Material Strength Grade Guide

Material Grade	Tensile Strength (MPa)	Tensile Strength (ksi)	Yield Strength (MPa)	Yield Strength (ksi)
G10.9	1040	150	940	136
G8.8	830	120	660	96
ASTM A325	830	120	660	96
SCM440 JIS SCM440	1051	152	854	124
S45C JIS G4051	751	109	470	68

ASTM A193 Grade B7	860 – 1030	125 – 150	720 – 1080	105 – 156
ASTM A193 Grade B7M	860 – 1030	125 – 150	585	85
ASTM A193 Grade B16	860 – 1030	125 – 150	585	85
ASTM A193 Grade B8	515	75	205	30
ASTM A193 Grade B8A	860 – 1030	125 – 150	690	100
ASTM A193 Grade B8M	515 – 690	75 – 100	205 – 550	30 – 80
ASTM A193 Grade B8MA	515 – 690	75 – 100	205 – 550	30 – 80
ASTM A193 Grade B8T	515	75	205	30
ASTM A193 Grade B8TA	515	75	205	30
ASTM A193 Grade B8C	860 – 1030	125 – 150	720 – 1080	105 – 156
ASTM A193 Grade B8CA	860 – 1030	125 – 150	720 – 1080	105 – 156
ASTM A193 Grade B6	760	110	480	70
ASTM A193 Grade B5	860	125	585	85
ASTM A193 Grade B5A	860	125	585	85
ASTM A193 Grade B4	515	75	205	30
ASTM A193 Grade B8C	860 – 1030	125 – 150	720 – 1080	105 – 156
ASTM A193 Grade B8CA	860 – 1030	125 – 150	720 – 1080	105 – 156
ASTM A193 Grade B6X	760	110	480	70
ASTM A193 Grade B8TX	515 – 690	75 – 100	205 – 550	30 – 80
ASTM A193 Grade B8MX	860 – 1030	125 – 150	690	100

ASTM A36/A36M	400 – 550	58 – 80	250	36
ASTM A307	400 – 550	58 – 80	250	36
ASTM A325	830	120	660	95
ASTM A325M	830	120	660	95
ASTM A354	830 – 1040	120 – 150	660	95
ASTM A449	830 – 1040	120 – 150	585	85
ASTM A490	1040 – 1220	150 – 177	940	136
ASTM A490M	1040 – 1220	150 – 177	940	136
ASTM A574	860 – 1170	125 – 170	725	105
ASTM A449 Type 1	860 – 1030	125 – 150	720 – 1080	105 – 156
ASTM A574 Type 1	860 – 1170	125 – 170	725	105
ASTM A354 Grade BD	830 – 1040	120 – 150	660	95
ASTM A354 Grade BC	830 – 1040	120 – 150	660	95
ASTM A354 Grade BB	830 – 1040	120 – 150	660	95
ASTM A354 Grade BD with Ni	830 – 1040	120 – 150	660	95
ASTM A354 Grade BC with Ni	830 – 1040	120 – 150	660	95
ASTM A354 Grade BB with Ni	830 – 1040	120 – 150	660	95
ASTM F3125 Grade A325	830 – 1040	120 – 150	660	95
ASTM F3125 Grade A490	1040 – 1220	150 – 177	940	136

ASTM F1554 Grade 36	248 – 400	36 – 58	159	23 – 28
ASTM F1554 Grade 55	380 – 550	55 – 80	310	45 – 55
ASTM F1554 Grade 105	724 – 825	105 – 120	585	85 – 90

ISO 898 4.6	400	58	240	35
ISO 898 4.8	420	61	280	41
ISO 898 5.6	500	73	300	44
ISO 898 5.8	520	75	380	55
ISO 898 6.8	600	87	480	70
ISO 898 8.8	800	116	640	93
ISO 898 9.8	900	130	720	104
ISO 898 10.9	1000	145	900	130
ISO 898 12.9	1200	174	1080	156
DIN 933 8.8	800	116	640	93
DIN 933 10.9	1000	145	900	130
DIN 931 8.8	800	116	640	93
DIN 931 10.9	1000	145	900	130

