References

We recommend the company POLNA SA to anyone looking for an experienced manufacturer of valves, ensuring technical support of control valves.

"J.T.C." Joint Stock Company

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Basic assortments

 

Products of steel industry:

Name of goods Grade, Scope of dimensions,
chemical composition, specification
Requirements: certificates, permissions
Bar steel:
Bright bars

1.4571,S355J2G3, Ø 1,8÷Ø 60;
Hexagon from 10 to 60;

Square: from 6 too 45

PN-EN10204 pkt.3.1, PED 2014/68/UE
Peeled bars 1.4571,Ø 20÷Ø 360
Rolled bars 1.4571,S355J2G3,Ø 8÷Ø 380
Forged bars S355J2G3, 1.7335,Ø 50÷Ø 500
Pipes 1.4571;S355JH,Ø 2,6X5÷Ø 660X10

Sheets
(metal plate)

1.4571, S355J2G,≠ 0,5÷≠ 100
Casts
carbon 1.0619;1.6220;PN-EN10213-2;
weight from 5÷1000 kg
PN-EN10204 pkt.3.1, PED 2014/68/UE
alloyed

1.7379; PN-EN10213-2;

weight; from 5÷1000 kg

austenitic

1.4408; PN-EN10213-4;

weight; from 5÷1000 kg

Products of non-ferrous metals

Name of goods Grade, Scope of dimensions,
chemical composition, specification
Requirements: certificates, permissions
Round bars Bronze CuSn10P from fi 20 to 120  3.1 acc PN-EN 10204
Brass CuZn39Pb3 from fi 3 to fi 75
Hexagonal Bars Brass CuZn39Pb3 from 12 to 70
Sleeves Bronze CuSn10P from fi 35x10 to 120x25
Strips Brass CuZn37 R/W from 0,5x500 to 0,8x640
mesh 0,022 - 0,044
PN 80/H-92816, PN-92/H-87025

Input (batch) materials for foundries

Name of goods Grade, Scope of dimensions,
chemical composition, specification
Requirements: certificates, permissions
pig iron for  foundry Pig sow s with weight 10÷15 kg and following chemical composition PN-EN 10204entry.3.1
hematite C 4,0-4,2% Si1,5-1,8% S max.0,02, P 0,04%, Mn 0,4-0,5%
special C4,0-4,2% Si0,4-0,5% S 0,015-0,02 P0,3-0,4% Mn 0,020
sore metal C-4,2-4,3%,Si-0,10-0,14%,S-0,05%,

P-0,02-0,03%, Mn-0,012%
ferroalloys:  
ferrosilicon

FeSi - 73-75%,C - about 0,15%,

Al. - about 1,1 - 1,3 %

ferromanganese Mn 75,0% ,C 7,0-7-5%, P 0,2% 
S 0,02%  granulate 10-50 mm
Divorced pearlites (spheroidizing):  
wire NCD Ø 13 Mg 29,0-31,0%,Si 43,0-45,0%,CeMn-1,5-2,5%,Al. 0,7%
Inostrąg  Si 73-78%, Sr 0,7-1,0%,
Ca max.0,1% Al. max.0,5% gran.2-6mm
scrap of cast iron commercial ZZ8 gabaryty max.500x500x100 mm, bez glazury PN-85/H-15000

Joints

Name of goods Grade, Scope of dimensions,
chemical composition, specification
Requirements: certificates, permissions
Screws acc DIN 939, DIN 2510
grades 1,4980, 1.4571, 1.7225, 1.7709
3.1 acc PN-EN 10204 PED 2014/68/UE
Nuts acc ISO 4032, DIN 2510
grades 1,4980, 1.4571, 1.7225, 1.7709

Services

Name of goods Grade, Scope of dimensions,
chemical composition, specification
Requirements: certificates, permissions
Road transport   

Load capacity from 0,5÷24 Mg;
destinations-domestic ,Europe

insurance