JIS G3456 Grade STPT 370 Carbon Steel Seamless Pipes

JIS G3456 Grade STPT 370 Specification

JIS G3456 Grade STPT 370 Carbon Steel Seamless Pipes are also known as mild steel pipes and tubes.JIS G3456 Grade STPT 370 Pipes are low-cost Low Carbon Steel Pipes with max 025 % carbon content with combination of 030-090 % manganese easy to form and shape .These pipes are manufactured as per JIS Specification and commercially referred as cs pipes or ms pipes.Low Carbon Steel Pipes are not as hard as hig carbon steel pipes,Though carburizing can increase its surface hardness.

JIS G3456 Grade STPT 370 Properties

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Chemical Properties
Carbon Silicon Manganese Phosphorous Sulphur Molybdenum Nickel Chromium Copper Others
max 0.25 0.10-0.35 0.30-0.90 0.035 0.035


Mechanical Properties
Yield Strength Tensile Strength Elongation A5 min
MPa min ksi min MPa min MPa min ksi min Percentage
370 30

Equivalent Designation
DIN EN BS NFA ASTM ASME

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  • Carbon Steel
  • Alloy Steel
  • Low Temperature Carbon Steel
  • High Temperature Carbon Steel
  • Low Temperature Alloy Steel
  • High Temperature Alloy Steel

Types of JIS G3456 Grade STPT 370

Pipes

Seamless Pipes

  • Cold Drawn Seamless Pipes
  • Hot Drawn Seamless Pipes

Welded Pipes

  • Electric Resistance Welded(ERW) Pipes
  • Continous Welded(CW) Pipes
  • Submerged Arc Welded(SAW) Pipes
  • Double Submerged Arc Welded(DSAW) Pipes
  • Spiral Welded Pipes
  • High Frequency Induction(HFI)
  • Longitudinally Submerged Arc Welded(LSAW) Pipes

Tubes

Seamless Tubes

  • Cold Drawn Seamless Tubes
  • Hot Drawn Seamless Tubes

Welded Tubes

  • Electric Resistance Welded(ERW) Tubes
  • Continous Welded(CW) Tubes
  • Submerged Arc Welded(SAW) Tubes
  • Double Submerged Arc Welded(DSAW) Tubes
  • Spiral Welded Tubes
  • High Frequency Induction(HFI)
  • Longitudinally Submerged Arc Welded(LSAW) Tubes

Hollow Sections

Pipes

  • Boom Pipe
  • Culvert Pipes
  • Square Pipes
  • Round Pipes
  • Honed Pipes

Tubes

  • Boom Tubes
  • Culvert Tubes
  • Square Tubes
  • Round Tubes
  • Honed Tubes

Dimensional Tolerances of JIS G3456 Grade STPT 370

OD/Wall tolerance

Outer diameter and wall Thickness
Execution Size Range OD Tolerance Wall tolerance
Hot-rolled Tube OD – 80 mmOD > 80 mmWall < 12 mmWall - 12 mm ± 0.4 mm± 0.5 % of OD ± 0.7 mm± (5 % x wallthickness + 0.1 mm
Hot-rolled peeled tube All sizesWall < 12 mmWall - 12 mm + 0.25/- 0 mm ± 0.8 mm± (5 % x wall thickness+ 0.2 mm)
Cold Worked tubecold-rolled or cold-drawn OD < 40 mmOD 40 - 80 mmOD > 80 Wall Thickness< 6 mm Wall Thickness6 - 8 mm Wall Thickness > 8 + 0.30/- 0 mm*+ 0.35/- 0 mm*+ 0.40/- 0 mm* ± 0.30 mm± 0.35 mm± 0.40 mm

Straightness

The maximum deviation from the straight line is 1 mm on a gauge length of 1000 mm.

Ovality

The maximum out-of-roundness is 65% of the total outer diameter tolerance.

Standard length tolerances

Component length (mm) OD 30-100 mm OD 100-254 mm
10-100 + 1.0/- 0 + 2.0/- 0
100-600 + 2.0/- 0 + 3.0/- 0
600-1200 + 3.0/- 0 + 4.0/- 0
1200-5000 + 5.0/- 0 + 6.0/- 0

Delivery Executions of JIS G3456 Grade STPT 370

Tube Ends

All tubes are supplied with clean, square cut ends.Deburring and/or chamfering can be carried out on request.

Tube surface

Tubes are supplied normally without anti-corrosive treatment, but anti-corrosive treatment is available and is carried out on request.

