Showing posts with label carbon steel pipe. Show all posts
Showing posts with label carbon steel pipe. Show all posts

JIS G3454 Carbon steel pipes

JIS G3454 Carbon steel pipes
carbon steel pipeJIS G3454JIS G3454 STPG370JIS G3454 STPG410steel tubesteel tubes 
JIS G3454 standard specifies the carbon steel pipes, hereinafter referred to as the pipes.
Standard:
  • JIS G3454 Carbon steel pipes for pressure service at an approximate maximum temperature of 350 Degrees Celsius.
Size range of JIS G3454 (mm):
  • Outer Dimensions: 19.05mm- 114.3mm
  • Wall Thickness:2.0mm -14 mm
  • Length: max 16000mm
Application:
  • Carbon steel pipes for pressure service
  • High pressure service and high temperature service
Packing:
  • Packing: in bundles
  • Surface: Varnish coating
  • Ends: Beveled or Plain ends with Plastic caps
Inspection & Certification:
  • 1) Certification: ISO, API, ASTM, DIN etc.
  • 2) Mill Test Certificate: EN10204/3.1B
  • 3) Third party inspection: SGS, BV, Lloyds etc.

The main products of steel / steel grade:

  • JIS G3454 STPG370
  • JIS G3454 STPG410
Packing: Bare/bundles/crates/crate protection at the both sides of tubes or as per customers’ requirements .
Painting: as requested.

Chemical Compositions(%) of JIS G3454

GradeCSiMnPS
STPG370≤0.25≤0.350.30-0.90≤0.040≤0.040
STPG410≤0.30≤0.350.30-1.00≤0.040≤0.040

Mechanical Properties of JIS G3454

GradeYield Strength (Mpa)Tensile Strength (Mpa)Elongation (%)
JIS G3454 STPG370≥216≥370≥30
JIS G3454  STPG410≥245≥410≥25
Pertaining to the electric-resisitance welded steel tubes, when previously agreed upon with the manufacturer, the purchaser may designate the supplementary quality requirements Z3 or Z4 speified in appendix, in addition to the items specified in this text.

ASTM A53 Pipe,ASME SA53 Pipe

ASTM A53 Pipe,ASME SA53 Pipe
ASTM A53 Pipe,ASME SA53 Pipe
ASTM A53 Pipe,ASME SA53 Pipe
Steel pipe
ASTM A53 Standard specification covers Seamless and Welded, Black and Hot-Dipped Galvanized nominal (average) wall pipe for coiling, bending, flanging and other special purposes and is suitable for welding.
The steel for both seamless and welded pipe shall be made by one or more of the following processes: open-hearth, electric furnace, or basic-oxygen. The weld seam of electric-resistance welded pipe in Grade B shall be heat treated after welding.
A53 pipe comes in three types and two grades
  • A53 Type F, which is longitudinally furnace butt welded or continuous welded (Grade A only)
  • A53 Type E, which is longitudinally electric resistance welded (Grades A and B)
  • A53 Type S, which is seamless pipe, produced by hot working, and possibly cold finishing, the steel (Grades A and B). ASTM A53, Type S is now currently an outdated specification and has been replaced by ASTM A106 specification for seamless carbon steel pipe.
This is a standard set by the standards organization ASTM International, a voluntary standards development organizations that sets technical standards for materials, products, systems, and services.
This specification covers Seamless and Welded, Black and Hot-Dipped Galvanized nominal (average) wall pipe for coiling, bending, flanging and other special purposes and is suitable for welding. Continuous-Welded pipe is not intended for flanging. Purpose for which pipe is intended should be stated on order. It shall be permissible to furnish pipe having other dimensions provided that such pipe complies with all other requirements of this specification. Supplementary requirements of an optional nature are provided and shall apply only when specified by the purchaser.
Note 1. The dimensionless designators NPS (nominal pipe size) [DN (diameter nominal)] have been substituted in this specification for such traditional terms as ‘nominal diameter,’ ‘size,’ and ‘nominal size.’
Note 2. The term nominal wall thickness has been assigned for the purpose of convenient designation, existing in name only, and is used to distinguish it from the actual wall thickness, which may vary over or under the nominal wall thickness.

Permissible Variations in Wall Thickness

The minimum wall thickness at any point shall not be more than 12.5% under the nominal wall thickness specified.

Permissible Variations in Weights per Foot

Weight of any length shall not vary more than 10% over and 3.5% under that specified.
NOTE-NPS 4 and smaller-weighed in lots. Larger sizes shall be weighed separately by length.

