About Us
Eastern Steel Manufacturing Co.,Ltd is a leading manufacturer and distributor of seamless steel pipe, welded steel pipe, OCTG products and fittings. We supply first-step processing, semi-finished parts and finished parts to help our clients meet fabrication requirements beyond their capacity or to improve operations by moving forward the pre-production processing.
Product Category
News
In this column you can find the steel pipe related articles you need, including industry trends, product standards and materials, and some technical guidelines.
Services
Eastern Steel Manufacturing Co.,Ltd not only improve product production and sales services, but also provide additional value-added services. As long as you need, we can complete your specific needs together.
Facility
Eastern Steel Manufacturing Co.,Ltd not only improve product production and sales services, but also provide additional value-added services. As long as you need, we can complete your specific needs together.
Projects
Many years of large-scale project experience in various fields（Oil & Gas, Construction, Power Energy, Marine & Offshore, Water Treatment, Exploration & Drilling Services, Pipeline & Petrochemical etc.）, professional project team is responsible from receiving until the end of the project.
General series: 0.30mm、0.35mm、0.50mm、0.65mm
High efficient series: 0.35mm、0.50mm
Stress relief annealing series: 0.35mm、0.50mm
New energy vehicle series: 0.20mm、0.25mm、0.27mm、0.30mm
General series: 0.30mm、0.35mm、0.50mm、0.65mm
Motor Company general requirements
High efficient series: 0.35mm、0.50mm
High efficient motor, high efficient compressor motor, frequency conversion motor etc.
Stress relief annealing series: 0.35mm、0.50mm
high speed stamping products, EI transformer, air conditioner motor etc.
New energy vehicle series: 0.20mm、0.25mm、0.27mm、0.30mm
automobile motor, transformer, reactor etc
Properties of electrical Steel
General series
|
Grade |
Nominal Thickness (mm) |
Theoretical density (kg/dm3) |
Theoretical density (kg/dm3) |
Min.Magnetic induction(T) |
|||||
|
50Hz |
|
B25 |
B50 |
B100 |
|||||
|
30SW230 |
0.3 |
7.65 |
2.30 |
2.90 |
1.49 |
1.60 |
1.70 |
||
|
35SW230 |
0.35 |
7.60 |
2.30 |
2.90 |
1.49 |
1.62 |
1.70 |
||
|
35SW250 |
0.35 |
7.65 |
2.50 |
3.14 |
1.49 |
1.62 |
1.70 |
||
|
35SW270 |
0.35 |
7.65 |
2.70 |
3.36 |
1.49 |
1.62 |
1.70 |
||
|
35SW300 |
0.35 |
7.65 |
3.00 |
3.74 |
1.49 |
1.62 |
1.70 |
||
|
35SW330 |
0.35 |
7.65 |
3.30 |
4.12 |
1.50 |
1.62 |
1.71 |
||
|
35SW360 |
0.35 |
7.65 |
3.60 |
4.55 |
1.51 |
1.63 |
1.72 |
||
|
35SW400 |
0.35 |
7.65 |
4.00 |
5.10 |
1.53 |
1.64 |
1.74 |
||
|
35SW440 |
0.35 |
7.70 |
