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About Us

Naci Uyar has marked 50 years of its presence in the year 2018. The company located in a prime location of Istanbul, offers a broad range of imported steel stocks of Turkey. The Importer and Exporter deals in all kinds of steel, from Heat Treatable Steel, Case Hardening Steel, Spring Steel, Seamless Steel Pipe, Carbon Seamless Steel Pipe, Stainless Steel, Bearing Steel, to Structural Steel, based on the grade. Based on the shape, one can find here round, pipe and flat steel and steel products, like Flat Bars, Round Bars, Square Bars, Slab, Seamless Steel Pipe, etc. Every product is offered in specific size range. About 40% of the steel and steel products we deal in are exported to the markets of Indonesia, India, Saudi Arabia, Singapore, South Africa. Manufactured utilizing rolling, cold forming, forging and peeling machinery, the range is often used in machinery and automotive industry.

Ours has become a leading company in Turkish steel industry, given to the strong relations it shares with international steel manufacturers. We import and supply 3.1.B certificated and ultrasonic guaranteed products. We stock 40,000 tons of broad sort of steel and serve local and international customers. We use professional expertise to deliver products of desired quality and standards to customers.

In 2008, our company inaugurated a branch in Adana with a purpose to provide more customer oriented service in the region. We stock both, local and imported products in our warehouse.

A thousands of investors have showed interest in our company, as we have been providing high quality products and reliable service since inception.

History

Naci Uyar founded the company and named it after his name. He has been a co-founder of leading iron and steel manufacturing and storage companies, and has amassed a rich experience in the iron and steel industry. The company was initially located in °kitelli Organized Industrial Zone and in years that progressed has maintained its progress in the industry. In 2000, it established Burla Iron and Steel Ltd. and increased its sales volume 500 %. The same year, a new plant was activated in Istanbul Bekmece. In 2008 the Istanbul headquartered company opened its branch in Adana. For three generations, company has been providing the widest range of products.

Quality Standards

Our company supplies the thoroughly inspected products in need quality and condition to customers. We import 3.1.B certificated products from the leading, global steel manufacturers and make available to customers in large quantities. We can provide 3:1B certificates to the customers. On request, we can provide ultrasonic test, chemical analysis and Brinell hardness test values to customers.

Adana Office

Through our Adana office, we are meeting the rising demand of local and imported products in Mediterranean and Middle East region. Since the inauguration, we are continually increasing our capacity to meet the demand of customers in the region. The products one can find in this office are:

  • TUBE
  • TRANSMISSION
  • FLAT BARS
  • FREE CUTTING STEEL
  • SQUARE
  • 4140 SQUARE
  • EQUAL ANGLES
  • 4140 FLAT BARS
  • 1050-1040 STEEL
  • CK45 -1050 SQUARE
  • HEXAGONAL BARS
  • C45
  • 8620
  • 4140
  • ST52
  • FLAT BARS
  • 4340 FORGED STEEL
  • CK45 FORGED STEEL
  • 8620 FORGED STEEL
  • 4140 FORGED STEEL
  • ST52-3 FORGED STEEL
  • 14N°CR14
  • 7131
  • 4340
  • 17CRN°MO6 / 18CRN°MO7-6
  • 100CR6

International Steel Standards

Mat. No.