Chemical Requirements ASTM A53

Chemical
elements
Type SType EType F
(SMLS)(ERW)(FW)
Gr. AGr.BGr. AGr. BGr. A
Carbon max. %0.250.30.250.30.3
Manganese %0.951.20.951.21.2
P, max. %0.050.050.050.050.05
Sulfur, max. %0.0450.0450.0450.0450.045
Copper, max.%0.40.40.40.40.4
Nickel, max. %0.40.40.40.40.4
Chromium, max. %0.40.40.40.40.4
Mo, max. %0.150.150.150.150.15
Vanadium, max. %0.080.080.080.080.08
The total composition for these five elements shall not exceed 1.00%.

Tensile Requirements

PropertiesSMLS & ERWCon. welded
Grade AGrade BGrade
Tensile Strength, min., psi48,00060,00045,000
Yield Strength, min., psi30,00035,00025,000
  • Seamless and Electric-Resistance-Welded — Bending, flattening, tensile on one length of pipe from each lot of 500 lengths or less of a size.
  • Continuous-Weld — Bending, flattening, tensile
  • Con. welded: Continuous-welded

General Information

Couplings — Applied handling tight. Couplings, 2″ and smaller straight tapped, other sizes taper tapped.
Thread Protection — Applied to pipe 4″ and larger.
End Finish (unless otherwise specified) –
STD or XS, or wall thicknesses less than 0.500 in. (excluding XXS): Plain and beveled
All XXS and wall thicknesses over 0.500 in.: Plain end square cut.

Hydrostatic testing

Hydrostatic inspection test pressures for plain end and threaded and coupled pipe are specified. Hydrostatic pressure shall be maintained for not less than 5 seconds for all sizes of seamless and electric-resistance-weld pipe.

Mechanical tests specified

  • Tensile Test — Transverse required on ERW for NPS 8 and large.
  • Sending Test (Cold) — STD and XS-NPS 2 and under XXS-NPS 1 1/4 and under.
ApplicationDegree of BendDiameter of Mandrel
For Normal A53 Uses9012 x nom dia. of pipe
For Close Coiling1808 x nom dia. of pipe
Flattening Test — NPS 2 and larger STD and XS. (Not required for XXS pipe.)

ASTM A106 Carbon Steel Seamless Pipe

ASTM A106 Carbon Steel Seamless Pipe
ASTM A106 Carbon Steel Seamless Pipe
ASTM A106/A106M Carbon Steel Seamless Pipe


ASTM A106 Standard specification covers seamless carbon steel pipe for high-temperature service (Note 1) in NPS 1/8 to NPS 48 [DN 6 to DN 1200] (Note 2) inclusive, with nominal (average) wall thickness as given in ASME B36.10. It shall be permissible to furnish pipe having other dimensions provided such pipe complies with all other requirements of this specification.
Pipe ordered under this specification shall be suitable for bending, flanging, and similar forming operations, and for welding. When the steel is to be welded, it is presupposed that a welding procedure suitable to the grade of steel and intended use or service will be utilized.

Main steel grade:

  • ASTM A106 Grade A
  • ASTM A106 Grade B
  • ASTM A106 Grade C
Note 1: It is suggested, consideration be given to possible graphitization.
Note 2: The dimensionless designator NPS (nominal pipe size) [DN (diameter nominal)] has been substituted in this standard for such traditional terms as ‘nominal diameter’, ‘size’, and ‘nominal size’.
1.2 Supplementary requirements of an optional nature are provided for seamless pipe intended for use in applications where a superior grade of pipe is required. These supplementary requirements call for additional tests to be made and when desired shall be so stated in the order.
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents. Therefore, each system is to be used independently of the other.
1.4 The following precautionary caveat pertains only to the test method portion, Sections 11, 12, and 13 of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
NPS 1-1/2inch and under may be either hot finished or cold drawn. NPS 2inch and larger shall be hot finished unless otherwise specified.
Process
Killed steel, with primary melting process being open-hearth, basic-oxygen, or electric-furnace, possible combined with separate degassing or refining.
Steel cast in ingots or strand cast is permissible.
Hot-finished pipe need not be heat treated.
Cold-drawn pipe shall be heat treated after the final cold draw pass.

Chemical Requirements ASTM A106

ElementGrade AGrade BGrade C
Carbon,max0.25 (1)0.30 (2)0.35 (2)
Manganese0.27-0.930.29-1.060.29-1.06
Phosphorus,max0.0350.0350.035
Sulfur,max0.0350.0350.035
Silicon,min0.100.100.10
Chrome,max (3)0.400.400.40
Copper,max (3)0.400.400.40
Molybdenum,max (3)0.150.150.15
Nickel,max (3)0.400.400.40
Vanadium,max (3)0.080.080.08
(1) For each reduction of 0.01% below the specified carbon maximum, an increase of 0.06% manganese above
the specified maximum will be permitted up to a maximum of 1.35%.
(2)Unless otherwise specified by the purchaser, for each reduction of 0.01% below the specified carbon maximum,
an increase of 0.06% manganese above the specified maximum will be permitted up to a maximum of 1.65%.
(3) These five elements combined shall not exceed 1%.

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