4.40 |
5.60 |
1.54 |
1.65 |
1.74 |
||
|
50SW230 |
0.50 |
7.60 |
2.30 |
3.00 |
1.49 |
1.62 |
1.70 |
||
|
50SW250 |
0.50 |
7.60 |
2.50 |
3.21 |
1.49 |
1.62 |
1.70 |
||
|
50SW270 |
0.50 |
7.65 |
2.70 |
3.47 |
1.49 |
1.62 |
1.70 |
||
|
50SW290 |
0.50 |
7.65 |
2.90 |
3.71 |
1.49 |
1.62 |
1.70 |
||
|
50SW310 |
0.50 |
7.65 |
3.10 |
3.95 |
1.49 |
1.62 |
1.70 |
||
|
50SW330 |
0.50 |
7.65 |
3.30 |
4.20 |
1.49 |
1.60 |
1.70 |
||
|
50SW350 |
0.50 |
7.65 |
3.50 |
4.45 |
1.50 |
1.62 |
1.70 |
||
|
50SW400 |
7.70 |
4.00 |
5.10 |
1.53 |
1.64 |
1.73 |
|||
|
50SW470 |
0.50 |
7.70 |
4.70 |
5.90 |
1.54 |
1.65 |
1.74 |
||
|
50SW530 |
0.50 |
7.70 |
5.30 |
6.66 |
1.56 |
1.65 |
1.75 |
||
|
50SW600 |
0.50 |
7.75 |
6.00 |
7.55 |
1.57 |
1.67 |
1.76 |
||
|
50SW700 |
0.50 |
7.80 |
7.00 |
8.80 |
1.60 |
1.69 |
1.77 |
||
|
50SW800 |
0.50 |
7.80 |
8.00 |
10.10 |
1.60 |
1.70 |
1.78 |
||
|
50SW1000 |
0.50 |
7.85 |
10.00 |
12.60 |
1.62 |
1.73 |
1.81 |
||
|
50SW1300 |
0.50 |
7.85 |
13.00 |
16.40 |
1.62 |
1.74 |
1.81 |
||
|
65SW400 |
0.65 |
7.65 |
4.00 |
5.20 |
1.52 |
1.65 |
1.72 |
||
|
65SW600 |
0.65 |
7.75 |
6.00 |
7.71 |
1.56 |
1.68 |
1.76 |
||
|
65SW700 |
0.65 |
7.75 |
7.00 |
8.89 |
1.57 |
1.67 |
1.76 |
||
|
65SW800 |
7.80 |
8.00 |
10.26 |
1.60 |
1.70 |
1.78 |
|||
|
0.65 |
|||||||||
|
65SW1000 |
0.65 |
7.80 |
10.00 |
12.77 |
1.61 |
1.71 |
1.80 |
||
|
65SW1300 |
0.65 |
7.85 |
13.00 |
16.60 |
1.61 |
1.71 |
1.80 |
||
High Efficient Series
|
Grade |
Nominal Thickness |
Nominal Density |
P15/50 Max. loss |
B50 |
|
Min. Magnetic induction |
||||
|
Grade |
（mm） |
(kg/dm3) |
（W/kg） |
(T) |
|
35SWH250 |
0.35 |
7.65 |
2.50 |
1.68 |
|
50SWH470 |
0.50 |
7.70 |
4.70 |
1.72 |
|
50SWG470 |
0.50 |
7.75 |
4.70 |
1.72 |
|
50SWH600 |
0.50 |
7.75 |
6.00 |
1.72 |
|
50SWH800 |
0.50 |
7.80 |
8.00 |
1.74 |
|
50SWH1300 |
0.50 |
7.85 |
13.0 |
1.76 |
Stress Reliefannealing Series
|
Grade |
Nominal Thickness |
Nominal Density |
P15/50 | B50 |
|
Max. loss |
Min. Magnetic induction |
|||
|
（mm） |
(kg/dm3) |
（W/kg) |
(T) |
|
|
35SWR300 |
0.35 |
7.80 |
3.00 |
1.73 |
|
50SWR350 |
0.50 |
7.80 |
3.50 |
1.74 |
|
50SWR450 |
0.50 |
7.85 |
4.50 |
1.72 |
New Energy Vehicle Series
|
Grade |
Normal |
Nominal Density |
P10/400 |
B50 |
|
Thickness |
Max. core loss |
Min. Magnetic induction |
||
|
（mm） |
(kg/dm3) |
（W/kg） |
(T) |
|
|
20SW1200 |
0.20 |
7.60 |
12.0 |
1.61 |
|
20SW1500 |
0.20 |
7.65 |
13.0 |
1.64 |
|
25SW1250 |
0.25 |
7.60 |
12.5 |
1.63 |
|
25SW1250H |
0.25 |
7.60 |
12.5 |
1.65 |
|
25SW1300 |
0.25 |
7.60 |
13.0 |
1.63 |
|
27SW1400H |
0.27 |
7.60 |
14.0 |
1.65 |
|
27SW1400 |
0.27 |
7.60 |
14.0 |
1.64 |
|
27SWH1400 |
0.27 |
7.65 |
14.0 |
1.64 |
|
27SWG1400 |
0.27 |
