ASTM Standard – Salecha Metal Industries

ASTM Standards And ASME B36.19M

Check ASME Tube Standards and ASME B36.19M Steel Grades Chart

• ASTM A213 Tube

• ASTM A213 TP304 Tube

• ASTM A213 TP304L Tube

• ASTM A213 TP316 Tube

• ASTM A213 TP316L Tube

• ASTM A249 Tube

• ASTM A249 TP304 Tube

• ASTM A249 TP304L Tube

• ASTM A249 TP316 Tube

• ASTM A249 TP316L Tube

• ASTM A269 Tubing

• ASTM A269 TP304 Tube

• ASTM A269 TP304L Tube

• ASTM A269 TP316 Tube

• ASTM A269 TP316L Tube

• ASTM A554 Tube

• ASTM A554 TP304L Tube

• ASTM A554 TP304 Tube

• ASTM A554 TP316 Tube

• ASTM A554 TP316L Tube

• ASTM A70 Tube

• ASTM A70 TP304 Tube

• ASTM A70 TP304L Tube

• ASTM A70 TP316 Tube

• ASTM A70 TP316L Tube

• ASTM A312 Tube

• ASTM A312 TP304 Tube

• ASTM A312 TP304L Tube

• ASTM A312 TP316 Tube

• ASTM A312 TP316L Tube

Difference between ASTM And ASME

The American Society for Testing and Materials, or ASTM, is a world authority in standards development that is voluntary and consensus-based. Around the world, people, businesses, and many institutions use the ASTM Standards. Thirty thousand voluntary members representing more than 140 nations make up these standards. Specific requirements to operate in high temperature and pressure applications are covered by ASME Tube Standards. A broad spectrum of industries and consumer groups can benefit from the standards provided in the ASTM Pipe Standards Chart in establishing the safety and quality of the materials. The uniformity and caliber of the materials are enhanced by these safety requirements

The nominal pipe size, wall thickness, weight, and schedule designation of a prospective pipe component can all be found using the ASTM Pipe Size Chart. The majority of ASTM pipe sizes are stated in inches or millimeters, so using this chart to help you choose the right kind of piping product for your project is essential. These pipes come in a variety of shapes and sizes depending on the materials and manufacturing techniques utilized to create the pipe components. The wall thickness of a pipe of the same diameter can be found using the ASTM Pipe Schedule. They are typically designed in Schedules 5, 5S, 10, 105, 20, 20, 30, 40, 40S, 60, 80, 80S, 100, 120, 140, 160, XS, and XXS. Their load-bearing capability is determined by them. Standard standards for seamless and welded pipe grades intended for use in both high and low pressure and temperature applications are covered by ASME B36.19. Copper, aluminum, titanium, and zirconium are examples of non-ferrous grade pipes that can also be utilized with the ASME 8 36.19. Within each module of this specification, there is allowed variance and tolerance. Please get in touch with us for further information if you have any questions or would like more details regarding the ASTM Pipe Size and its ingredients.

Steel Pipes Dimension Chart

Dimension standards for steel pipe

There are different standards to describe the steel pipe size, OD and wall thickness. Mainly are ASME B 36.10, ASME B 36.19.

ASME B36.10M

Steel pipe diameters and specifications are standardized under this standard. These pipes can be used at high or low temperatures and pressures, and they can be welded or seamless.
The pipe is specifically for pipeline systems, fluids (oil and gas, water, slurry) transmissions. This is where the pipe differs from the tube (Pipe vs. Tube). Utilize ASME B 36.10M as the standard.
According to this standard, the actual diameter of the pipe exceeds either the NPS (Nominal Pipe Size) or the DN (Nominal Diameter), if the pipe outer diameter is less than 12.75 in (NPS 12, DN 300).

In contrast, the true outer diameter of a steel tube matches the pipe number for every size.

ASME B36.19M

The dimensions for seamless and welded stainless steel pipes are specified in ASTM B36.19M.The majority of this dimension standard is the same as ASTM B36.10M. Wherever the following sections differ:

a. Schedule 10S for NPS 14 to NPS 22 (DN 350-550);

b. NPS 12 of Schedule 40S;

c. NPS 10 and 12 of Schedule 80S.

