| Specifications︰ | API 5L B,X42,X46,X52,X56,X60,X65,X70
JIS G 3444
JIS G 3445
JIS G3452
ASTM A 513
ASTM A211-85
ASME SA211
ASTM A500
ASTM A252
AS1579
ASTM A-134
ASTM A-139
AWWA C-200
ACNOR/CSA Z245.1
DIN 1615,
DIN 1626,
DIN1628
DIN 17 120
DIN 17 172
EN 10208-1/97
EN 10208-2/96 + AC/96
EN 10219-1/97
STN 42 0144
STN 42 5738
EN 10220:2002 "Seamless and welded steel tubes - General tables of dimensions and masses per unit length"
ISO 4200:1989 "Plain-end steel tubes, welded and seamless"
ČSN 42 5738:1979 "Spiral weld steel pipes"
DIN 2458:1981 "Welded steel tubes"
EN 10219-2:1997 "Cold formed welded structural hollow sections of non-alloy and fine grain steels"
API Spec 5L:2000 "Specification for Line Pipe"
GOST 8696:1974 "Electrically welded steel pipes with spiral seam"
PN 79/H-74244:1979 "Welded steel pipes for transportation of media"
Technical supply regulations
ČSN 42 0144:1979 "Spiral weld steel"
DIN 1615:1984 "Welded circular tubes of non-alloy steels without special quality requirements"
DIN 1626:1984 "Welded circular tubes of non-alloy steels with special quality requirements"
ČSN EN 10208-1:2000 "Steel tubes for pipeline for combustible liquids" - part 1: Requirements according to class A
ČSN EN 10208-2:1999 "Steel tubes for pipeline for combustible liquids" - part 2: Requirements according to class B
DIN 17120:1984 "Welded circular tubes of non-alloy steels for steel constructions"
DIN 17172:1978 "Steel tubes for pipeline for transport of combustible liquids and gases"
DIN 1628:1984 "Welded circular tubes of non-alloy steels with very high quality requirements"
EN 10217-1:2002 "Welded steel pipes for pressure purposes"
EN 10219-1:1997 "Cold formed welded structural hollow sections of non-alloy and fine grain steels"
API Spec 5L:2000 "Specification for Line Pipe"
GOST 8696:1974 "Electrically welded steel pipes with spiral seam"
PN 79/H-74244:1979 "Welded steel pipes for transportation of media"
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| Standard Met︰ | FOUNDATION PILES for soil consolidation, marine wharfs,
SPECIFICATION A 252
CHIMNEYS AND VENTILATION DUCTS for air and dust filtering systems, and smoke evacuation
SPECIFICATION A 252 / A 134 / A 139
PILLARS for ski chair-lifts and bridges
SPECIFICATION A 252 / A139
RESERVOIRS / TANKS for conveying liquid, solid,
gas and vapor matters
SPECIFICATION A 252 / A 134 /
A 139 and AWWA C 200
FLOATING DECKS for marinas and pleasure harbours
SPECIFICATION A 252 / A 134 / A 139
PYLONS for transmission towers
/ telecommunications
SPECIFICATION A 252 / A 139
POSTS for signs, fences and enclosures
SPECIFICATION A 252
PIPES for irrigation systems,
drinking water and sewage
SPECIFICATION A 134 /
A 139 / AWWA C 200
FRAMES / SUPPORTS and CONVOYER STRUCTURES
SPECIFICATION A 252
PIPES for manure transfer systems,
recycled paper, wood wastes, mud
SPECIFICATION A 252 / A 134 / A 139
PIPES for water hold back and secure barriers
SPECIFICATION A 252 / A 139
PENSTOCKS for supplying hydro-electric turbines
SPECIFICATION A 134 / A 139
/ AWWA C 200
CASINGS for tunnels and underground passages
SPECIFICATION A 252 / A 134 / A 139
CULVERTS for land irrigation, drainage, etc.