Protection

  • Black and Bare
  • External Varnished with Black or Clear LAcquer

Mill test certificate

  • MTC is issued in accordance with EN 10204.

Packaging

Tubes are bundled as standard, with steel straps into hexagonal bundles with one end flush.Length sorting can be carried out on request. Tubes can also be bundled in multiples. Bundle weights are adjusted as requested by the customer. Each bundle contains tubes from a single cast/heat only.

Marking

Each tube is marked with tube type, heat number, steel grade and size. Information is repeated along the whole length of the tube. Other markings, such as stamping, can be made on request. Bundles are also labeled with a tag having info both alphanumeric and by bar code.

Labelling

Material delivered direct from our mill is labeled in accordance with automotive standard, ie with both alphanumeric and bar code information. Customer specific data can be added on request.

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Dimensional Standards of JIS G3456 Grade STPT 370

FEDERAL

WWP-404c is similar to ASTM A-53 except that Government inspection and continuous identification marking of electric weld and seamless is mandatory. It covers black and galvanized welded and seamless pipe for flanging, bending, and coiling and for use with fresh water, oil, steam, air, and gas on shore plus a limited number of shipboard uses. Sizes 1/8 inch through 24 inch.WWP-406c is a federal specification comparable to ASTM A-120 (withdrawn 1988). Mills can certify that A-120 pipe in a distributor-s stock meets all the requirements of WWP-406c.

A.W.W.A.

C-200 covers black welded and seamless pipe intended for the conveyance of water in sizes 6 inch and larger. Specification prescribes hydrostatic test pressures for sizes of pipe covered. Tensile, flattening, and bending tests are required.

ASME

  • B31.1 Code for pressure piping.plants, and industrial plants.
  • B31.2 Fuel Gas Piping.
  • B31.3 Petroleum Refinery Piping.
  • B31.4 Liquid PetroleumTransportation Piping Systems.
  • B31.5 Refrigeration Piping.
  • B31.7 Nuclear Power Piping
  • B31.8 GasTransmission and Distributing Piping Systems. Covers design, fabrication, installation, inspection, testing, and the safety aspects of operation and maintenance of gas transmission and distribution systems.

ANSI (ASME)

  • B36.10 American Standard for Wrought-Steel and Wrought-Iron pipe. Designates dimensions, weights, and schedule numbers for welded and seamless pipe. Schedules 10 through Schedules Double Extra Heavy (DXH/XXH).
  • B36.19 American Standard for Stainless Steel Pipe. Designates dimensions, weights, and schedule numbers for welded and seamless Stainless Steel Pipe, Schedules 5 through Schedules 80.

A.A.R.

  • M-111 covers black and galvanized welded and seamless pipe intended for coiling, bending, flanging, and other special purposes and is suitable for welding. Purpose for which pipe is intended should be stated on orders. M-111 is comparable in most requirements to ASTM A-53.
  • M-130 covers black and galvanized welded and seamless pipe for ordinary uses in steam, water, gas, and air lines. Sizes 1/8 inch through 12 inch. Pipe to this specification is not intended for close coiling, bending, or high temperature service. M-130 is comparable in most requirements to ASTM A-120.

JIS G3456 Grade STPT 370 Specification Covers Carbon Steel Pipes for High Temperature Service. Mechanical properties of This steel grades can be varied greatly by heat treating. Through a controlled cycle of heating and cooling, certain desired properties are obtained by producing predictable changes in the microstructure of the steel. Our pipe representative will be happy to work with you to develop the information that is required.

FerroPipE is considered as the most Reliable JIS G3456 Grade STPT 370 Pipes Supplier from India.

JIS G3456 Grade STPT 370 Carbon Steel Seamless Pipes are certified with Mill test Certificate in accordance with En 10204 Type 3.1/3.2. Where 3.2 indicates In-stage inspection by independent inspection agencies like TUV, DNV, BVQS, LLOYDS & EIL.
IBR, NACE MR 0175,NACE MR 0103, HIC, IGC, IMPACT are adhered as supplementary testing requirements for JIS G3456 Grade STPT 370 which can be fulfilled with a government approved NABL laboratory.
JIS G3456 Grade STPT 370 Pipes are supplied in varnished condition in order to prevent formation of rust.
JIS G3456 Grade STPT 370 Pipes are used mainly for automobile sectors, interior & exterior architectural structures, water pipe lines, Gas lines, Oil & Gas industries etc.
Top 9 Grades of JIS Specification Pipes avaiable ex stock.
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