7.65 |
14.0 |
1.67 |
|
30SW1500 |
0.30 |
7.60 |
15.0 |
1.64 |
|
30SWH1500 |
0.30 |
7.65 |
15.0 |
1.65 |
|
30SWG1500 |
0.30 |
7.65 |
15.0 |
1.67 |
|
35SW1700 |
0.35 |
7.60 |
17.0 |
1.64 |
|
35SWG1700 |
0.35 |
7.65 |
17.0 |
1.68 |
|
35SW1700H |
0.35 |
7.60 |
17.0 |
1.63 |
|
35SW1900 |
0.35 |
7.65 |
19.0 |
1.66 |
|
35SWH1900 |
0.35 |
7.65 |
19.0 |
1.67 |
Product Packing
|
|
|
|
1.Rolled silicon steel |
7.Inner iron plate guard |
|
2.Inner rusty-resisted paper |
8.Outside iron plate guard |
|
3.Outside anti-rust paper |
9.End iron plate guard |
|
4.Plastic seal |
10.Inner iron corner guard |
|
5. Inner paper corner guard |
11.Outside iron corner guard |
|
6.Outside paper corner guard |
12.Radial iron banding strip |
-Product grade standard
|
Type |
(mm) |
Shougang |
NSC |
JFE |
TKS |
Posco |
NI&Sco |
AK |
|
Thickness |
||||||||
|
General series |
0.35 |
35SW230 |
35H230 |
35JN230 |
M235-35A |
35PN230 |
|
|
|
35SW250 |
35H250 |
35JN250 |
M250-35A |
35PN250 |
2413 |
M-15 |
||
|
35SW270 |
35H270 |
35JN270 |
M270-35A |
35PN270 |
2412 |
M-19 |
||
|
35SW300 |
35H300 |
35JN300 |
M300-35A |
35PN300 |
2411 |
M-22/M-27 |
||
|
35SW360 |
35H360 |
35JN360 |
|
35PN360 |
|
|
||
|
35SW440 |
35H440 |
35JN440 |
|
35PN455 |
|
|
||
|
35SW550 |
|
|
|
35PN560 |
|
|
||
|
0.50 |
50SW230 |
50H230 |
50JN230 |
M230-50A |
50PN230 |
|
|
|
|
50SW250 |
50H250 |
50JN250 |
M250-50A |
50PN250 |
|
|
||
|
50SW270 |
50H270 |
50JN270 |
M270-50A |
50PN270 |
2414 |
|
||
|
50SW290 |
50H290 |
50JN290 |
M290-50A |
50PN290 |
2413 |
M-15 |
||
|
50SW310 |
50H310 |
50JN310 |
M310-50A |
50PN310 |
2412 |
M-19 |
||
|
|
|
|
|
|
|
|
||
|
0.50 |
50H350 |
50JN350 |
M350-50A |
50PN350 |
|
M-22 |
||
|
|
|
M400-65A |
50PN400 |
|
M-27/M-36 |
|||
|
50SW470 |
50H470 |
50JN470 |
M470-50A |
50PN445 |
2214 |
|
||
|
50SW600 |
50H600 |
50JN600 |
M600-50A |
50PN595 |
2212 |
|
||
|
50SW700 |
50H700 |
50JN700 |
M700-50A |
50PN760 |
|
M-47 |
||
|
50SW800 |
50H800 |
50JN800 |
M800-50A |
50PN890 |
2011 |
|
||
|
50SW1000 |
50H1000 |
50JN1000 |
M940-50A |
50PN1015 |
|
|
||
|
50SW1300 |
50H1300 |
50JN1300 |
M1100-50A |
50PN1270 |
|
|
||
|
0.65 |
65SW400 |
|
|
|
65PN400 |
|
|
|
|
65SW800 |
|
65JN800 |
M800-65A |
65PN890 |
|
M-47 |
||
|
65SW1000 |
|
65JN1000 |
M1000-65A |
65PN1015 |
|
|
||
|
65SW1300 |
|
65JN1300 |
M1300-65A |
65PN1270 |
|
|
||
|
High efficient series |
0.35 |
35SWH250 |
|
|
|
|
|
|
|
35SWH300 |
|
|
|
|
|
|
||
|
0.50 |
50SWH470 |
|
50JNE470 |
|
|
|
|
|
|
50SWH600 |
|
|
|
|
|
|
||
|
|
|
|
|
|
|
|
||
|
50SWH1300 |
|
|
|
|
|
|
||
|
Stress relief annealing series |
0.50 |
50SWR350 |
|
50JNA350 |
|
|
|
|
|
50SWR1300 |
|
|
|
|
|
|
E-mail: sales@eastern-steels.com
