Are you interested in oil pipe welding? Supplier Evek GmbH offers to buy welded oil pipe of domestic and foreign production at an affordable price in a wide range. We provide delivery of products to any point on the continent. The price is optimal.

Relevance

Welding of oil pipes used in the transportation of petroleum products is a common and very responsible operation. The quality of the weld affects the operational safety of the facilities and the efficiency of oil pumping, especially in areas with harsh weather and climatic conditions.

RD 153-006-02

State Standard RD 153-006-02, and defines:

• The rules and sequence of certification for all welding processes;
• Requirements for oil pipes and pipeline fittings;
• Requirements for consumables;
• Requirements for welding equipment.

Quality

RD 153-006-02 also regulates the procedure of carrying out test tests of welded oil pipes and their sections. The issues of butt welding of large and small diameter pipes during their replacement and repair, both in main and service pipelines, are considered separately.

Welding Technologies

Oil pipes can be joined using the following welding technologies:

• - Manual arc welding with coated electrodes;
• - Semi-automatic carbon dioxide welding with solid wire (STT process);
• - Semi-automatic welding with self-shielded flux-cored wire;
• - Automatic submerged arc welding;
• - Automatic welding under shielding gas with solid wire with CRC - Evans AW complex (all seam layers with P-200 heads);
• - Full arc gas automatic welding with CWS .02 systems; or solid wire with P-200 heads (STT method - for root layer);
• - Gas-shielded automatic solid wire welding with M220 and M300 heads (STT method - for the root layer of the weld);
• - automatic welding under shielded gas with flux-cored wire with M220 and M300 heads;
• - Manual argon-arc welding with a non-consumable electrode (for root seams of small-diameter pipes and all layers of joints of thin-walled pipes).

Supplier Evek GmbH offers to buy a welded oil pipe of domestic and foreign production at an affordable price in a wide range. Provide product delivery anywhere in the continent. The price is optimal.

Certification

Products supplied in accordance with the technical standards of GOST R 51-31323949-58-2000 are allowed for welding oil pipes. Each batch of pipes must have a manufacturer's certificate stating the acceptance characteristics regulated by the standard or specifications. Particularly, strength classes and mechanical properties of carbon and low-alloy steel pipes as per GOST 20295-85 shall be within the range specified in the Table:

Welding materials

• - Basic and cellulose electrodes for manual arc welding;
• - fused and agglomerated fluxes for automatic welding of turning joints;
• - solid-section welding wires for automatic and semi-automatic welding under - shielding gases and automatic submerged-arc welding;
• - cored wires for semi-automatic welding with continuous seam formation;
• - cored wires for automatic welding with shielding gas;
• - shielding gas - argon gas, carbon dioxide gas and their mixture - for - automatic and semi-automatic welding of nonrotating and rotary joints of pipes.

Types of electrodes coating

Before welding, the oil pipe ends are usually heated to the specified temperatures. Manual arc welding is performed according to the following options:

• - the root layer and all subsequent layers of the weld are performed with electrodes with the basic type of coating;
• - the root layer of the weld and the hot pass are made with electrodes with cellulose type of coating, the subsequent layers - with electrodes with basic type of coating;
• - all weld layers - with electrodes with cellulose type of coating.

RD 153-006-02 also determines the technology of semi-automatic and automatic (submerged-arc) welding of oil pipes as well as the testing technology of the welded pipeline sections.

Buy. Supplier, price.

Are you interested in oil pipe welding? Supplier Evek GmbH offers to buy welded oil pipe of domestic and foreign production at an affordable price in a wide range. We provide delivery of products to any point on the continent. Price is optimal. We invite you to partner cooperation.