News & Technical Articles

April 05, 2026 • 13 min read

Centrifugal, submersible, gear, diaphragm, screw & fire pumps — working principles, applications & 14-application selection table. Free guide.

April 03, 2026 • 10 min read

A193 B7 stud bolt specifications, mechanical properties, grades (B7, B7M, B8, B16), matching nuts, coatings & flange bolting guide. Request pricing.

April 03, 2026 • 10 min read

ASTM A193 B7/B7M/B16, A194 2H nuts, A320 L7 for low-temp. Flange bolting guide with fastener-to-service matching table. Request pricing.

April 02, 2026 • 11 min read

Elbows, tees, reducers, caps — butt weld & forged fittings. LR vs SR, concentric vs eccentric, material grades & how to order. With selection table.

April 01, 2026 • 11 min read

Weld neck, slip-on, blind, socket weld, threaded & lap joint flanges. RF vs RTJ, Class 150–2500, materials & how to specify. With comparison table.

March 31, 2026 • 11 min read

Seamless vs welded steel pipe comparison — strength, cost, pressure ratings, ERW vs LSAW vs SSAW, weld joint efficiency & selection guide. Free chart.

March 31, 2026 • 11 min read

API 5L line pipe grades, PSL1 vs PSL2 differences, chemical composition, mechanical properties & how to write a purchase order. Full spec tables.

March 30, 2026 • 12 min read

Carbon steel pipe grades, specifications, sizes NPS ½"–60", schedules, coatings (3LPE, FBE) & documentation checklist. Includes dimension table.

March 29, 2026 • 11 min read

Expansion joint types for piping — bellows configurations (single, universal, hinged, gimbal, tied), materials, selection guide & EJMA standards.