Carbon Steel Pipe Fitting · 45° Elbow
Carbon Steel 22mm 45° Butt-Weld Elbow
Push-molded from seamless or welded carbon steel pipe (also referred to as hot-push or hot-formed 45° elbow). Manufactured to ASTM A234, ASTM A403 and GB/T 12459 - covering seamless sizes 1/2"–24" (21.3mm–610mm) and welded sizes up to 3000mm OD. Built for oil & gas, chemical, power and construction piping systems.
*Standard lead time; peak season up to 30 days.
Technical Specifications
Product Specifications
Dimension Reference
Size Explorer
Select a size from the dropdown or search by NPS/DN to view all dimensions instantly.
or type in the search box
Tip: Type "DN200" or "8" in the search box to find any size instantly.
Why Buyers Choose This Elbow
Built for Performance
Push-Molded Forming
Formed from seamless or welded pipe by hot-push molding - the process maintains more even wall thickness through the bend than stamped elbows, reducing thin-spot risk at the outer radius.
Dual Seamless + Welded Coverage
Seamless production covers 1/2"–24"; welded extends up to 3000mm OD. One supplier for both standard and oversized specifications.
Multi-Standard Compliance
Manufactured to ASTM A234, ASTM A403 and GB/T 12459. MTC and inspection reports provided with each shipment.
Configuration Guide
Seamless vs. Welded VS
Both use butt-weld connections. Click to compare configurations with product images.
Seamless Configuration
Welded Configuration
Not sure which to specify? Send your NPS and pressure class and we'll confirm within one business day.
Industry Use Cases
Application Scenarios
This 45° butt-weld elbow is deployed across industrial piping systems where directional changes are needed without gasketed leak points. The 45° angle provides a gentler shift than 90° elbows, reducing pressure drop and turbulence.
The push-molded forming process ensures consistent wall thickness, critical for pressure cycling, thermal expansion, or corrosive media applications.
Petroleum & Chemical Processing
Butt-weld connection avoids gasketed leak points, reducing maintenance and fugitive emission risks in refinery environments.
Power & Steam Systems
ASTM A234 material supports elevated-temperature service per the standard's design tables for boiler and steam routing.
Water Treatment & Municipal Piping
Large-diameter welded elbows route trunk mains around obstacles, reducing potential leak points across long-distance conveyance.
Construction & Structural Piping
Small-bore seamless sizes (1/2"–2") keep routing tight in mechanical rooms and riser shafts.
Related: Carbon Steel Elbow · ASTM A234 WPB Elbow
Custom Manufacturing
OEM / ODM Support
Material grade, dimension standard, marking and packaging configured to your project requirements.
Requirement Discussion
Standard, size range, quantity, delivery
Solution Design
Drawing/spec confirmation
Sample Confirmation
Pre-production approval
Batch Production
Push-molding with in-process QC
Inspection & Delivery
Final QC, docs, loading
Manufacturing Base
Factory Strength
Tianjin Baode Steel Co., Ltd. ISO 9001, ISO 14001, ISO 45001 certified - AAA Credit Enterprise. Full scans on our Certificate page.
Inspection Protocol
Quality Control Process
Five-stage inspection pipeline - hover each step to view details.
Analysis
Spot-Check
(UT/RT)
Testing
Final Check
Delivery & Support
Logistics & After-Sales
Common Questions
Frequently Asked Questions
What sizes does the 22mm 45° elbow cover?
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Seamless: NPS 1/2"–24" (OD 21.3–610mm). Welded: up to 3000mm OD. See Size Explorer above for full dimensions.
What material standards do you manufacture to?
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ASTM A234, ASTM A403 and GB/T 12459. MTC provided with every shipment.
Do you provide ISO certification for customs?
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Yes - ISO 9001, ISO 14001, ISO 45001 and AAA Credit Enterprise. See Certificate page.
What is the MOQ and lead time?
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MOQ: 1 piece. Lead time: 15 days standard, up to 30 days peak season.
How is this elbow packed for export?
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Wooden cases / pallets. 20GP ≈ 20 cases (18–22t); 40HQ ≈ 40 cases (26–28t).
What warranty applies?
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1-year from delivery, covering manufacturing defects. Excludes improper operation/installation.
Can you produce custom specifications (OEM/ODM)?
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Yes. Custom material grade, dimension standard, marking and packaging. See OEM/ODM section or submit here.
Seamless or welded - which should I specify?
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1/2"–24": seamless. Beyond 24" up to 3000mm: welded. Send NPS for confirmation.
Need a Quote for a Specific Size or Standard?
Send your NPS, pressure class and target standard - we'll confirm within one business day.
You may also need: 90° LR Elbow · A234 WPB Elbow · All Elbows
Technical data is for reference only. Confirm specifications before purchase.
Tianjin Baode Steel Co., Ltd assumes no liability for misuse or misapplication of products.
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