Specifications: diameter: 320 to 127 mm thickness: 0.4 to 12.7 mm Length: 6 m above, and, in accordance with customer demand, supply and other specifications of steel pipe

carbon steel blind flange AND flange specifications


1)carbon steel forged blind flange 
2)ASTM A105 ,DIN ST37.2,Q235 ,20#,20Mn ,16Mn 

(1)All  the  products  mainly  export  to  European  Market ,Japan, Korea&UAE  market ect.

1)Name: carbon  steel  flange  &forged  flanges

2)Materials : ASTM  A105,DIN ST37.2, ASTM A182- F304 F304L, F316,F316L,F321 ,ASTM A350 ,ASTM A181, S235 JRG2, 20#, 20Mn ,16Mn, CH2.8, C22.8

3)Rating :

  ANSI   150LBS   -  2500LBS

   DIN     PN6  -  PN160

    JIS     5K  -  30K

     HG    PN0.25  -  PN25     PN2.0   -   PN42.0


4)Specification: from 1/2"  to  80" (DN15   to  DN2000

5)Special  designavailable  as  the  requirements  of  customer

6)Certificates:  the  TUV  CERT  ,ISO9001 - 2000, WO , PED.

7)Standard: ANSI B16.5, B16.47, MSS, SP-44, AWWA, API, DIN, JIS, HG, GB, JG, BS.

8)All  the  flanges  are  according  to  the  ASTM, BS, DIN, JIS, EN, GB  and  customer's request

carbon steel blind flange

Flange with hydraulic flange specifications

∷ Flange Overview
Product Name: Hydraulic Flanges / Hydraulic Square Fflange
Dimensions: 3/8 "to 4"
Pressure Rating: PN10MPa, PN16MPa, PN21MPa, PN28MPa, PN35MPa
Material: Carbon steel: S25C, ASTM A105, 20 #, SGD4K; stainless steel: SUS304, SUS304L, SUS316, SUS316L, SUS321
Manufacturing process: cutting, heat treatment, forging, machining
Manufacturing standards: JB/ZQ4187-97, JB/ZQ4485-97, JB/ZQ4486-97, JB/ZQ4487-97, JB/ZQ4488-97, JB/ZQ4489-97
∷ Hydraulic Flange Standard No.
1. JB/ZQ4187-97A-type split high pressure flange;
2. JB/ZQ4187-97B-type split high pressure flange;
3. JB/ZQ4187-97C-type split high pressure flange;
4. JB/ZQ4187-97D-type split high pressure flange;
5. JB/ZQ4187-97E-type split high pressure flange;
6. JB/ZQ4187-97F-type split high pressure flange;
7. JB/ZQ4485-97 high pressure flange;
8. JB/ZQ4486-97 straight flange;
9. JB/ZQ4487-97 angle flange;
10. JB/ZQ4488-97 intermediate flange;
11. JB/ZQ4489-97 flange;
12 convex welded steel flanges (according JB/T82.1-94);
13 welded steel flange dimensions (PN = 6.3Mpa) (JB/ZQ4461-97);
14 welded steel flange dimensions (PN = 10Mpa) (JB/ZQ4462-97);
15 welded steel flange dimensions (PN = 15Mpa) (JB/ZQ4463-97);
16 welded steel flange dimensions (PN = 25Mpa) (JB/ZQ4464-97);
17 welded steel flange dimensions (PN = 31.5Mpa) (JB/ZQ4465-97);
18 welded steel flange dimensions (PN = 40Mpa) (JB/ZQ4466-97);
19 steel plate welded convex flange (according JB/T81-94);
20. Convex steel pipe flange cover (according JB/T86.1-94);
21 convex steel flange cover (PN = 6.3Mpa) (JB/ZQ4483-97);
22 convex steel flange cover (PN = 10Mpa) (JB/ZQ4484-97
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