ASTM A252

ASTM A252 standard covers nominal wall cylindrical steel pipe piles in which the steel cylinder acts as a permanent load-carrying member or as a shell to form cast-in-place concrete piles. Each welded pile shall be made by seamless, electric resistance welding, flash welding or fusion welding with longitudinal, helical-butt, or helical-lap seams.

This standard is issued under the fixed designation A 252; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon ( ュ) indicates an editorial change since the last revision or reapproval.

This specification has been approved for use by agencies of the Department of Defense. Consult the DoD Index of Specifications and Standards for specific year of issue which has been adopted by the Department of Defense.

1. This specification covers nominal (average)wall steel pipe piles of cylindrical shape and applies to pipe in which the steel cylinder acts as a permanent load-carrying member, or as a shell to form cast-in place concrete piles.
2. The values stated in inch-pound units are to be regarded as the standard.
3. The following precautionary caveat pertains only to the test method portion, Section 16 of this specification. This standard does not purport to address all of the safery problems, if any, associated with its use. It is the responsi-bility of the user of this standard to establish applicability of regulatory limitations prior to use.

JIS Number and Corrensponding Foreign Standards

ASTM A252 standard covers nominal wall cylindrical steel pipe piles in which the steel cylinder acts as a permanent load-carrying member or as a shell to form cast-in-place concrete piles.
Each welded pile shall be made by seamless, electric resistance welding, flash welding or fusion welding with longitudinal, helical-butt, or helical-lap seams.

JIS			ASTM			BS			DIN			NF			ISO			Index Number
Standard Number	Grade	Tupe	Standard Number	Grade	Tupe	Standard Number	Grade	Tupe	Standard Number	Grade	Tupe	Standard Number	Grade	Tupe	Standard Number	Grade	Tupe
G3445	STKM11A	C	A512	MT1010	C	1717	ERWC1	C	2391	St30Si	C				3304	R28	C	C017
			A513	MT1010	C					St30A1	C				3305	"	C
									2393	St28	C				3306	"	C
										RSt28	C
									2394	St28	C
										USt28	C
										RSt28	C
	STKM12A	C	A512	MT1015	C	1717	ERWC2	C	2391	St37-2					3304	R33	C
			A513	MT1015	C	6323	HFS3	C		RSt37-2					3305	"	"
	STKM12B	C	A512	MT1015	C				2394	St37-2					3306	"	"
			A513	MT1015	C					Ust38-2
			A519	MT1015	C					RSt-2
	STKM12C	C				1717	CEWC2	C				A49-322	TU37b	C
						"	CFSC3	C				A49-327	TU37b	C
						6323	CFS3	C
						"	CFS3A	C
	STKM13A	C	A312	MT1020	C	1717	ERWC3	C	2391	St45	C	A49-324	TU37b	C	2937	TS4	C
			A513	MT1020	C				2393	St44-2	C	A49-330	TU37b	C	3304	R37	"
									2394	St44-2	C	A49-343	TU38b	C	3305	"	"
	STKM13B	C	A513	MT1020	C										3306	"	"
	STKM13C	C				1717	CEWC3	C
						"	CFSC4	C
						6323	CFS4	C
	STKM14A	C	A513	MT1020	C	6323	HFS4	C							2937	TS9	C
															3304	R42	"
	STKM14B	C				6323	HFS5	C							3305	R42	C
	STMK14C	C													3306	"	"
	STKM15A	C	A513	1030	C
			A519	1030	C
	STKM15C
	STKM16A	C	A519	1040	C							A49-311	TUXC35	C
												A49-312	TUXC35	C
	STKM16C	C
	STKM17A	C	A519	1050	C	6323	HFS8	C
	STKM17C	C				6323	CFS8	C
	STKM18A	C	A519	1518	C	1717	ERWC5	C				A49-310	TU52b	C
												A49-311	TU52b	C
												A49-312	TU52b	C
	STKM18B	C										A49-321	TU52b	C
												A49-323	TU52b	C
												A49-326	TU52b	C
	STKM18C	C										A49-330	TU52b	C
												A49-341	TS42a	C
												"	TS47a	C
												A49-343	TS18M5	C
	STKM19A	C	A519	1524	C				2391	ST52	C				2937	TS18	C
									2393	ST52-3	C				2938	Gr.1	C
									2394	ST52-3	C				3304	R50	C
															3305	R50	C
															3306	R50	C
	STKM20A	C

