China Tube For Mining And Drilling Seamless casing pipe is used to prevent borehole collapsing, which are widely used in geotechnical applications. Even though casing tube is not subject to the same stresses as drill rod, we apply the same care in design, manufacturing and quality assurance disciplines for all our tubular products. 聽 Dingxin鈥檚 seamless casing pipes are designed and produced according to industry standards as GB/T 9808, ISO 10097, DCDMA, etc., designations. We offer a range of alloy steel raw material with different heat treatments to meet customers鈥?diversified requirements in cost and application. 聽 Product Details 聽 Product Name NW HW PW drill casing pipe 4130 1541 30CrMo 40Mn2 N80 R780 J55 StandardGB/T 9808, ASTM A519, EN10305-1 Material4130, 1541, 30CrMo, 40Mn2, N80, R780, J55 DimensionOD: 16-245mm, WT1-32mm LengthCut to length according to customers鈥?requirements Straightness0.5/1000mm max Delivery ConditionNormalized (+N), Stress Relieved Annealed (SRA) CertificateISO 9001, IATF 16949 ApplicationsDrill casing pipe 聽 Chemical Composition 聽 Steel GradeCSiMnPSCrMoNiCuAlV 41300.28-0.330.15-0.350.40-0.60鈮?.040鈮?.0400.80-1.100.15-0.25聽聽聽聽 15410.36-0.44聽1.35-1.65鈮?.040鈮?.050聽聽聽聽聽聽 N800.34~0.380.20~0.351.45~1.70鈮?.020鈮?.015鈮?.15聽聽聽聽0.11~0.16 R780聽聽聽鈮?.040鈮?.040聽聽聽聽聽聽 J550.34~0.390.2~0.351.25~1.5鈮?.020鈮?.015鈮?.015聽鈮?.2鈮?.2鈮?.02聽聽 Casing Tube Dimensions 聽 Spec.OD (mm)ID (mm) AW casing pipe57.148.4 BW casing pipe73.060.3 NW casing pipe88.976.2 HW casing pipe114.3101.6 PW casing pipe139.7127 聽 Mechanical Properties 聽 Steel GradeDelivery ConditionTensile Strength (Mpa)Yield Strength (Mpa)Elongation (%) R780+N78052015 J55+N65537911 N80QT鈮?89552~758- 4130+SR69055012 1541+SR82073015 聽 Advantages 聽鈼?Tight dimensional tolerance, low eccentricity 鈼?High straightness 鈼?Smooth outer and inner surface 鈼?Well-balanced mechanical properties 聽 Dingxin Will Provide 聽鈼?Extensive dimensional range: customized sizes are available upon request 鈼?Dedicated service: tailored service to meet the specific need of customers 鈼?Technical assistance and product development 鈼?Just-in-time delivery: our in-house and fully integrated manufacturing process is highly efficient, shortening the delivery time 鈼?Mill test certificates including chemical composition, mechanical properties, grade, batch and heat number, straightness, etc. 聽 FAQ 聽 1. Q: Are you a trading company or manufacturer? 聽 聽 聽 A: We are a manufacturer and solution provider. Certified with ISO9001 IATF16949, Dingxin has 20 years鈥?experience in the production of seamless casing pipes. 聽 2. Q: How long is your delivery time? 聽 聽 聽A: Normally, it could be within 7 to 14 days if the requested tubes are in stock. Otherwise, the manufacturing cycle is around 30 to 45 days depending on the quantity and process. 聽 3. Q: What is your terms of payment 聽 聽 聽A: 30% advance payment, 70% T/T balance against the copy of B/L. 聽 4. Q: Can I get free samples? 聽 聽 聽A:聽Small samples in stock can be provided for free but customer need to pay the cost of freight. 聽China Tube For Mining And Drilling website:http://www.dingxinsteeltube.com/tube-for-mining-and-drilling/