DIN

SAE

BS

AFNOR

EN

1.0570

ST52-3

1024

50D

E36-3


1.0715

9SMn28

1215

230M07

S250

11SMn30

1.0718

9SMnPb28

12L14

230M07Pb

S250Pb

11SMnPb30

1.0721

10S20

1108-1109

10S20

10F2

10S20

1.0722

10SPb20


10SPb20


10SPb20

1.0726

35S20


35S20


212A37 / 212M36

1.0727

45S20

1146

46S20


46S20

1.0728

60S20





1.0736

9SMn36

12L14

11SMn37

S300

230M07

1.0737

9SMnPb36


11SMnPb37

S300Pb

230M07Pb

1.0756

35SPb20


35SPb20



1.0757

45SPb20


46SPb20


46SPb20

1.0758

60SPbM





1.1141

CK15

1015

080M15

XC15



CK20

1020

080M20

XC25, XC18


1.1178

CK30

1030

080M30

XC30

C30E

1.1181

CK35

1035

080A35

XC32

C35E

1.1186

CK40

1040

080M40

XC42H1

C40E

1.1191

CK45

1045

080M46

XC45H1u

C45E

1.2738

40CrMnNiMo8-6-4

P20+Ni


40CMND8


1.3505

100Cr6

52100

2S135

100C6

100Cr6

1.4021

X20Cr13

420

420S37

Z20C13

X20Cr13

1.5752

14NiCr14

3415 - 3310

655A12

12NC15


1.5805

10NiCr5-4


637M17

10NC6


1.6510


8640




1.6523

21NiCrMo2

8620

805M20

20NCD2


1.6580

30CrNiMo8


823M30

30CND8


1.6582

34CrNiMo6

4340

817M40

35NCD6

34CrNiMo6

1.6587

17CrNiMo6

4317

820A16

18NCD6


1.7034

37Cr4

5135

530M36

38C4


1.7035

41Cr4

5140

530M40

42C4

41Cr4

1.7131

16MnCr5

5115

590M17

16MC5

16MnCr5

1.7147

20MnCr5

5120


20MC5


1.7218

25CrMo4

4130

1717CDS110

25CD4

25CrMo4

1.7225

42CrMo4

4140

708M40

42CD4

42CrMo4

1.7228

50CrMo4

4150



50CrMo4

1.8159

50CrV4

50C4V2

708M50

51CrV4

51CrV4


Chemical Composition of Steels

CK45 / SAE 1045  (1.1191)

C

Mn

Si

P

S

Cr

Ni

Cu

0.42-0.50

0.50-0.80

0.40 max

0.035 max

0.015-0.035

0.29 max

0.29 max

0.35 max



42CrMo4  / SAE 4140  (1.7225)

C

Mn

Si

P

S

Cr

Ni

Cu

Mo

Al

0.38-0.43

0.75-1.00

0.15-0.35

0.035 max

0.020-0.040

0.80-1.10

0.30 max

0.35 max

0.15-0.50

0.020-0.050



21NiCrMo2 / SAE 8620  (1.6523)

C

Mn

Si

P

S

Cr

Ni

Cu

Mo

Al

0.18-0.23

0.70-0.90

0.15-0.35

0.035 max

0.035 max

0.40-0.60

0.40-0.70

0.35 max

0.15-0.25

0.020-0.050



16MnCr5 /  SAE 5115   (1.7131)

C

Mn

Si

P

S

Cr

Ni

Cu

Mo

W

V

0.14-0.19

1.00-1.30

0.40 max

0.035 max

0.02-0.04

0.80-1.10

0.30 max

0.30 max

0.10 max

0.20 max

0.03 max



41Cr4 / SAE 5140  (1.7035)

C

Mn

Si

P

S

Cr

Ni

Cu

0.38-0.43

0.70-0.90

0.15-0.35

0.03 max

0.04 max

0.90 - 1.10

0.25 max

0.35 max



100CR6 (1.3505)

C

Si

Mn

P

S

Cr

Mo

0,93-1,05

0,15-0,35

0,25-0,45

0,025

0,015

1,35-1,60

0-0,10



4340 /34CrNiMo6 (1,6582)

C

Si

Mn

P

S

Cr

Mo

Ni

0,30-0,38

0-0,40

0,50-0,80

0,035

0,035

1,30-1,70

0,15-0,30

1,30-1,70



14NiCr14

C

Si

Mn

P

S

Cr

Ni

0,14-0,20

0,40

0,40-0,70

0,035

0,035

0,60-0,90

3,00-3,50



18CrNiMo7-6 / 17CrNiMo6

C

Si

Mn

P

S

Cr

Mo

Ni

0,15-0,21

0,40

0,50-0,90

0,035

0,035

1,50-1,80

0,25-0,35

1,40-1,70


* Chemical compositions may vary according to different country standards.


Carbon Steel Flat Bar
Carbon Steel Flat Bar
Carbon Steel Round Bar
Carbon Steel Round Bar
Free Cutting Steel Bar
Free Cutting Steel Bar
Cold Rolled Bar
Cold Rolled Bar
Hot Rolled Bar
Hot Rolled Bar
FORGED BARS C45 - 4140 - 8620
FORGED BARS C45 - 4140 - 8620
Alloy Steel Flat Bar
Alloy Steel Flat Bar
Seamless Steel Pipes
Seamless Steel Pipes