Production standards and materials for Chinese pipe fittings

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Product Types, Product Specifications, Manufacturing Standards, Steel Grades

I. Steel Seamless Welded Fittings Series
20#, 10#, 25#; 16MM, 20G, 12CrMo, 12CrMoV, 16Mn, 15GMo, 1Cr18Ni9, 1Cr18Ni9Ti, 00Cr17Ni14Mo2
1. Elbows at 1/45 degree, 90 degrees, and 180 degrees
1. Pressure specifications: SCH5S–SCH160
2. Size specifications: DN15–DN600
Petroleum industry standards: SY7510-87, SHJ408-90
**Standard: GB12459-90
Sinopec standards: SH3408-96
Chemical industry standards: HGJ514-87
Power industry standards: GB88-1101
2. Concentric and eccentric reducers
3. Equal-diameter and unequal-diameter tees
4. Pipe caps

II. Steel Plate Welded Fittings with Seams
1. Elbows at 1/45 degree, 90 degrees
1. Pressure specifications: SCH5S–SCH80
2. Size specifications: DN350–DN1200
**Standard: GBl13401-92
Sinopec standards: SH3409-96
Chemical industry standards: HGJ514-87
American standards: ANSI B1609, B16.28
2. Concentric and eccentric reducers
3. Equal-diameter and unequal-diameter tees
4. Pipe caps

III. Forged Steel Socket Welded and Threaded Fittings Series
1. Elbows at 1/45 degree, 90 degrees
1. Pressure specifications: 2000LB (SCH40), 3000LB (SCH80), 6000LB (SCH160)
2. Size range: DN6–DN100, 1/8”–4”
**Standard: GB/T14383, GB/T14626
Sinopec standards: SH3410-96
Chemical industry standards: HGJ10-88
American standards: ANSI B16.11-1980
Japanese standards: JIS B2316
2. Concentric and eccentric reducers
3. Equal-diameter and unequal-diameter tees and crosses
4. Single and double socket collars
5. Socket weld and butt weld pipe seats, nozzles, branch base plates
6. Pipe caps, union joints
7. Plugs, threaded splices, internal and external threaded joints