SPECIFICATION A 252 / A 134 / A 139
Pipe production
• pipes are produced by forming steel strips into a cylindrical shape followed by double-side automatic submerged arc welding
• delivery in accordance with DIN, API, EN, STN; in accordance with other
standards or specially agreed conditions
• diameters from 406 to 1420 mm; wall thickness from 5,0 to 12,5 mm; lengths from 8 to 18 m, or in exact lengths with tolerance in accordance with relevant standards. On agreement, pipes cut in lengths less than 8 m can be delivered in limited quantity.
• all pipes are carefully tested using non-destructive methods (ultrasound, X-rays).
Quality control system
Certified - in accordance with EN ISO 9001: 2000 issued by DNV
- in accordance with API Spec. Q1 issued by the American Petroleum Institute
Delivery conditions
• without surface treatment
• with temporary surface treatment
• with polyethylene insulation in accordance with DIN 30 670 or CAN/CSA Z245 Control and acceptanceApplications
• gas lines
• crude oil lines
• hot water lines
• drinking water lines
• sewage lines
• building and structural purposes
DIN 1615 - without special requirements
DIN 1626 - for pipeline production, containers and equipment for maximal
operational temperature 300 °C and maximal operational pressure
6.4 MPa (depending on diameter and wall thickness).
DIN 1628 - for pipeline production, containers and equipment for extra
demanding requirements.
DIN 17 120 - Welded pipes with a circular cross-section from standard structural steels for steel structures.
DIN 17 172 - for crude-oil and natural gas industry.
Material gradesDelivered dimensions and weights in accordance with DIN 2458
DIN 1615 - Without special requirements and without inner pressure stress.
DIN 1626 - St 37.0, St 44.0, St 52.0
DIN 1628 - St 37.4, St 44.4, St 52.4
DIN 17 120 - RSt 37.2, St 37.3, St 44.3, St 52.3
DIN 17 172 - StE 290.7TM, StE 320.7TM, StE 360.7TM, StE 385.7TM, StE 415.7TM, StE 445.7TM, StE 480.7TM
II. Spiral welded steel pipes in accordance with API SPEC 5L 42nd Edition, January 2000
Used for transportation of gas, crude oil and waterMaterial grades
A, B, X 42, X 46, X 52, X 56, X 60, X 65, X 70
III. Spiral welded steel pipes in accordance withSTN 42 5738 – dimensions
According to quality requirements and application, the pipes are produced and delivered divided into three quality classes:
1st class – for less demanding purposes (protective pipes, sewage pipes etc.).Steel grade not prescribed. Test pressure max. 2,5 MPa.
2nd class – for liquid media transportation, long-distance water and crude oil pipelines. Low-pressure gas pipelines are admitted. Test pressure max. 4,0 MPa.
3rd class – for demanding purposes - long-distance water, crude oil pipelines and gas pipelines. Test pressure depending on used materials.
Material grades
Delivered dimensions and weights in accordance with STN 42 5738
Material grades
EN 10208-1/97 - by mutual agreement
EN 10208-2/96 - L 245 MB, L 290 MB, L 360 MB, L 415 MB, L 450 MB, L 485 MB
+ AC/96 Chemical composition and mechanical properties in accordance with
EN 10208-2/96
EN 10219-1/97 - S 235 JRH, S 275 JOH, S 275 J2H, S 355 JOH, S 355 J2H
Chemical composition and mechanical properties in accordance with
EN 10219-1/97
Pipes with inner cement insulation are suitable for transportation of drinking and industrial water.
Cement mortar insulation in accordance with DIN 2880 and company standard
ISO 00 0035.
ement mortar lining
• no health risk when used for delivery of drinking water
• 100% increasing of lifetime considering to non insulated pipes
• utilization of domestic raw materials
• preventing of loss due to corrosion
• simple, fast and low-cost repair of mortar lining
VI. Outer insulation
Extruded PE in accordance with DIN 30 670, CAN/CSA Z245 – three-Polyethlene insulation
Certified test report
Test report according to standards:
• DIN 50049
• EN 10204
• ASTM A 530
• API 5L
Dimensional standards
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