ASME B18.2.1 307A	400	58	330	48
ASME B18.2.1 307B	400	58	240	35
ASME B18.2.1 307C	830	120	660	95
ASME B18.2.1 307D	1040	150	940	136
ASME B18.2.2 5	550	80	210	30
ASME B18.2.2 8	830	120	660	95
ASME B18.2.2 9	1040	150	940	136
ASME B18.2.2 10	1200	174	1050	152
ASME B18.5 4	400	58	250	36
ASME B18.5 5	830	120	660	95
ASME B18.5 6	1040	150	940	136
ASME B18.5 7	1220	177	1050	152

JIS B1186 Class 8.8	800	116	640	93
JIS B1186 Class 10.9	1000	145	900	130
JIS B1186 Class 12.9	1200	174	1080	156

SAE G2	≥ 414	≥ 60	–	–
SAE G5	≥ 830	≥ 120	–	–
SAE G8	≥ 1034	≥ 150	–	–
SAE G9	≥ 1207	≥ 175	–	–
SAE G10	≥ 1380	≥ 200	–	–
SAE G12	≥ 1241	≥ 180	–	–
SAE G8.2	≥ 796	≥ 115	–	–
SAE G8.8	≥ 827	≥ 120	–	–
SAE G9.8	≥ 1040	≥ 150	–	–

This Material Strength Grade Guide exists to provide standardized information about the strength and mechanical properties of various materials used in engineering and construction. This guide is essential for ensuring that the right materials are selected for specific applications, taking into account the required strength, durability, and performance of the components.

The grade standard for bolts refers to the specifications and requirements set by various organizations and standards bodies that define the mechanical properties, chemical composition, and other characteristics of bolts. These standards ensure that bolts meet certain quality and performance criteria for specific applications.

Some commonly used grade standards for bolts include:

ASTM (American Society for Testing and Materials) – ASTM A193, ASTM A307, ASTM A325, ASTM A490, ASTM F1554 and etc.
ISO (International Organization for Standardization) – ISO 898, ISO 4014, ISO 4017, etc.
DIN (Deutsches Institut für Normung) – DIN 933, DIN 931, DIN 125, etc.
ASME (American Society of Mechanical Engineers) – ASME B18.2.1, ASME B18.2.2, ASME B18.5, etc.
JIS (Japanese Industrial Standards) – JIS B1180 Class 4.6,JIS B1180 Class 4.8,JIS B1180 Class 5.6,JIS B1180 Class 5.8,JIS B1180 Class 6.8,JIS B1180 Class 8.8,JIS B1180 Class 9.8,JIS B1180 Class 10.9,JIS B1180 Class 12.9
SAE (Society of Automotive Engineers) grade of bolts is a classification system used to specify the mechanical properties of bolts, screws, and studs used in automotive and other engineering applications. – SAE Grade 2, SAE Grade 5, SAE Grade 8

Each standard defines specific grade classifications based on factors such as material composition, mechanical properties, and other performance criteria. These grade standards help ensure that bolts are manufactured and used appropriately for their intended applications. When purchasing bolts, it’s essential to specify the required grade standard to ensure you get the appropriate bolts for your specific needs.

ASTM F1554

ASTM F1554 is a standard specification for anchor bolts used in construction and structural applications. This specification covers various grades of anchor bolts that are designed for anchoring structural supports to concrete foundations or other structural materials. The F1554 specification includes several grades of anchor bolts with different mechanical properties to suit different applications.

The F1554 standard covers anchor bolts in diameters ranging from 1/2 inch to 4 inches and is commonly used in a variety of construction projects, including buildings, bridges, highways, and other structures where anchoring to concrete or masonry is required. The different grades within the F1554 specification are designed to provide specific levels of tensile strength, yield strength, and elongation, making it easier for engineers and designers to choose the appropriate anchor bolt for their specific project needs.

ASTM F1554 covers three grades of anchor bolts:

Grade 36: This grade is a low carbon, weldable steel with a minimum yield strength of 36,000 psi (250 MPa). It is commonly used for general applications where a lower strength anchor bolt is sufficient.
Grade 55: This grade is a higher strength alternative to Grade 36, with a minimum yield strength of 55,000 psi (380 MPa). It is often used for applications that require higher load-carrying capacity.
Grade 105: This grade is the highest strength option within ASTM F1554, with a minimum yield strength of 105,000 psi (725 MPa). It is typically used for heavy-duty applications that require the highest level of strength and load capacity.

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