JIS Number and Corrensponding Foreign Standards

JIS			ASTM			BS			DIN			NF			ISO			Index Number
Standard Number	Grade	Tupe	Standard Number	Grade	Tupe	Standard Number	Grade	Tupe	Standard Number	Grade	Tupe	Standard Number	Grade	Tupe	Standard Number	Grade	Tupe
G3441	SCr420TK	Cr																C018
	SCM415TK	CrMo
	SCM418TK	CrMo				6323	CFS10	CrMo
	SCM420TK	CrMo	A519	5120	CrMo
	SCM430TK	CrMo	A519	4130	CrMo
	SCM435TK	CrMo	A519	4135	CrMo
	SCM440TK	CrMo	A519	4140	CrMo	6323	CFS10	CrMo

Mechanical properties of ASTM A 252

GRADE	YIELD	TENSILE
1	30 000(205)	50 000(345)
2	35 000(240)	60 000(414)
3	45 000(310)	66 000(455)

Our ASTM A252 piling pipes are widely used for tubular steel pipe piles, structural support piles, and cast-in-situ concrete piles.
We also offer carbon steel seamless pipes, black steel pipe and stainless steel tubes, coating steel pipes etc. Our high quality products are offered at competitive prices.

Physical Requirements

Below are the physical properties required to meet the three grades that we produce ASTM A252 round tubing to.

Grade	Yield (min)	Elongation (min)	Tensile (min)
Grade 1	30,000 psi	Determined by wall	50,000 psi
Grade 2	35,000 psi	Determined by wall	60,000 psi
Grade 3	45,000 psi	Determined by wall	66,000 psi

Weld Seam Information

The 12.375″, 14.00″ and 16.00″ round OD sizes to ASTM A252.

The submerged arc weld will leave up to a 1/4″ OD weld reinforcement on the exterior of the tube.

Sunny Steel produces round submerged arc welded steel tubing to meet ASTM specifications A252 Grade 1, Grade 2 and Grade 3. The purpose and strength levels required will determine which grade is required. Produced in 12.375 inch, 14.00 inch and 16.00 inch OD and in wall thicknesses from 0.109″ up to 0.220″, ASTM A252 tubing is used in a select number of agricultural, industrial and construction related end uses.

Specification Notes

• According to ASTM A252, the outside diameter of tubes produced to this specification shall have a +/- 1% variation.
• At the time of quote and order placement, please specify the end use of the tubing and how the tubing will be used so that it can be determined whether the submerged arc weld will be acceptable for the application.
• All other mechanical tubing sizes produced by Valmont up to 12.75″ round and 6.00″ square and rectangle are produced as electric resistance welded (ERW) tubing.

Chemical composition of ASTM A252

Grade	% by mass, Maximum
	C	Si	Mn	P	S	N
S235JRH	0.17	-	1.4	0.04	0.04	0.009
S275JOH	0.2	-	1.5	0.035	0.035	0.009
S275J2H	0.2	-	1.5	0.03	0.03	-
S355JOH	0.22	0.55	1.6	0.035	0.035	0.009
S355J2H	0.22	0.55	1.6	0.03	0.03	-
S355K2H	0.22	0.55	1.6	0.03	0.03	-

Test required

Chemical Analysis, Mechanical Test, Visusal Inspection , Tensile Test, Dimension Check, NDT ,Impact Test