YIELD STRENGTH OF STEEL

Yield strength values for common steels are given below.

Yield Strength of Steel at Room Temperature
Material	Yield Strength
Material	MPa	ksi (psi)
Carbon Structural Steel
ASTM A36 ^Note-1	250	36 (36300)
Low and Intermediate Tensile Strength Carbon Steel Plates
ASTM A283 Grade A	165	24 (24000)
ASTM A283 Grade B	185	27 (26800)
ASTM A283 Grade C	205	30 (29700)
ASTM A283 Grade D	230	33 (33400)
Pressure Vessel Plates, Carbon Steel, Low- and Intermediate-Tensile Strength ^Note-2
ASTM A285 Grade A	165	24 (23900)
ASTM A285 Grade B	185	27 (26800)
ASTM A285 Grade C	205	30 (29700)
Structural Steel for Ships
ASTM A131 Grade A,B,D,E,CS ^Note-3	235	34 (34000)
ASTM A131 Rivet Steel and Steel for Cold Flanging	205	30 (29700)
ASTM A131 Grade AH32,DH32,EH32 ^Note-4	315	46 (45700)
ASTM A131 Grade AH36,DH36,EH36 ^Note-4	355	51 (51000)
ASTM A131 Grade AH40,DH40,EH40 ^Note-4	390	57 (56600)
High-Yield-Strength, Quenched and Tempered Alloy Steel Plate
ASTM A514 To 2-1⁄2 in. [65 mm], incl	690	100 (100000)
ASTM A514 Over 2-1⁄2 in. [65 mm] to 6 in. [150 mm], incl	620	90 (90000)
Low Alloy Steel
AISI 4140 Normalized at 870 °C (1600 °F)	655	95 (95000)
AISI 4140 Annealed at 815 °C (1500 °F)	414	60 (60000)
AISI 4140 Water quenched from 845 °C (1550 °F) and tempered at 540 °C (1000 °F)	986	143 (143000)
AISI 4340 Normalized at 870 °C (1600 °F)	862	125 (125000)
AISI 4340 Annealed at 810 °C (1490 °F)	470	68 (68000)
AISI 4340 Oil quenched from 800 °C (1475 °F) and tempered at 540 °C (1000 °F)	1145	166 (166000)
Carbon Steel Bar
AISI 1020 Hot rolled	205	30 (29700)
AISI 1020 Cold drawn	350	51 (50800)
AISI 1040 Hot rolled	290	42 (42000)
AISI 1040 Cold drawn	490	71 (71000)
AISI 1045 Hot rolled	310	45 (45000)
AISI 1045 Cold drawn	530	77 (76900)
Stainless Steel
AISI 420 Annealed bar	345	50 (50000)
AISI 304 Annealed bar	235	34 (34000)
AISI 304 L	210	30.5 (30500)
AISI 304 N	330	47.9 (47900)
AISI 316 Annealed sheet	290	42 (42000)
AISI 316 Annealed bar	240	35 (34800)
AISI 316 Annealed and cold-drawn bar	415	60 (60000)
17-7 PH RH950	1030	149 (149000)

Note 1 : Yield point 32 ksi [220 MPa] for plates over 8 in. [200 mm] in thickness.

Note 2 : The maximum thickness of plates is limited to a maximum thickness of 2 in. [50 mm] for all grades.

Note 3 : Ordinary strength. For Grade A over 1 in. [25 mm] in thickness, the minimum yield point may be reduced to 32 ksi [220 MPa]

Note 4 : Higher strength.

Supplements:

Link	Usage
Tensile / Yield Strength of Steel Chart	Yield and tensile strength values for various steel alloys

Reference:

Davis, J.R. Metals Handbook Desk Edition. ASM, 1998.