Description

Specification

1. ASTM A333 Chemical Composition Requirements

*For Grade 1 and 6, each reduction of 0.01% C below 0.30%, an increase of 0.05 % Mn above 1.06 % would be permitted to a max. of 1.35%.
*For Grade 6, the limit for columbium may be increased up to 0.05 % on heat analysis and 0.06 % on product analysis.
*Generally, the carbon equivalent C.E = [C + Mn/6 + (Cr + Mo + V)/5 + (Ni + Cu)/15] shall not exceed 0.43% by heat analysis.

2. ASTM A333 Mechanical Properties

*The elongation values are furnished on the basis of standard round 2 inch or 50 mm(or 4D) specimens.
*Elongation of Grade 11 is for all walls and small sizes tested in full section.

3. Charpy V-notch Impact Tests

*A denotes minimum average notched bar impact value of each set of three specimens.
*B denotes minimum notched bar impact value of one specimen only of a set.

* Impact tests specified for temperatures lower than 70 °F [20 °C] should be made with precautions.

Standard

A333 / Standard Specification for Seamless and Welded Steel Pipe for Low-Temperature Service

Process

Hunan Dingchen Pipe Industry Co., Ltd. is a professional factory integrating steel pipe, pipe fittings and valve production and R&D. The factory also covers various types of pipes and pipe fittings valve inventory, logistics and related supporting services, and is committed to providing global customers with one-stop services for pipes, pipe fittings and valves. The registered capital is 108.8 million yuan, and it is located in the hometown of the great man-Jingwei Road, Jiuhua Industrial Park, Xiangtan, Hunan. After years of unremitting efforts and innovative business models, it has created product brands and effectively promoted industrial development. It has become a well-known comprehensive steel industry manufacturer in China and a world-leading comprehensive service provider for pipes, pipe fittings and valves. By the end of 2023, the company's total assets exceeded more than 2 billion yuan, annual operating income exceeded more than 500 million yuan, and the total number of employees was more than 300. It has 3 subsidiaries, 5 production bases, and three R&D centers. It is one of the top 500 private enterprises in China, a national technology innovation enterprise, a national key high-tech enterprise, a national green demonstration factory, and a national AAA-level quality credit enterprise.

The factory has leading domestic and foreign steel pipe production and R&D technology, advanced and complete testing facilities and equipment. The factory strictly follows the ISO 9001 quality management system for on-site management and has successively obtained ISO 9001, ISO 14001, ISO 45001, AAA credit rating certification etc. The products have been inspected and recognized by international authoritative third-party organizations such as SGS, BV, MOODY, TUBOSCOPE etc.

Sindara Steel Co., Ltd. is a professional export subsidiary corporation of Hunan Dingchen Pipe Industry Co., Ltd., dedicated to providing pipe, pipe fittings and valve product services to global customers. Over the years, Sindara Steel Company's products have been widely used in urban pipeline construction, construction, pipeline transportation, coastal and port construction, oil and gas extraction, food and medicine factory construction and other engineering projects. Partners are spread across dozens of countries and regions in Southeast Asia, the Middle East, Europe, Africa, South America, and Oceania, providing products and services to many Fortune 500 companies oil, gas and EPC companies, such as: PEMEX, EGPC, NNPC, etc.

Sindara Steel always adheres to the business beliefs of quality first and customer-centric, and strives to meet customer requirements and pursue win-win cooperation with customers. Sindara Steel is your trusted one-stop supplier of pipes and pipe accessories.