Specification: ASTM A192 / ASME SA192
Grades: A192 Grade Tubes and Tubing
Type: Seamless – Hot Rolled / Cold Drawn
Outer Diameter Size: 1/4" NB To 2" NB (Nominal Bore Size)

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ASME SA192 Seamless Boiler Pipe for heat exchanger Specification

This guide covers standard specifications for minimum-wall-thickness, seamless carbon steel boiler and superheater tubes for high-pressure service. The steel shall conform to the required chemical composition for carbon, manganese, phosphorus, sulfur, and silicon. The tubes shall have a hardness number not exceeding a specific value. The following mechanical tests shall be conducted, namely: flattening test; flaring test; hardness test; and hydrostatic test.

1.This specification covers minimum-wall-thickness, seamless carbon steel boiler and superheater tubes for high-pressure service.

2.SA192 Boiler Tubes sizes and thicknesses usually furnished to this specification are 1/2 in. to 7 in. [12.7 to 177.8 mm] outside diameter and 0.085 to 1.000 in. [2.2 to 25.4 mm], inclusive, in minimum wall thickness. Tubing having other dimensions may be furnished, provided such tubes comply with all other requirements of this specification.

3.Mechanical property requirements do not apply to tubing smaller than 1/8 in. [3.2 mm] inside diameter or 0.015 in. [0.4 mm] thickness.

A192 Tubes Specification	ASTM A192 / ASME SA192
A192 Tubes Grades	A192 Grade Tubes and Tubing
A192 Tubes Type	Seamless – Hot Rolled / Cold Drawn
A192 Tubes Outer Diameter Size	1/4" NB To 2" NB (Nominal Bore Size)
A192 Tubes Wall Thickness	1 mm Thickness to 8 mm Thickness
A192 Tubes Length	5800mm; 6000mm; 6096mm; 7315mm; 11800mm; and so on. Max length: 27000mm, also U bending can be offered.
A192 Tubes Ends	Plain Ends / Beveled Ends / Coupling
A192 Tubes Delivery Conditions	As Rolled, Cold Drawn, Normalizing Rolled
A192 Tubes Coating	Epoxy Coating / Colour Paint Coating / 3LPE Coating.
A192 Tubes Other Testing	NACE MR0175, NACE TM0177, NACE TM0284, HIC TEST, SSC TEST, SWC, H2 SERVICE, IBR, PWHT etc.
A192 Tubes Dimension	All Pipes Is Manufactured and Inspected / Tested to the Relevant standards including ASTM, ASME, API.

Dimension And Wall Thickness Tolerances(SA-450/SA-450M):

OD In (mm)	+	-	WT In(mm)	+	-
< 1(25.4)	0.10	0.10	≤ 1.1/2(38.1)	20%	0
1 to 1.1/2(25.4 to38.1)	0.15	0.15	> 1.1/2(38.1)	22%	0
> 1.1/2 to<2(38.1 to 50.8)	0.20	0.20
2 to < 2.1/2(50.8to 63.5)	0.25	0.25
2.1/2 to < 3(63.5to 76.2)	0.30	0.30
3 to 4(76.2 to 101.6)	0.38	0.38
> 4 to 7.1/2(101.6to 190.5)	0.38	0.64
> 7.1/2 to 9(190.5to 228.6)	0.38	1.14

Hardness:

Brinell HardnessNumber (WT≥) 0.200In ( 5.1mm )	Rockwell HardnessNumber (WT≥) 0.200In(5.1mm )
137HRB	77HRB

Technical data

Chemical Composition

Carbon	Silicon	Manganese	Phosphorous	Sulphur	Molybdenum	Nickel	Chromium	Copper	Others
0.06-0.18	max 0.25	0.27-0.63	0.035	0.035	–	–	–	–	–

ASTM A192 seamless carbon steel pipe Mechanical properties

Yield		Tensile			Elongation A5 min
MPa min	ksi min	MPa min	MPa min	ksi min	Percentage
		325	–	47	35

Outside Diameter & Tolerance

Outside Diameter, mm	Tolerance, mm
3.2≤OD＜25.4	±0.10
25.4≤OD≤38.1	±0.15
38.1＜OD＜50.8	±0.20
50.8≤OD＜63.5	±0.25
63.5≤OD＜76.2	±0.30
76.2	±0.38

Wall Thickness

Outside Diamter, mm	Tolerance, %
3.2≤OD＜38.1	+20/-0
38.1≤OD≤76.2	+22/-0

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Shandong Chengshun Metal Materials Co., Ltd. is located in Jinan City, Shandong Province. It is a comprehensive company dealing in high-quality steel products, with a superior geographical location and very convenient transportation. The company has a complete and scientific quality system, and has been recognized by the industry for its integrity, strength and product quality.

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