTC), factory certification
MOQ (Minimum Order Quantity)	5 Ton
Payment Terms	T/T, L/C at Sight
Delivery Time	7–15 working days after receiving deposit
Package	Waterproof paper + plastic film + wooden pallet, seaworthy export packing
Application Fields	Distribution transformer, power transformer, reactor, inductor core

Product Comparison Table

Item	30Q120	30Q130	B30P120	30QH105
Thickness	0.30mm	0.30mm	0.30mm	0.30mm
Core Loss P1.7/50 (W/kg)	1.20	1.30	1.20	1.05
Magnetic Induction B8 (T)	1.84	1.83	1.85	1.87
Type	Conventional CRGO	Conventional CRGO	Conventional CRGO	HiB laser domain refined
Typical Usage	Distribution transformer	Standard transformer core	Medium power transformer	High-efficiency transformer

App Market

Reliable Steel Coil Solutions For Diverse Industrial Applications

Large power distribution transformers of the State Grid

Transformer Voltage Current Metering Transformer Reactor Core

Photovoltaic Inverter Energy Storage Transformer, Wind Power Box Transformer, High-speed rail Traction Transformer

1 Military special power supply Excitation core of medical nuclear magnetic equipment

Product Packaging

Secure Export Packaging For Safe Handling And Delivery

FAQs

What does the number 30 in 30Q120 mean?

30 refers to the nominal thickness 0.30 mm.

What is the difference between B30P120 and 30QH105?

30QH105 is a HiB laser domain refined grade with lower core loss and better magnetic performance than conventional B30P120, used for high-efficiency energy-saving transformers.

Can 30QH105 replace 30Q120/30Q130/B30P120?

Yes. 30QH105 is an upgraded grade at the same 0.30mm thickness, with lower iron loss, so it can replace the conventional 0.30mm grades to reduce no-load loss.

Can you provide slitting service for 0.30mm CRGO?

Yes, we can slit mother coils to custom widths and cut to sheets according to your lamination drawings.

What documents can you provide for 30Q series CRGO?

Magnetic test reports, Mill Test Certificate (MTC) and factory certification documents are supplied for quality inspection and customs clearance.

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30Q120, 30Q130, B30P120, 30QH105 CRGO Silicon Steel Coil & Sheet | Grain Oriented Electrical Steel