Product introduction

This specification covers wall seamless and welded carbon and alloy steel pipe intended for use at low temperatures. The pipe shall be made by the seamless or welding process with the addition of no filler metal in the welding operation. All seamless and welded pipes shall be treated to control their micro-structure. Tensile tests, impact tests, hydro-static tests, and nondestructive electric tests shall be made in accordance to specified requirements.
1. Scope
1.1 This specification covers nominal (average) wall seamless and welded carbon and alloy steel pipe intended for use at low temperatures. Several grades of ferric steel are included as listed in Table 1. Some product sizes may not be available under this specification because heavier wall thicknesses have an adverse affect on low-temperature impact properties.
1.2 Supplementary Requirement S1 of an optional nature is provided. This shall apply only when specified by the purchaser.
1.3 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in non-conformance with the specification. The inch-pound units shall apply unless the "M" designation of this specification is specified in the order.

Technical data

Seamless Steel Pipe Chemical Composition and Mechanical Properties

This data is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

Standard	Grade	Chemical Composition (%)					Mechanical Properties
ASTM A53		C	Si	Mn	P	S	Tensile STrength(Mpa)	Yield STrength(Mpa)
	A	≤0.25	-	≤0.95	≤0.05	≤0.06	≥330	≥205
	B	≤0.30	-	≤1.2	≤0.05	≤0.06	≥415	≥240
ASTM A106	A	≤0.30	≥0.10	0.29-1.06	≤0.035	≤0.035	≥415	≥240
	B	≤0.35	≥0.10	0.29-1.06	≤0.035	≤0.035	≥485	≥275
ASTM A179	A179	0.06-0.18	-	0.27-0.63	≤0.035	≤0.035	≥325	≥180
ASTM A192	A192	0.06-0.18	≤0.25	0.27-0.63	≤0.035	≤0.035	≥325	≥180
API 5L PSL1	A	0.22	-	0.90	0.030	0.030	≥331	≥207
	B	0.28	-	1.20	0.030	0.030	≥414	≥241
	X42	0.28	-	1.30	0.030	0.030	≥414	≥290
	X46	0.28	-	1.40	0.030	0.030	≥434	≥317
	X52	0.28	-	1.40	0.030	0.030	≥455	≥359
	X56	0.28	-	1.40	0.030	0.030	≥490	≥386
	X60	0.28	-	1.40	0.030	0.030	≥517	≥448
	X65	0.28	-	1.40	0.030	0.030	≥531	≥448
	X70	0.28	-	1.40	0.030	0.030	≥565	≥483
API 5L PSL2	B	0.24	-	1.20	0.025	0.015	≥414	≥241
	X42	0.24	-	1.30	0.025	0.015	≥414	≥290
	X46	0.24	-	1.40	0.025	0.015	≥434	≥317
	X52	0.24	-	1.40	0.025	0.015	≥455	≥359
	X56	0.24	-	1.40	0.025	0.015	≥490	≥386
	X60	0.24	-	1.40	0.025	0.015	≥517	≥414
	X65	0.24	-	1.40	0.025	0.015	≥531	≥448
	X70	0.24	-	1.40	0.025	0.015	≥565	≥483
	X80	0.24	-	1.40	0.025	0.015	≥621	≥552

Carbon Steel Seamless Pipe Chemical Composition and Mechanical Properties 

Standard

Grade

Chemical Composition

Mechanical Properties

C

Si

Mn

P

S

Cr

Ni

Cu

Tensile Strength(Mpa)

Yield Strength(Mpa)

Elongation(%)

GB/T8163

10

0.07-0.14

0.17-0.37

0.35-0.65

≤0.035

≤0.035

≤0.15

≤0.25

≤0.25

335-457

≥205

≥24

20

0.17-0.24

0.17-0.37

0.35-0.65

≤0.035

≤0.035

≤0.25

≤0.25

≤0.25

410-550

≥245

≥20

Q345

0.12-0.20

0.20-0.55

1.20-1.60

≤0.045

≤0.045

-

-

-

490-665

≥325

≥21

 Carbon Steel Seamless Pipe Tolerance 

Pipe types	Pipe Szie(mm)		Tolerances
Hot rolled	OD	All	±1% (min ±0.50mm)
	WT	All	+15%, -12.5%
Cold drawn	OD	6～10	±0.20mm
		10～30	±0.40mm
		30～50	±0.45mm
		>50	±1%
	WT	≤1	±0.15mm
		>1～3	+15% -10%
		>3	+12.5% -10%

Seamless Steel Pipe End 

Plain End	Wall Thickness less than 0.5 inch, including SCH STD & SCH XS
Plain End (Square Cut)	Wall Thickness over 0.5 inch, including SCH XXS
Beveled End	Wall Thickness less than 0.5 inch, including SCH STD & SCH XS
Couplings	Outside Diameter equal or less than 2''
Thread Protection	Outside Diameter over 4 inch

Warehouse Storage

Shandong Juhuo Special Steel Co., Ltd. is a comprehensive enterpriseintegrating steel supply and processing. The company has a large inventory of metal materials such as stainless steel, galvanized, profiles, aluminum.copper, lead, etc, which can meet the needs of customers in different fields.The company has strong strength and has a professional team with excellent technology and rich experience.The company has also introduced advanced production equipment and processing technology, which can provide customers with steel products of various specifications and processing requirements.

Customer conversation

We provide the products consultation , purchase plan suggestion , logistic service ( including the shipment service , custom works ,etc ).

Application field

Taking technology as the guide, quality as the guarantee, and service as the purpose, the company actively explores the market, expands the scale of operation, and constantly improves enterprise management to ensure product quality and service quality.