英制螺栓机械性能要求

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英制（SAE J429）螺栓所用材料： Grade Material and Treatment C Element% Min 1 2 4 5 5.1 5.2 7 8 8.1 SAE 1541 8.2 Low or medium carbon steel Medium Medium Carbon Low or Low or Carbon cold steel quenched medium medium carbon steel drawn steel and tempered carbon steel Medium Carbon alloy steel quenched and tempered -- --- --- 0.55 --- --- 0.55 --- 0.048 0.13 --- 0.28 0.55 --- 0.048 0.058 --- 0.15 0.15 0.30 0.25 --- 0.74 0.28 0.55 --- 0.28 0.55 --- 0.28 0.55 --- 0.15 0.25 0.74 0.048 0.058 0.0005 Max 0.55 Mn Min P Max S Max B Min 0.048 0.048 0.058 0.058 --- --- 0.048 0.048 0.040 0.058 0.058 0.045 --- 0.0005 ---- 0.040 0.048 0.045 0.058 --- --- 英制螺栓（SAE J429）的机械性质：

强度等级 Grade Designation 产品Products 规格Nominal Size Dia In Full Size Bolts， Screws，Studs，Sems Proof Load Tensile Strength 机械性能Machine Test Specimen Of Bolts，Screws，and Studs Yield Strength Tensile Strength ElongationReduction Of Surface Core Hardness Hardness Rockwell Rockwell 伸长率 Area断面收缩 30N Max Min Max Bolts螺栓 1 Screws螺钉 Studs螺柱 Bolts螺栓 1/4 thru 1-1/4 33000 60000 36000 60000 18 35 --- B70 B100 1/4 thru 3/4 Over 3/4 thru 1-1/2 55000 74000 57000 74000 18 35 --- B80 B100 2 Screws螺钉 Studs螺柱 33000 65000 85000 60000 115000 120000 36000 100000 92000 60000 115000 120000 18 10 14 35 35 35 --- --- 54 B70 B100 4 Studs螺柱 Bolts螺栓 1/4 thru 1-1/2 1/4 thru 1 Over 1 thru 1-1/2 No.6 thru 5/8 C22 C32 C25 C34 5 Screws螺钉 Studs螺柱 74000 105000 81000 10500 14 35 50 C19 C30 Bolts螺栓 85000 120000 --- --- --- --- 59.5 C25 C40 5.1d此螺丝有垫片 Screws螺钉 Studs螺柱 Bolts螺栓 Screws螺钉 No.6 thru 1/2 / / / / / / / / / 5.2 7e此螺丝热处理后辗牙1/4 thru 1 85000 120000 92000 120000 14 35 56 C26 C36 Bolts螺栓 Screws螺钉 Bolts螺栓1/4 thru 1-1/2 105000 13300 115000 133000 12 35 54 C28 C34 8 8.1 8.2 Screws螺钉 Studs螺柱 Studs螺柱 Bolts螺栓 Screws螺钉 1/4 thru 1-1/2 120000 150000 130000 15000 12 35 58.6 C33 C39 1/4 thru 1-1/2 1/4 thru 1 120000 120000 150000 150000 130000 130000 150000 150000 10 10 35 35 --- 58.6 C32 C38 C33 C39 2015-9-19第 - 1 - 页 共 19 页

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英制螺栓（ASTM A449）的化学成份和机械性质：

Carbon:碳 0.28-0.55 0.25-0.58 0.15-0.38 0.13-0.41 Manganese min锰 0.60 0.57 0.70 0.67 Phosphorus max磷 0.040 0.048 0.040 0.048 Sulfur ,max硫 Boron ,min硼 Chemical化学成份 Type1 Heat analysis Product analysis Heat analysis Product analysis 0.050 0.058 0.050 0.058 Surface Hardness Reduction of Area ,min % --- --- 0.0005 0.0005 Hardness硬度 Brinell Rockwell HB布氏 HRC洛氏 255to321 223to285 25to34 19to30 --- Type2 强度等级 Grade Designation 产品Products 规格 Nominal Size Dia. In 1/4 thru 1 Proof Load Tensile Strength Full Size Bolts， Screws，Studs， Yield Strength Elongation in 4D min % Rockwell 30N Max / / TYPE2 TYPE1 85ksi 74ksi 55ksi 120ksi 105ksi 90ksi 92ksi 81ksi 58ksi 14 14 14 35 35 35 Bolts螺栓 Studs螺柱 over 1 thru 1-1/2 over 1-1/2 thru3 183t235 配合的螺帽为ASTM A563中的产品：

These values are the as the over-tapping required for zinc coated nuts in Specification ASTM A563

1/4至1-1/2英寸普通产品配合的螺帽为ASTM A563的B普通螺帽（hex）；1-1/2至3英寸普通产品配合的螺帽为ASTM A563的A重型螺帽（heavy hex）；1/4至3英寸镀锌产品配合的螺帽为ASTM A563的DH重型螺帽（heavy hex）

