ASTM A234/A420/A350 Carbon & Low-Temperature Steel Pipe Elbows

• Customization: Available
• After-sales Service: as Per Client′s Design
• Warranty: 1 Years
• Model NO.: ASTM A234/A420/A350 Carbon Steel Pipe Elbows
• Connection: Flange
• Shape: Round/Customized
• Head Code: Round
• Angle: 90 Degree
• Wall Thickness: Sch5s - Schxxs(1mm - 150mm)
• Material: Carbon Steel
• Technics: Forged/ Hot Press
• Certification: ASME, ANSI, DIN, JIS, BS, GB, GS, KS, API
• Color: Sliver/Black
• Materials: Carbon Steel (A234 Wpb), Low-Temp Carbon Steel (A4
• Grade: A234 Wpb, A420 Wpl6, A350 Lf2
• Application: Petroleum, Gas, Chemical,Metallurgy, Construction
• Production Process: Seamless or Welded
• Stock: Size Can Customized
• Temperature: A234: -29°c to 425°c
• Tolerance: +/-0.5mm, +/-0.5mm
• Used: Factory, Pipe,Tube,Machinery Parts
• Packing: Standard Export Packing
• Anglemolding Technics: Forged, Thread
• Pressure: Class 150 to 2500 (ASME B16.34)
• Delivery: by Sea, by Air and by Express
• Delivery Time: 10-30 Working Days
• Feature: High Durability
• MOQ: 1
• Transport Package: Cartons, Pallet, Cases
• Specification: Customed
• Trademark: EZS
• Origin: China
• Production Capacity: 10, 000, 000 Kgs/Year

Product Description

Specification:

 

product	ASTM A234/420/350 SCH40/SCH80/SCH160/XXS 45/90D Carbon Steel Seamless Bend Elbow
Material	ASTM A234 WPB, ASTM A420 WPL6, WPL3; ASTM A105 WPB; ASTM A106; ASTM A350 LF2, DIN St37, St45.8, St52.4,St.35.8,St.35.8/I ASTM A333 GR.6, ASTM A860 WPHY 70, WPHY 65, WPHY 60, WPHY 52,WPHY 46,WPHY 42, API 5L GRB, X60, X65, X42,X52
Range	ELBOW, TEE, COUPLING, HALF COUPLING, CAP, PLUG, BUSHING, UNION, OUT-LET, SWAGE NIPPLE, BULL PLUG, REDUCER, INSERT AND HEX NIPPLE, STREET ELBOW, BOSS, ETC.
Contact type	Socket-weld, Screwed ( NPT/ BSP), Butt weld
Dimension	ASME B 16.11-2009, MSS-SP-79, 83, 95, 97, BS 3799-1974
Pressure	Screwed end:2000lb/3000lb/6000lb; Socket weld end:3000lb/6000lb/9000lb;
Butt weld end	SCH40/SCH80/SCH160/XXS
Place of origin	China
Package	Plastic bag and Cartons then Pallet
Delivery	By sea, By air and By express
Lead time	withinn 35-45 days after confiming the normal order

1. Standard

• Primary Standards:

  • ASTM A234: Covers carbon/alloy steel fittings for moderate/high-temp service (e.g., WPB).

  • ASTM A420: Specifies low-temp carbon steel fittings (e.g., WPL6).

  • ASTM A350: Requires notch toughness testing for forged fittings (e.g., LF2).

• Dimensional Compliance: ASME B16.9 (Butt-Weld) / ASME B16.11 (Threaded/Socket-Weld).

2. Dimensional Specifications

Parameter	Tolerance (ASME B16.9)
OD Tolerance	±1.5% of Nominal OD
Center-to-End (90° Elbow)	±1.5 mm (≤24") / ±3 mm (>24")
Wall Thickness Tolerance	±12.5% (Min. WT ≥87.5% Nominal)

3. Performance Advantages

• Low-Temperature Toughness: A420 WPL6 meets -45°C Charpy impact requirements for cryogenic LNG/ammonia systems.

• Sour Service Compliance: A350 LF2 aligns with NACE MR0175 for H2S environments.

• High-Temp Stability: A234 WPB maintains strength up to 425°C (steam/oil pipelines).

4. Quality Assurance

• Chemical Composition (Key Grades):

  Grade	C	Mn	P	S
  WPB	≤0.30%	0.29-1.06%	≤0.050%	≤0.058%
  WPL6	≤0.30%	0.50-1.35%	≤0.035%	≤0.040%
  LF2	≤0.30%	0.60-1.35%	≤0.035%	≤0.040%

• Mechanical Properties:

  Grade	Tensile (MPa)	Yield (MPa)	Hardness (HB)
  WPB	≥415	≥240	≤197
  WPL6	≥435	≥315	≤197
  LF2	≥485	≥250	≤197

5. Application Scenarios

• Oil & Gas: Pipeline directional changes (A234 WPB).

• Cryogenic Systems: LNG terminals, refrigeration plants (A420 WPL6).

• Sour Gas Fields: H2S-rich environments (A350 LF2).

6. Packaging and Delivery

• Export Packaging: Wooden crates with edge protectors + waterproof wrapping.

• Certification: EN 10204-3.1/3.2 Inspection Certificates + NDE Reports.

 

 

 

 

Detailed Photos

 

 

 

Packaging & Shipping