High-Pressure Sour Service Ready: Haihao Group Dispatches ASTM A105N Welded Branch Outlets to UAE
Haihao Group has completed the dispatch of a specialized consignment of heavy-wall forged branch connections engineered for an oil and gas infrastructure expansion project in the United Arab Emirates (UAE). Manufactured strictly to MSS SP-97 standards, these integrally reinforced butt-weld branch outlets feature normalized carbon steel chemistry designed to maintain structural integrity under severe pressure loads and sour service environments.
Delivery Manifest & Technical Specifications
Sourcing from a certified MSS SP-97 ASTM A105N branch outlet manufacturer guarantees exact contour machining, flawless bevel preparation, and total material compliance. Below is the specification manifest for the UAE delivery:
4″ x 1″ Welded Branch Outlet: Run SCH 120 x Branch SCH 160 | Butt Weld (BW) | Normalized ASTM A105N | Standard: MSS SP-97 | Compliance: NACE MR0175 / ISO 15156.
4″ x 1″ Welded Branch Outlet: Run SCH 160 x Branch SCH 160 | Butt Weld (BW) | Normalized ASTM A105N | Standard: MSS SP-97 | Compliance: NACE MR0175 / ISO 15156.
8″ x 2″ Welded Branch Outlet: Run SCH 120 x Branch SCH 160 | Butt Weld (BW) | Normalized ASTM A105N | Standard: MSS SP-97 | Compliance: NACE MR0175 / ISO 15156.
10″ x 1″ Welded Branch Outlet: Run SCH 160 x Branch SCH 160 | Butt Weld (BW) | Normalized ASTM A105N | Standard: MSS SP-97 | Compliance: NACE MR0175 / ISO 15156.
10″ x 2″ Welded Branch Outlet: Run SCH 120 x Branch SCH 160 | Butt Weld (BW) | Normalized ASTM A105N | Standard: MSS SP-97 | Compliance: NACE MR0175 / ISO 15156.
10″ x 2″ Welded Branch Outlet: Run SCH 160 x Branch SCH 160 | Butt Weld (BW) | Normalized ASTM A105N | Standard: MSS SP-97 | Compliance: NACE MR0175 / ISO 15156.
20″ x 2″ Welded Branch Outlet (Heavy Wall): Run 33.32 mm THK x Branch SCH 160 | Butt Weld (BW) | Normalized ASTM A105N | Standard: MSS SP-97 | Compliance: NACE MR0175 / ISO 15156.
Normalized Metallurgy & Sour Gas Resistance
Upstream oil and gas distribution lines handling wet hydrogen sulfide(H2S) demand strict resistance to sulfide stress cracking (SSC) and hydrogen-induced cracking (HIC). Every component forged by our MSS SP-97 ASTM A105N branch outlet manufacturer facility undergoes full normalization heat treatment to refine grain structure and lower residual stresses.
To ensure long-term durability on heavy-wall header connections—including run pipe wall thicknesses up to 33.32 mm and SCH 160 branches—all fittings were forged under strict metallurgical controls, maintaining hardness limits within NACE MR0175 / ISO 15156 guidelines.

MSS SP-97 ASTM A105N welded branch outlets manufactured by Haihao Group
Precision Machining & Quality Assurance
As an established MSS SP-97 ASTM A105N branch outlet manufacturer, Haihao Group enforced rigid quality control protocols prior to export packaging:
Contour Machining: The saddle contours were precision-machined on CNC lathes to ensure an exact fit onto run pipe outer diameters ranging from 4″ up to 20″, eliminating field fit-up gaps.
Bevel Inspection: All branch butt-weld ends (SCH 160) were gauged for bevel angle accuracy, land thickness, and surface defect-free condition.
Material Certification: Complete EN 10204 3.1 Mill Test Certificates were provided, covering chemical heat analysis, mechanical tensile and impact testing, normalization charts, and NACE compliance documentation.
Partnering with a reliable MSS SP-97 ASTM A105N branch outlet manufacturer simplifies high-pressure pipeline procurement and guarantees code compliance in the field.
Request Your Technical Quotation Today
Require certified NACE MR0175 forged fittings, heavy-wall MSS SP-97 branch connections, or custom carbon steel piping components for your energy assets? Partner with an industry leader. Contact the Haihao Group commercial team today for rapid quotations and engineering support.
