alloy steel pipes |
| 03-17 09:44:21 来源： 作者： |
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alloy steel pipes Inquiry (采购产品): alloy steel pipes Dear Sir, Please note that we are in market with the following request for TURKEY HOT FINISHED SEAMLESS TUBES FOR PRESSURE VESSELS Grade : 34CrMo4 according to DIN 17204 (or equivalent ASTM) Outer Diameter : 229 MM ( +/-1 %) Wall Thickness : 5,75 MM (-0/+31%) Length : Multiple of 1,68 m. Quantity : 10000 meters QUALITY Molten Steel : Al killed Certificate : EN 10204 3.1.B Final Inspection : EN 10204 3.1.C in presence of TUV RHEINLAND Non destructive control : Ultrasonic Test according to SEP1915 Mechanical tests will be done on samples at simulated heat treatment conditions oil quenching at 880°C /30 minutes and tempering at 650 C/30 minutes . DIN 1629 to be applied unless otherwised. Chemical Composition in conformity with EN 1964-1. C : 0,30-0,37 % Mn : 0,60-0,90 % Si : 0.10- 0,40 % P : 0,02 % Max. S : 0,02 % Max. P+S : 0.03 % Max. Cr : 0,90 -1,20 % Mo : 0,15-0,30 % Ni : 0,30 % Max. Cu : 0,30 % Max. V+Nb+Ti+B+Zr : 0.15 Max. Yield Strength : 770 MPa Min. Tensile Strength : 900 MPa Min. Elongation : 14% Min. Ends : Square cut Straigtness : Deviation 2 mm/m Tightness : Without hydrostatic test Packing : Burdens 3000 Kg. max with 4 iron strips, Best regards, Dan Nicolescu CRIMSON GROUP 204, Butler Avenue Providence RI 02906 US Ph/Fax: +1-401-270-4164 E-mail: dnicolescu@cox.net **** Hidden Message ***** Dan Nicolescu 204, Butler Avenue Providence, RI 02906 USA Company: CRIMSON GROUP Title: Director Phone: 401-270-4164 Fax: 401-270-4164 E-mail: dnicolescu@cox.net **** Hidden Message ***** dnicolescu@cox.net |
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