英制螺栓（ASTM A307）的化学成份和机械性质：

Chemical 化学成份 Carbon:碳

Manganese min锰 Phosphorus max磷 Sulfur max硫 Boron min硼 max 0.90 max 0.04 max0.29 Grade Heat analysis Product analysis max0.33 max 0.93 max 0.041 A Heat analysis max 0.90 max 0.04 max0.29 GradeProduct analysis max0.33 max 0.93 max 0.041 B 备注: 1lbf=4.448N 1 ksi=6.9Mpa 1lbf=0.4593kgf Full Size Bolts， max 0.15 --- max 0.05 max 0.051 ① --- --- Surface Hardness Reduction Area min % of Rockwell 规格Nominal Grade Designation Products Size Dia In Less than 3xdia Bolts螺栓 强度等级 产品Screws，Studs， Proof Load Tensile Strength Yield Strength Elongation in 2 in min % Hardness硬度 Brinell Rockwell HB 121-241 max241 HRB 69-100 max100 69-95 max95 30N Max Grade A Grade B Grade C / / / 3xdia and longer Less than 3xdia Min 60ksi 60-100ksi --- --- 18 18 23 / / / / / / Studs螺柱 121-212 max212 3xdia and longer All 58-80ksi 36（50）ksi No hardness required ①Resulfurized steel is not subject to rejection based on product analysis for sulfur 配合的螺帽为ASTM A563中的产品：

1/4至1-1/2英寸普通产品配合的螺帽为ASTM A563的A 普通螺帽（hex）；1-1/2至4英寸普通产品配合的螺帽为ASTM A563的A重型螺帽（heavy hex）；1/4至4英寸镀锌产品配合的螺帽为ASTM A563的A重型螺帽（heavy hex）

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英制螺栓（ASTM A354）的化学成份和机械性质：

Chemical through 1-1/2 in 化学成份 For size Large than1-1/2 in For size Heat analysis Product analysis Heat analysis Product analysis Carbon:碳 Manganese min锰 Phosphorus max磷 0.30-0.53 0.28-0.55 0.35-0.53 0.33-0.55 / / Full Size Bolts， Screws，Studs， Proof Load Tensile Strength Yield Strength Elongation in 2 in min % Reduction of Area min % Sulfur max硫 Boron min硼 max 0.035 max 0.040 max 0.035 max 0.040 max 0.040 max0.045 max 0.040 max0.045 Surface Hardness Rockwell 30N Max / / 强度等级 产品规格Nominal Size Dia In 1/4 to 2-1/2 Hardness硬度 Brinell HB 255-331 235-311 311-363 293-363 Rockwell HRC 26-36 22-33 33-39 31-39 Grade Designation Products Grade BC Grade BD 105ksi 95ksi 120ksi 105ksi 125ksi 115ksi 150ksi 140ksii 109ksi 99ksi 130ksi 115ksi

Bolts螺栓 Studs螺柱 Over 2-1/2 1/4 to 2-1/2 Over 2-1/2 16 16 14 14 50 45 40 40 / / These values are the as the over-tapping required for zinc coated nuts in Specification ASTM A563

译文：这些值为镀锌产品的要求，在ASTM A563中对螺帽有具体要求。

英制螺栓（ASTM A193）的机械性质：

Grade and Class B5 B6 B6X Diameter in. To 1/4 incl. To 1/4 incl. To 1/4 incl. To 2-1/2 incl. Tensile Strength Yield Strength ksi Min 100 110 90 125 115 100 125 110 100 100 100 75 75 0.2% Offset Min 80 85 70 105 95 75 105 95 85 80 75 30 30 Elongation in 4D min % Min 16 15 16 16 16 18 18 17 16 18 18 30 30 Reduction of Area min % Min 50 50 50 50 50 50 50 45 45 50 50 50 50 Hardness硬度 Max Brinell Rockwell Refer To note 1 1 1 -- -- -- --- -- -- 321 321 321 235 235 223 223 -- -- C26 C35 C35 C35 C35 C35 C35 B99 B7 Over2-1/2 to 4 Over 4 to 7 To 2-1/2 incl. 1 B16 Over2-1/2 to 2 Over 4 to 7 To 4 incl. 1 B7M Over 4 to 7 Classes 1 and 1D: B8,B8M,B8P,B8LN,B8MLN Class1: B8C,B8T Class 1A:B8A,B8CA,B8MA,B8PA,B8TA,B8LNA all ,B8MLNA,B8NA,B8MNA,B8MLCuNA Classes 1B and 1D: B8N,B8MN,B8MLCuN Class 1C and 1D: B8R Class 1C: B8RA all all all 80 100 100 35 55 55 30 35 35 40 55 55 223 271 271 B96 C28 C28 75 30 30 50 192 B90 all all B99 B96 B96 1,2 3,4 4 3 3.4 3 3 2015-9-19第 - 3 - 页 共 19 页

