We know cracked pipeline welds can halt production, so we mobilize within an hour with our 24-hour mobile welding truck. Our mobile welding in Des Moines, IA, delivers fast repairs, minimizing downtime.
McMahan Industrial Services offers a full range of services, including mobile welding. We handle heat-affected zone prep, preheating to 150°C, and AWS A5.9 E7018 welding to restore strength efficiently.
Cracked Welds on Pipelines
Cracked welds on pipelines are primarily caused by thermal stress, cyclic loading, and corrosion fatigue.
Solution: Emergency Mobile Welding Repair
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Pre‑Repair Inspection: ultrasonic phased‑array (ASTM E2375) to quantify crack geometry and magnetic particle testing (ASTM E1444) for surface defects.
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Repair Procedure:
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Preparation: grind to remove heat‑affected zone (HAZ) to 1.5 × crack depth; clean with solvent.
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Fit‑up: Align with precision clamps; pre‑heat to 150°C (ASTM A272).
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Welding: use AWS A5.9 E7018 filler; interpass temperature ≤ 200 °C; deposition rate 0.5 kg / min.
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Post‑Weld Heat Treatment: 620 °C for 1 h (ASTM A573).
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Verification: Repeat ultrasonic scan; confirm no residual stress > 30 MPa (ASME B31.3).
Performance Outcomes
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Repair Time: an average of 4 h per 10 ft pipe segment (McMahan Mobile Welding, 2024).
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Downtime Reduction: 65 % vs. on‑site shutdowns.
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Cost Savings: $1,200/hour labor avoided; overall repair cost $4,800 per segment.
Additionally, utilizing mobile welding services can enhance efficiency and further reduce operational downtime.
Rapid On‑Site Plasma Welding
Production delays are primarily caused by structural weld failures, resulting in significant downtime costs of $1,200 per hour, as observed in Iowa manufacturing.
Notably, ASTM A36 steel has a tensile strength of 400 MPa, and the presence of weld defects can decrease its load capacity by 30%.
Solution: Rapid On‑Site Plasma Welding
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A portable plasma cutter (30 A, 60 V) achieves a 0.8 mm / s cut speed on 10 mm steel.
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Heat‑affected zone (HAZ) limited to ≤ 1.2 mm, preserving base metal strength per ASTM E8/E8M
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Mobile unit travel time: ≤ 45 min within a 60‑mile radius of Norwalk, IA
Implementation Metrics
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Weld completion time: 2 h for 10 m structural joint (vs. 6 h off‑site)
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Post‑weld tensile strength: 390 MPa (98 % of base material) – verified by ASTM E8
Outcome
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Production restored within 3 h of the request, saving $3,600 per incident.
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95 % on‑site repair success rate (2023‑2024 data)
Contact: 877‑731‑3193 | akiger@mcmahanindustrial.com | 7269 IA‑28, Norwalk, IA 50211.
24‑Hour Response Trucks
Problem identified includes delayed downtime caused by inadequate emergency welding coverage, with an average unplanned shutdown cost in Iowa manufacturing at $12,500 per hour.
The standard response time for on-site welding is 4 hours, which exceeds the acceptable mean time to repair (MTTR) of less than 2 hours for critical equipment.
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Fleet Composition: 3 trucks, each equipped with a 240 A MIG/Stick welder, plasma cutter (2 kW), and 2‑ton crane.
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Response Metric: 1 h dispatch, 1 h on‑site arrival (ASTM E8‑22 compliant weld quality).
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Performance: 98% of emergency jobs completed within 2 hours, reducing average downtime to $5,000/hour (30% reduction).
Key Data Points
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Service Area: Des Moines, IA; Norwalk, IA; surrounding counties.
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Compliance: OSHA 1910.252 (Welding, Cutting, and Brazing).
Affordable Mobile Welding in Des Moines, IA!
Don’t wait—contact McMahan Industrial Services now and experience the difference of a local, trusted partner for all your mobile welding needs.
Phone: 877‑731‑3193
Email: akiger@mcmahanindustrial.com
Address: 7269 IA‑28, Norwalk, IA 50211
Explore Des Moines, IA, attractions.
Ever wonder what makes Des Moines a hidden gem for weekend adventurers?
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Des Moines Art Center: creative inspiration
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Principal Riverwalk: scenic, portable-
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East Village: vibrant shops, lively cafés
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State Fairgrounds: seasonal fun, community spirit
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