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China, Chinese ASTM A193 B7 Alloy Steel Round Bar / A193 B7 Quenched and Tempered Steel Round Bars1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
Steel ProductsSteel Round BarASTM A193 Round BarASME II SA193 Grade B7
Laiwu Xincheng Metal Co., Ltd.
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Product Description ASTM A93 B7 Alloy Steel Round Bar / A193 B7 Quenched and tempered steel round barsASTM A193 Grade B7 Chromium Molybendum steel, normally AISI 4140, heat treated to 28-32Rockwell Hardness, 125,000 PSI tensile strength, 105, 000 PSI yield. It will hold it's strength to 1000 degrees F.ASTM A193 Grade B7 Threaded Rod is a kind of high strength and heat resistant threaded rod manufactured from 4140/4142 quenched and tempered alloy steel for high temperature or high pressure service, used by the plumbing and contracting trade in maintenance departments to secure pressure tanks, valves, and flanges.1.A193 B7 round bar Chemical composition: (raw material aisi 4140 )GradeCSiMnPSCrMoSAE 41400.37-0.490.15-0.350.65-1.1Max0.035Max0.040.75-1.200.15-0.252.A193 B7 Round Bar Properties:Tensile StrengthYield StrengthElongationReduction AreaHardnessMpaMpA%%HRCmin860min720min12min50max353.Sizes of A193 B7 QT steel bars we can supply :Hot rolled steel round bar :M12-M310Hot Rolled & QT (Quenched and tempered): M12-M120Cold Drawn&QT (Quenched and tempered):M6-M120Peeled+QT(Quenched and tempered):M20-M1204.A193 B7 QT bars packing : surface oiled+ Woven cloth 5.Straightness of QT bars: Max 1mm/m (important )6.Payment terms: T/T or L/ C(1)30% paid by T/T and rest 70% by T/T upon the copy of B/B.(2)100% irrevocable L/C at sight7.Delivery time:within 7 days after your deposit or L/C.8.Mark: including steel material, heat No., pieces, weight, date and so on.9.Quality control1.Process for Steel round barBlast Furnance→ Molten Iron Pretreatment→Converter→LF→VD/RH→ContinuousCasting→Hot Rolling(KOCKS)→ Heat Treatment→ UT Inspection→Finish ProductEAF→LF→VD/RH→ Continuous Casting→Hot Rolling(KOCKS)→ Heat Treatment→ UT Inspection→ Finish Product2.Grain Sizes:5-83.Surface condition: The surface of the bar shall be free cracks, scar and wrinkles at affect the use of the billets. 4.The mill test certificate shall show the chemical composition, and it is guaranteed that the chemical composition shall be within the limit stipulated in the contract
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