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Yuhong Group Co.,Ltd

  • China,Ningbo ,Zhejiang
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China ASME SA350 LF2 Class 1 Forged Carbon Steel Nozzle Cover Flange for Piping
China ASME SA350 LF2 Class 1 Forged Carbon Steel Nozzle Cover Flange for Piping

  1. China ASME SA350 LF2 Class 1 Forged Carbon Steel Nozzle Cover Flange for Piping
  2. China ASME SA350 LF2 Class 1 Forged Carbon Steel Nozzle Cover Flange for Piping
  3. China ASME SA350 LF2 Class 1 Forged Carbon Steel Nozzle Cover Flange for Piping
  4. China ASME SA350 LF2 Class 1 Forged Carbon Steel Nozzle Cover Flange for Piping

ASME SA350 LF2 Class 1 Forged Carbon Steel Nozzle Cover Flange for Piping

  1. MOQ: 500KGS
  2. Price: Negotiable
  3. Get Latest Price
Payment Terms L/C, T/T
Supply Ability 800 Tons/ Month
Delivery Time 15-20 Days
Packaging Details Ply-wooden Case /Iron Case
​Standard​ ASME SA350
Grade​ LF2 Class 1
Material Type​ Forged Carbon Steel
Application​ Low Temperature Piping Systems
Face Type​ Raised Face (RF) / Ring Type Joint (RTJ)
Size Range​ Custom size
Brand Name YUHONG
Model Number ASME SA350 LF2 Class 1
Certification ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Place of Origin CHINA

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  1. Product Details
  2. Company Details

Product Specification

Payment Terms L/C, T/T Supply Ability 800 Tons/ Month
Delivery Time 15-20 Days Packaging Details Ply-wooden Case /Iron Case
​Standard​ ASME SA350 Grade​ LF2 Class 1
Material Type​ Forged Carbon Steel Application​ Low Temperature Piping Systems
Face Type​ Raised Face (RF) / Ring Type Joint (RTJ) Size Range​ Custom size
Brand Name YUHONG Model Number ASME SA350 LF2 Class 1
Certification ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008 Place of Origin CHINA
High Light ASME SA350 LF2 forged flangecarbon steel nozzle cover flangepiping system forged steel flange

ASME SA350 LF2 Class 1 Forged Carbon Steel Nozzle Cover Flange for Piping Systems

 

​​YUHONG GROUP​​ specializes in manufacturing ​​ASME-certified forged steel flanges​​ for critical low-temperature applications. Our ​​ASTM A350 LF2 Class 1 Forged Carbon Steel Nozzle Cover Flanges​​ are engineered to deliver reliable performance in cryogenic piping systems operating as low as ​​-46°C​.


​​Chemical Composition of ASTM A350 LF2 (UNS K03011) Forged Steel Flange​

 

​Element​ ​Requirement (%)​ ​Notes​
​Carbon (C)​ ≤0.30 Controlled for weldability
​Manganese (Mn)​ 0.60-1.35 Enhances strength and toughness
​Phosphorus (P)​ ≤0.035 Minimizes brittleness
​Sulfur (S)​ ≤0.040 Improves machinability
​Silicon (Si)​ 0.15-0.30 Deoxidizer and strength enhancer
​Nickel (Ni)​ ≤0.40 Part of the alloy sum restriction
​Chromium (Cr)​ ≤0.30 Part of the Cr+Mo sum restriction
​Molybdenum (Mo)​ ≤0.12 Part of the Cr+Mo sum restriction
​Copper (Cu)​ ≤0.40 Part of the alloy sum restriction
​Columbium (Cb)​ ≤0.02 Controlled for weldability
​Vanadium (V)​ ≤0.08 Grain refinement control

Tensile Properties for ASTM A350 LF2 Class 1/2

 

​Property​ ​Requirement for LF2 Class 1 & 2​ ​Notes​
​Tensile strength​ 70-95 ksi [485-655 MPa] Range applies to both Class 1 & 2
​Yield strength, min​ 36 ksi [250 MPa] By 0.2% offset or 0.5% extension method
​Elongation (standard round specimen)​ 22% min in 4D gauge length For full-section testing
​Elongation (strip specimen)​ 30% min in 2 in. (50 mm) For thickness ≥7.94 mm
​Reduction of area, min​ 30% Applies to round specimens only

Impact Test Temperature for ASME SA350

 

​Grade​ ​Test Temperature, °F [°C]​
LF1 -20 [-29]
LF2, Class 1 -50 [-46]
LF2, Class 2 0 [-18]
LF3, Classes 1 and 2 -150 [-101]
LF5, Classes 1 and 2 -75 [-59]
LF6, Classes 1 and 2 -60 [-51]
LF6, Class 3 0 [-18]
LF9 -100 [-73]
LF787, Class 2 -75 [-59]
LF787, Class 3 -100 [-73]

​​Key Advantages of ASTM A350 LF2 Class 1 Forged Carbon Steel Nozzle Cover Flange​

​​1. Certified Low-Temperature Performance​​

​​Guaranteed impact toughness​​ at -46°C (-50°F) per ASTM A350 Table 4

​​Class 1 designation​​ ensures superior performance in cryogenic service compared to Class 2

​​2. Optimized Material Composition​​

​​Controlled carbon content (≤0.30%)​​ enables excellent weldability without preheat requirements

​​Manganese content (0.60-1.35%)​​ provides an optimal balance of strength and toughness

​​3. Manufacturing Reliability​​

​​Forged construction​​ eliminates defects and ensures structural integrity under pressure

​​Full traceability​​ with heat number marking and EN 10204 3.1 certification available

​​4. Quality Verification​​

​​100% non-destructive testing​​ (PT/MT/UT) available upon request

​​Third-party inspection​​ acceptance (SGS/BV/DNV)

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory
  • Business Type:

    Manufacturer,Distributor/Wholesaler,Importer,Exporter,Trading Company,Seller,Other

  • Year Established:

    2007

  • Total Annual:

    50M-70M

  • Employee Number:

    50~850

  • Ecer Certification:

    Verified Supplier

  YUHONG HOLDING GROUP is one of the largest Procurement, Engineering & Contracting Group companies in China. Our group branch company and factory have been already approved by : ABS, LR, DNV, GL, BV, CCS, KR,  PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9...   YUHONG HOLDING GROUP is one of the largest Procurement, Engineering & Contracting Group companies in China. Our group branch company and factory have been already approved by : ABS, LR, DNV, GL, BV, CCS, KR,  PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9...

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  • Yuhong Group Co.,Ltd
  • 20TH FLOOR,NO.1 NEW WORLD BUILDING ,NO.1018 MINAN ROAD,YINZHOU DISTRICT, NINGBO CITY, ZHEJIANG PROVINCE, CHINA
  • https://www.steelseamlesspipe.com/

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