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JIS, Japanese Industrial Standards for steel

Japanese Industrial Standards specifies the standards used for industrial activities in Japan. The standardization process is coordinated by Japanese Industrial Standards Committee and published through Japanese Standards Association.
JIS G3429 Seamless steel tubes for high pressure gas cylinder.
 Seamless steel tubes for high pressure gas cylinder.
In the Meiji era, private enterprises were responsible for making standards. However, the Japanese government did have standards and specification documents for procurement purposes for certain articles, such as munitions. These were summarized to form an official standard old JES in 1921. During World War II, simplified standards were established to increase matériel output. The Industrial Standardization Law was enacted in 1949, which forms the legal foundations for the present Japanese Industrial Standards.
The Industrial Standardization Law was revised in 2004 and the  mark product certification system was changed. Standards are named like “ X 0208:1997″, where X denotes area division, followed by four digits (or five digits for some of the standards corresponding ISO standards) and the revision release year.
G – Ferrous Materials and Metallurgy
H – Nonferrous Materials and Metallurgy

MTC IN EN 10204.3

EN 10204:2004 is for metallic products-and this norm tell us things about Types of inspection documents. There are no material standards.
Mostly material is defined with its chemical composition and mechanical properties in a public standars like ISO, EN, JIS, ASTM etc.

JIS G3461

 Standard specifies the carbon steel tubes, hereinafter refered to as the tubes, used for exchanger heat on the inside and outside of the tube, such as water tubes, smoke tubes, superheater tubes, air preheater tubes, etc.

JIS G3445

JIS G3445 standard specifies the carbon steel tubes, hereinafter referred to as the thes, used for machinery, automobiles, bicycles, furniture, appliances and other machine parts.

JIS G3429, JIS G3429 standard specifies the seamless steel tubes

JIS G3429 standard specifies the seamless steel tubes, hereinafter referred to as the tube used for the manufacture of seamless steel gas cylinders specified in JIS B8230 and JIS B8241.

JIS G3454 STPG370, STPG410

JIS G3454 standard specifies the carbon steel pipes, hereinafter referred to as the pipes, used form pressure serive at an approximate maximum temperature of 350 cerus degree.

What is JIS?

Japanese Industrial Standards (JIS) specifies the standards used for industrial activities in Japan. The standardization process is coordinated by Japanese Industrial Standards Committee and published through Japanese Standards Association.

JIS Seamless Pipe

JIS seamless pipe is steel pipe that has been created by JIS and meets certain performance requirements. Manufacturers follow Japan Industrial Standards voluntarily. view the Tolerance of JIS seamless pipe

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ANSI/ASME B16.25 standard specification

ANSI/ASME B16.25 is the standard covers the preparation of butt welding ends of piping components to be joined into a piping system by welding. The standard includes the butt welding ends information of General scope, Welding Bevel designs, Preparation of inside diameter of welding ends and the tolerances involved. ANSI/ASME B16.25, Buttwelding Ends Following are the dimensions of the butt welding pipe ends according to ANSI B16.25. It includes requirements forwelding bevels, for external and internal shaping of heavy-wall components, and for preparation of internal ends (including dimensions and tolerances). Coverage includes preparation for joints with the following: (a) no backing rings (b) split or noncontinuous backing rings (c) solid or continuous backing rings (d) consumable insert rings (e) gas tungsten arc welding (GTAW) of the root pass Details of preparation for any backing ring must be specified when ordering the component. ANSI/ASME B16.

Large diameter elbow

Large diameter elbow is curved connecting pieces that join straight lengths of pipe, commonly at a 90° or 45° angle, allowing obstructions to be avoided in plumbing, ventilation, welding, and automotive applications. ASME B16.9 Standard covers overall dimensions, tolerances,ratings, testing, and markings for factory-made wrought buttwelding fittings in sizes NPS 1⁄2 through NPS 48 (DN 15 through DN 1200). Size range: 20 "-62" Inch Wall thickness: Sch5-Sch160 XXS Material: Carbon steel: ASTM A234 WPB, WPC, ASTM A420 WPL1, WPL3, WPL6, WPHY42, 46, 52, 56, 60, 65, 70 Alloy steel: ASTM A234 WP1, WP12, WP11, WP22, WP5, WP7, WP8, WP91 API5L X42 X52 X56 X60 X65 X70 X80 Stainless steel: ASME A403 WP304, 304L, 316, 316L, 310 Standards: ANSI, DIN, JIS, GB, ASTM, JB, SH, YB, SY, HG, API ASME Usage: Petroleum, chemical, power, gas, metallurgy. Our pipe elbows are widely used in many industries, such as power generation, petroleum, natural ga

Pipe fittings

Pipe fittings are work that involves the installation or repair of pipes or tubes. Pipes and tubes are necessary for a wide range of reasons. We are passionate about elbows, tees, reducer … Pipe elbows  >> Steel elbow is used to be installed between two lengths of pipe or tube allowing a change of direction,usually these carbon steel elbows distinguished by connection ends. +  Long radius  +  Short radius Pipe bending  >> Pipe bend can be made of variety materials,like carbon steel,alloy steel,stainless steel,low temperature steel or high performance steel,etc. + 180 degree bending     +  ASTM API 5L Gr.B bends   Pipe Tees  >> We can provide seamless tube tees and welding tube tees,which can also be divided into straight tees and reducing tees.Usually,the pipe tees have the same inlet and oulet sizes. +  Reducing tee     +  Barred Tee     +  Stainless Steel Tee Cross  >> A pipe fitting, having four op