SAES-L-136 PDF – Pipe, Flange Fittings Material Requirements

This article is about SAES-L-136 which is about Pipe, Flange and Fitting Material Requirements and download SAES-L-136 PDF for piping and mechanical engineers, supervisors and project managers. This is saudi aramco standard based on international codes and standards and useful for piping and mechanical engineering knowledge to get job as engineers, QC Supervisors and QC managers, Engineering managers and technicians.

SAES-L-136 PDF Download

SAES-L-136

SAES-L-136 Pipe, Flange and Fitting Material Requirements

The standard provides requirements for the selection of both metallic and non-metallic pipe, flanges, and fittings for in-plant and pipeline applications. However, it specifically excludes utility and plumbing piping as defined in SAES-S-060 (Utility Systems Piping) and SAES-S-070 (Plumbing Systems Piping). The standard focuses on addressing the needs of industrial and process piping systems rather than utility and plumbing systems.

General Notes of SAES-L-136 PDF Download

According to the standard, the selection of materials for various applications follows the Saudi Aramco Materials System Specifications (SAMSS). Here are the specifications mentioned in the standard:

Carbon steel pipe for pipelines and on-plot applications:

• 01-SAMSS-035: API Line Pipe
• 01-SAMSS-038: Small Direct Charge Purchases of Pipe
• 01-SAMSS-333: High Frequency Welded Line Pipe
• 01-SAMSS-043: Carbon Steel Pipes for On-Plot Piping

Commentary: ASTM A106 Grade B pipes intended for on-plot applications should be substituted by API SPEC 5L Grades as allowed by SAES-L-105 when procuring small quantities from stockists under 01-SAMSS-038.

Non-Metallic Pipe:

• 01-SAMSS-042: Reinforced Thermoset Resin (RTR) Pipe and Fittings in Water and Hydrocarbon Services

CRA (Corrosion Resistant Alloy) Clad or Lined Pipe:

• 01-SAMSS-048: CRA Clad or Lined Steel Pipe

CRA (Corrosion Resistant Alloy) weld overlayed flanges and fittings:

• 02-SAMSS-012

CRA clad pipe spools:

• 01-SAMSS-044

Seamless pipe intended for sour service:

• Seamless pipes procured in accordance with 01-SAMSS-035 and 01-SAMSS-043 do not require HIC (Hydrogen Induced Cracking) testing when intended for sour service. Sour service pipe according to API SPEC 5L should not be procured.

HIC test requirement:

• Small quantity seamless pipes intended for sour service and procured under 01-SAMSS-038 require HIC testing.

Requirements by Material

Here are the additional requirements for different materials specified in the standard:

Furnace butt-welded pipe:

• Furnace butt-welded pipe is not allowed for use.

Cast iron pipe and fittings:

• Cast iron pipe and fittings are restricted to utility and plumbing services defined in SAES-S-060 and SAES-S-070.

Nonmetallic Reinforced Thermoset Resin (RTR) pipe:

• Nonmetallic RTR pipe should be used according to 01-SAMSS-042, SAES-L-620, and SAES-L-650.
• Consult the nonmetallic specialist of ME&CCD/CSD for material service compatibility.

Carbon steel pipe:

• Carbon steel pipe should have a specified minimum yield strength (SMYS) of at least 35 ksi (241 MPa), equivalent to ASTM A106 Grade B or higher.

Pipe grade restrictions:

• The highest grade allowed for all types of pipes is API 5L Grade X-65 for sour service and API 5L Grade X-70 for non-sour service.

Restrictions on use of High Frequency Welded (HFI or ERW) carbon steel pipe: 6.6.1 High Frequency Welded pipe requirements:

• For sour gas or corrosive services (as defined in SAES-L-133), high frequency welded pipe manufactured in accordance with Class C requirements of 01-SAMSS-333 should be used, with exceptions listed in 6.6.2.
• For all other services not covered in (a) above, pipes manufactured in accordance with Class B requirements of 01-SAMSS-333 should be used, with exceptions listed in 6.6.2.

Restrictions on ERW pipe usage:

• ERW pipe should not be used in the following applications:
• a) On-plot piping according to ASME B31.3 or ASME B31.1, except for firewater systems.
• b) ASME B31.8 Gas pipelines in sour or corrosive services (as defined in SAES-L-133) in locations Class 3 and Class 4 as defined in SAES-B-064.
• c) ASME B31.8 Gas pipelines within 500 meters of the battery limits of plants and permanently manned facilities.
• d) Grade X70 and above in sour service.
• e) Low-temperature service (below 0°C). f) Offshore applications.
• g) Backing Carbon Steel Material for Lined or Weld Overlayed Pipes.