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Grade and Class Class 1C and 1D: B8S Class 1C: B8SA Diameter in. all all To 3/4 Over 3/4 to 1 Tensile Strength Yield-Strength ksi Min 0.2% Offset Min Elongation in 4D min % Min Reduction of Area min % Min Hardness硬度 Max Brinell Rockwell 271 271 321 321 321 321 C28 C28 C35 C35 C35 C35 Refer To note 3 3 95 95 125 115 105 100 50 50 100 80 65 50 35 35 12 15 20 28 55 55 35 35 45 45 Class 2: B8,B8C,B8P,B8T,B8N Over 1 to 1-1/4 Over1-1/4 to1-1/2incl. To 3/4 Over 3/4 to 1 3,5 110 100 95 90 96 80 65 50 15 20 25 30 45 45 45 45 321 321 321 321 C35 C35 C35 C35 3,5 3 Class 2: B8M,B8MN,B8MLCuN Over 1 to 1-1/4 Over1-1/4 to1-1/2incl. To 2 incl. Class 2B: B8,B8M2 Over 2 to 2-1/2incl. Over2-1/2 to 3 incl. 95 90 80 85 85 75 65 55 65 60 25 30 30 30 30 40 40 40 60 60 321 321 321 321 321 C35 C35 C35 C35 C35 3,5 Class 2C: B8M3

To 2 incl. Over 2 3,5 NOTES:

1. The minimum temperature for Grades B5, B6X,and B7 shall be 1100°F; for Grade B16, 1200°F;

译文：等级为B5，B6X和B7的最小回火温度为1100°F，而等级为B16的最小

回火温度为1200°F

2. To meet the tensile strength requirements, the hardness shall be over Brinell 201(Rockwell B94)minimum.

译文：硬度一定要在201布氏（94HRB）硬度以上，抗拉强度一定能达到。 3. Class 1 is solution treated-Class 1A is solution treated in the finished condition for corrosion resistance; heat treatment is critical due to physical property requirements. Class 2 is solution treated and strain-hardened. Austenitic steels in the strain-hardened condition may not show uniform properties throughout the section particularly in sizes over 3/4 in .in diameter.

译文：Class 1将其视为1级对待，Class 1A的材料应进行表面处理,具有防腐蚀性

能，Class 2类的各等级的材料应接受碳化物固溶处理后应变硬化奥氏体钢,尤为3/4以上的螺栓,经硬化后可能出现整个面上各部分性能不均匀现象.

4. For diameters 3/4 in. and smaller, a maximum hardness of Brinell 241(Rockwell B 100) is permitted.

译文：直径为3/4或更小的产品，硬度要求为最大241布氏（100HRB）硬度。 5. For diameters 1-1/2 in. and larger, center(core) properties may be lower than

2015-9-19第 - 4 - 页 共 19 页

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indicated by test reports which are based on values determined at mid-radius. 译文：直径为1-1/2或更大产品，芯部性能低于试验报告所点明的性能,因为试验报告依据的数值是在半径中点处测定的。

Table 3 Grade Identification Markings for Popular Grades of Carbon Steel Nuts

Grade Identification Marking NO MARK SAE J995-Grade 5 ASTM A563-Grade DH Carbon Steel Carbon Steel, Quenched and Tempered 1/4 thru 1 120 - C32 12 Nominal Size in. 1/4 thru 1-1/2 1/4 thru 1-1/2 1/4 thru 1 Over 1 thru 1-1/2 1/4 thru 1-1/2 1/4 thru 4 Hardness Proof Load Rockwell硬Stress 度 ksi载荷 Min Max 69 90 120 105 90 144 B55 B68 B69 - B78 C32 C32 C32 C32 C38 See Note参见笔记 3,4 3,4 3,4 11 5 Specification规 ASTM A563-Grade O ASTM A563-Grade A ASTM A563-Grade B SAE J995-Grade 2 Material材料 Carbon Steel Carbon Steel Carbon Steel Carbon Steel Carbon Steel ASTM A563-Grade may be C Quenched and Tempered Atmospheric corrosion ASTM A563-Grade Resistant Steel, C3 may be Quenched and Tempered Carbon Steel ASTM A563-Grade may be D Quenched and Tempered 1/4 thru 4 144 B78 C38 5,9 1/4 thru 4 150 B84 C38 6 1/4 thru 4 175 C24 C38 6 Atmospheric corrosion ASTM A563-Grade Resistant Steel, DH3 Quenched and Tempered ASTM A194-Grade 1 Carbon Steel 1/4 thru 4 175 C24 C38 5,9 1/4 thru 4 130 B70 - 2,7 2015-9-19第 - 5 - 页 共 19 页

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