Since the pipe thickness stated above differs from B36.10M, the suffix “S” is utilized in this instance.

Schedule 40, 80 steel pipe dimension means

Why do you usually see schedule 40 or 80 steel pipe everywhere if you’re new to the pipe industry? What kind of substance are these pipes made of?

Since you’ve read the previous articles, you are aware that Schedule 40 or 80 denotes a pipe wall thickness; but, why are buyers continually looking for it?

This is the cause:

Due to the typical pressure that schedule 40 and 80 steel pipes must withstand, these pipes are frequently requested in large quantities across a variety of sectors.There are no restrictions on the material standard for pipes of this thickness. For example, you can ask for Sch 40 carbon steel pipe, such as API 5L, ASTM A53, or ASTM A106B, or Sch 40 stainless steel pipe, such as ASTM A312 Grade 316L.

What is Steel Pipe Dimensions Schedule?

Steel pipe schedule, denoted with “Sch,” is an identifying method that is utilized in numerous other standards and is represented by ASME B 36.10. Sch stands for schedule, and it is typically used as a prefix for a series number in the American Steel Pipe Standard. Sch 80, 80, for instance, is a pipe number from ASME B 36.10 chart or table.

The primary purpose of steel pipes is to transfer fluids under pressure, hence the size of their internal diameter is crucial. Nominal bore is used to determine this critical size (NB). It is crucial that steel pipes have adequate strength and wall thickness if they are to transport fluids under pressure. Thus, wall thickness is mentioned in Schedules, also known as the pipe schedule and represented by the acronym SCH. The pipe schedule specification and standard in this case are provided by ASME.

How to describe steel pipe dimensions and size correctly?

For example: a. Expressed as “pipe outside diameter × wall thickness”, such as Φ 88.9mm x 5.49mm (3 1/2” x 0.216” ). 114.3mm x 6.02mm (4 1/2” x 0.237”), length 6m (20ft) or 12m (40ft), Single Random Length (SRL 18-25ft), or Double Random Length (DRL 38-40ft).

b. Expressed as “NPS x Schedule”, NPS 3 inch x Sch 40, NPS 4 inch x Sch 40. Same size as above specification.

c. Expressed as “NPS x WGT Class”, NPS 3 inch x SCH STD, NPS 4 inch x SCH STD. Same size above.

d. There is another way, in North America and South America, usually use “Pipe Outer Diameter x lb/ft” to describe pipe size. As OD 3 1/2”, 16.8 lb/ft. lb/ft is pound per feet.

Pipe Weight Class Schedule

WGT class is the thickness of the pipe wall in the early days, but it’s still used today. There are only three grades of WGT class: STD (standard), XS (extra strong), and XXS (double extra strong). In the old days, each caliber had one specification called standard tube. XS was used to handle high pressure fluid, and XXS was used for higher pressure fluid. Eventually, people started to demand thinner-walled pipe, and that’s when the pipe number showed up. The relationship between the pipe schedule and the weight class can be found in ASME B36.10 and B36.19.

What is DN (Nominal Diameter)?

Nominal Diameter is also known as the mean or average outside diameter and is represented by DN. It is neither equal to the inner diameter (ID) nor the outer diameter (OD) of the pipe. Nominal is a word that denotes non-specificity and in this case, identifies the approximate inner diameter with a non-dimensional number.

Pipes having identical nominal diameters can be easily connected or interchanged with each other. Pipes are available in different DN sizes and the DN is used to arrive at the pipe dimensions using standard tables and schedules.

What is Nominal Pipe Size (NPS)?

Nominal Pipe Size (NPS) is a North American set of standard sizes for pipes used for high or low pressures and temperatures. “Nominal” refers to pipe in non-specific terms and identifies the diameter of the hole with a non-dimensional number (for example – 2-inch nominal steel pipe” consists of many varieties of steel pipe with the only criterion being a 2.375-inch (60.3 mm) outside diameter). Specific pipe is identified by pipe diameter and another non-dimensional number for wall thickness referred to as the Schedule (Sched. or Sch., for example – “2-inch diameter pipe, Schedule 40”)