YIELD STRENGTH OF STEEL


Yield strength values for common steels are given below.

Yield Strength of Steel
Yield Strength of Steel at Room Temperature
Material Yield Strength
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: