Basic production materials used for manufacturing pressure pipelines include carbon steel, low alloy steel and high alloy steel.

Example of steel used in the production of pipelnines (classification according to PN-CR ISO 15608:2000 standard):

Group 1:

• Subgroup 1.1: P195 ÷ P275GH
• Subgroup 1.2: P295 ÷ P355GH; L290NB; 16Mo3; A106Gr.B; A106Gr.C
• Subgroup 1.3: L415NB

Group 2:

• Subgroup 2.1: L390 ÷ L450M
• Subgroup 2.2: L485 ÷ L555M

Group 3:

• Subgroup 3.1: L390 ÷ L690Q

Group 4:

• Subgroup 4.2: 15NiCuMoNb5-6-4; WB36

Grupa 5:

• Subgroup 5.1: 13CrMo4-4; 13CrMo4-5; 15HM; P11
• Subgroup 5.2: 10CrMo9-10; 11CrMo9-10; 10H2M, P22

Grupa 6:

• Subgroup 6.1: 14MoV6-3; 13HMF
• Subgroup 6.4: X10CrMoVNb9-1 (P91); X20CrMoV11-1; X10CrWMoVNb9-2 (P92)

Group 8:

• Subgroup 8.1: 1H18N9T; X5CrNiTi18-10; X6CrNiTi18-10; X7CrNiNb18-10; X6CrNiMoTi17-12-2; H17N13M2T; A182GrF316

Grupa 10:

• Subgroup 10.1: X2CrNiMoN22-5-3; 1.4462
• Subgroup 10.2: X2CrNiMoN25-7-4; 1.4410

Materials are supplied by qualified suppliers with incorporated Quality Assurance Systems and meeting quality requirements specified in Directive 97/23/EC.