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1、Identificati onFastenerNominal Size Grade MarkDescriptionRange (in.)Proof LoadYield StrengthTensile Strength (psi)Min (psi)Min (psi)SAE J429Bolts,Grade 1Screws, Studs NoASTM A307 GradeGrades A&BMarkSAE J42955,00057,00074,000Grade 233,00036,00060,000 SAE J429 Grade 4No GradeMarkASTM A193Grade B5B5 AS
2、TM A193Grade B6B6 ASTM A1931/4 thru 2-1/2-105,000125,000Grade B7Over 2-1/2 thru 4-95,000115,000B7Over 4 thru 7-75,000100,000ASTM A193105,000125,000Grade B1695,000115,000B1685,000100,000ASTM A193Grade B8B8ASTM A193Grade B8CB8CASTM A193Grade B8MB8MASTM, SAE AND ISO GRADE MARKINGS AND MECHANICAL PROPER
3、TIES FOR STEEL FASTENERS宁波龙益金属有限公司 Ningbo Long I Metal Industry Co.,Ltd. 专业生产 不锈钢六角螺母、尼龙锁紧螺母、盖形螺母、法兰螺母、焊接螺母、方螺母、圆螺母、链条滚子Various Type of Stainless Steel fastenersTel:+86 574 86178209 FAX+86 574 86178210 Email: Web: 110,000AISI 4140, 4142, OR 4105CrMoVa Alloy SteelAISI 3041/4 and larger-30,00075,000A
4、ISI 347AISI 316100,000115,000AISI 5011/4 Thru 4-80,000100,000AISI 41085,000StudsMedium Carbon Cold Drawn Steel1/4 thru 1-1/2-Low or Medium Carbon Steel1/4 thru 3/4 Over 3/4 to 1-1/2Specificatio nMaterialMechanical PropertiesLow or Medium Carbon Steel1/4 thru 1-1/233,00036,000 60,000Low Carbon Steel1
5、/4 thru 41/7ASTM A193Bolts, Grade B8TScrews,B8TStuds for High- Temperature Service ASTM A193AISI 3041/4 thr 3/4-100,000125,000Grade B8Strain HardenedOver 3/4 thru 1-80,000115,000B8Over 1 thru 1-1/4-65,000105,000ASTM A193AISI 347Over 1-1/4 thru 1-1/2-50,000100,000Grade B8CStrain Hardened B8CASTM A193
6、AISI 31695,000110,000Grade B8MStrain Hardened80,000100,000B8M65,00095,000 50,00090,000ASTM A193AISI 321100,000125,000Grade B8TStrain Hardened80,000115,000B8T65,000105,000 50,000100,000 ASTM A320Bolts,AISI 4140,Grade L7Screws,4142 or 4145L7Studs for Low- Temperature ServiceASTM A320Grade L7A L7AASTM
7、A320Grade L7B L7BASTM A320Grade LC7 L7CASTM A320Grade L43 L43宁波龙益金属有限公司 Ningbo Long I Metal Industry Co.,Ltd. 专业生产 不锈钢六角螺母、尼龙锁紧螺母、盖形螺母、法兰螺母、焊接螺母、方螺母、圆螺母、链条滚子Various Type of Stainless Steel fastenersTel:+86 574 86178209 FAX+86 574 86178210 Email: Web: ASTM, SAE AND ISO GRADE MARKINGS AND MECHANICAL
8、 PROPERTIES FOR STEEL FASTENERS1/4 thru 4-105,000125,000AISI 4037AISI 4137AISI 8740AISI 434075,0001/4 thru 2-1/2-105,000125,000AISI 3211/4 and larger-30,0002/7ASTM A320Bolts, Grade B8Screws,B8Studs for Low- Temperature ServiceASTM A320Grade B8C B8CASTM A320Grade B8T B8TASTM A320AISI 303Grade B8For 3
9、03Se B8FASTM A320Grade B8M B8MASTM A3201/4 thru 3/4-100,000100,000Grade B8Over 3/4 thru 1-80,00080,000B8Over 1 thru 1-1/4-65,0065,00ASTM A320Over 1-1/4 thru 1-1/2-50,0050,00Grade B8C B8CASTM A320AISI 303Grade B8For 303Se B8FASTM A320Grade B8M B8MASTM A320Grade B8T B8T SAE J429Bolts,1/4 thru 185,0009
10、2,000120,000Screws,Over 1 to 1- 1/274,00081,000105,000Grade 5Studs 1/4 thru 185,00092,000120,000 Over 1 to 1- 1/274,00081,000105,000Over 1-1/2 thru 355,00058,00090,000SAE J429No. 6Grade 5.1ASTM, SAE AND ISO GRADE MARKINGS AND MECHANICAL PROPERTIES FOR STEEL FASTENERSthru 3/885,000-120,000宁波龙益金属有限公司
11、Ningbo Long I Metal Industry Co.,Ltd. 专业生产 不锈钢六角螺母、尼龙锁紧螺母、盖形螺母、法兰螺母、焊接螺母、方螺母、圆螺母、链条滚子Various Type of Stainless Steel fastenersTel:+86 574 86178209 FAX+86 574 86178210 Email: Web: SemsMedium Carbon Steel, Quenched and TemperedASTM A449Low or Medium Carbon Steel, Quenched and TemperedAISI 304AISI 347
12、AISI 316AISI 32175,000AISI 347AISI 321AISI 316AISI 3041/4 and larger-30,0003/7SAE J429Bolts,Screws, Grade 5.2StudsASTM A325 High Strength1/2 thru 185,00092,000120,000Type 1Structural Bolts1-1/8 thru 1- 1/274,00081,000105,000A325ASTM A325Type 2 A325ASTM A3251/2 thru 185,00092,000120,000Type 31-1/8 th
13、ru 1- 1/274,00081,000105,000A325ASTM A354Bolts,1/4 thru 2-1/280,00083,000105,000Grade BBStuds2-3/4 thru 475,00078,000100,000 BBASTM A354105,000109,000125,000Grade BC95,00099,000115,000 BCSAE J429Bolts,Screws, Grade 7SAE J429Bolts,Screws, Grade 8StudsASTM A354Grade BDSAE J429Grade 8.1 No Grade Mark15
14、0,000 min170,000 maxA490Various Type of Stainless Steel fastenersTel:+86 574 86178209 FAX+86 574 86178210 Email: Web: 130,000150,000ASTM A490High Strength Structural BoltsAlloy Steel, Quenched and Tempered1/2 thru 1-1/2120,000130,000StudsMedium Carbon Alloy or SAE 1041 Modified Elevated Temperature
15、 Drawn Steel1/4 thru 1-1/2120,000115,000133,000Medium Carbon Alloy Steel, Quenched and Tempered1/4 thru 1-1/2120,000130,000150,000Alloy Steel, Quenched and Tempered 4Medium Carbon Alloy Steel, Quenched and Tempered 41/4 thru 1-1/2105,00092,000120,000Atmospheric Corrosion Resisting Steel, Quenched an
16、d TemperedAlloy Steel, Quenched and TemperedMedium Carbon Steel, Quenched and TemperedLow Carbon Martensitic Steel, Quenched and Tempered1/2 thru 185,000Low Carbon Martensitic Steel, Quenched and Tempered1/4 thru 185,00092,000120,000ASTM, SAE AND ISO GRADE MARKINGS AND MECHANICAL PROPERTIES FOR STEEL FASTENERS宁波龙益金属有限公司 Ningbo Long I Metal Industry Co.,Lt
