Mẫu chuẩn thép không rỉ Brammer BS17-4PHB
Brammer Standard Company, Inc.Certificate of AnalysisB.S. 17-4PH BAISI Stainless Steel Grade 17-4PH Reference Material Certified Estimate of Certified Estimate of Value1 Uncertainty2 Value1 Uncertainty2Analysis listed as percent by weightC0.0420.003Al0.0350.005Mn0.560.01B0.00360.0002P0.0210.002N0.046 0.002S0.0240.001Sn0.012 0.002Si0.42 0.01 Ti0.0050.001Cu3.35 0.04Ni4.530.04Cr15.600.04Informational values3Mo0.11 0.005Ca(0.0003)Co0.0400.003O(0.0021)Nb0.31 0.01 Ta(0.002)V 0.059 0.005 W(0.01)1 The certified value listed is the present best estimate of the true value based on the results of an interlaboratorytesting program.2 The uncertainties listed are based on value judgments of the material inhomogeneity and possible bias in thedetermined analytical values. No attempt is made to derive exact statistical measurements of imprecision becauseseveral methods were used in the determination of most constituents.3 Data in parentheses are not certified and are provided for information only.The requirements of ISO Guide 31 and ISO Guide 35 were generally followed for the preparation of thisreference material and certificate of analysis. This is a reference material as defined by ISO Guide 30.See reverse side for more information. Certificate Number 17-4PHB-020395Brammer Standard Company, Inc., 14603 Benfer Road, Houston, TX 77069-2895Telephone (281) 440-9396 Fax (281) 440-4432
BS 17-4PH B Certificate Number 17-4PHB-020395-----------------------------------------------------------------------------------------------------------Analysis C Mn P S Si Cu Ni Cr Mo Co Nb V----------------------------------------------------------------------------------------------------------- 1 0.0388 0.536 0.018 0.0221 0.407 3.30 4.481 15.559 0.100 0.0356 0.297 0.051 2 0.0397 0.54 0.019 0.0229 0.41 3.30 4.50 15.56 0.106 0.037 0.298 0.0545 3 0.040 0.548 0.019 0.023 0.416 3.32 4.502 15.572 0.107 0.0384 0.305 0.0575 4 0.0402 0.5513 0.020 0.023 0.416 3.325 4.506 15.58 0.109 0.0385 0.31 0.0583 5 0.041 0.5568 0.020 0.0235 0.417 3.34 4.51 15.58 0.110 0.039 0.312 0.0585 6 0.041 0.559 0.0206 0.0235 0.418 3.349 4.51 15.58 0.11 0.04 0.313 0.0596 7 0.0428 0.56 0.0208 0.0237 0.42 3.36 4.52 15.58 0.110 0.0405 0.313 0.061 8 0.043 0.564 0.0212 0.024 0.421 3.36 4.53 15.597 0.110 0.0408 0.314 0.0611 9 0.043 0.565 0.022 0.024 0.426 3.39 4.54 15.60 0.11 0.041 0.317 0.0613 10 0.0435 0.565 0.0225 0.024 0.426 3.391 4.549 15.600 0.112 0.042 0.063 11 0.044 0.568 0.0227 0.025 0.436 3.40 4.56 15.61 0.112 0.0426 0.064 12 0.0455 0.572 0.0228 0.025 0.439 4.575 15.62 0.114 0.0426 13 0.0459 0.025 0.442 4.58 15.63 14 0.0461 0.0256 4.58 15.64 15 15.65-----------------------------------------------------------------------------------------------------------Average 0.0425 0.557 0.0208 0.0239 0.423 3.349 4.532 15.597 0.109 0.0398 0.3088 0.0591-----------------------------------------------------------------------------------------------------------Std Dev 0.0024 0.011 0.0016 0.0010 0.011 0.035 0.033 0.028 0.004 0.0022 0.0072 0.0038-----------------------------------------------------------------------------------------------------------Certified 0.042 0.56 0.021 0.024 0.42 3.35 4.53 15.60 0.11 0.040 0.31 0.059-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------Analysis Al B N Sn Ti Ca O Ta W -------------------------------------------------------------------------------------- 1 0.0285 0.0033 0.0428 0.011 0.004 0.00025 0.0020 0.001 0.0046 2 0.030 0.00343 0.0450 0.0114 0.005 0.0003 0.0020 0.0017 0.006 3 0.036 0.0035 0.0456 0.012 0.00521 0.0003 0.0023 0.003 0.014 4 0.0375 0.0035 0.0460 0.0128 0.0054 0.0175 5 0.0379 0.0035 0.0471 0.013 0.0055 0.03 6 0.0382 0.0036 0.0474 0.0148 0.006 7 0.040 0.0038 0.0476 8 0.0039 --------------------------------------------------------------------------------------Average 0.0354 0.0036 0.0459 0.0125 0.0052 0.00028 0.0021 0.0019 0.0144--------------------------------------------------------------------------------------Std Dev 0.0044 0.0002 0.0017 0.0014 0.0007 0.00003 0.0002 0.0010 0.0102--------------------------------------------------------------------------------------Certified 0.035 0.0036 0.046 0.012 0.005 (0.0003) (0.0021) (0.002) (0.01) --------------------------------------------------------------------------------------Data in parentheses are not certified but provided for information only.Analysis: Chemical analyses were made on chips prepared by a lathe from thecertified portion of the discs. The laboratories participating in the testingnormally followed the requirements of ISO Guide 25. The individual values listedabove are the average of each analyst's results. Methods of analysis used were acombination of ASTM Standard Methods E 350, E 353, E 572, E 1019, E 1086, plusadditional ICP and AA spectrometric methods.Co-operating Laboratories: Some of the co-operating laboratories were: Allegheny Ludlum Steel Corp., Brackenridge, PennsylvaniaAllegheny Ludlum Steel Corp., Lockport, New YorkAnalytical Associates, Inc., Detroit, MichiganAtlas Specialty Steels, Welland, Ontario, CanadaBrammer Standard Co., Inc., Houston, TexasCrucible Specialty Steel, Syracuse, New YorkJ. Dirats and Co., Inc., Westfield, MassachusettsLECO Corporation, St. Joseph, MichiganLedoux & Company, Teaneck, New JerseyRepublic Engineered Steels, Inc., Canton, OhioSherry Laboratories, Tulsa, OklahomaSlater Steels Corporation, Fort Wayne, IndianaVHG Laboratories, Inc., Manchester, New Hampshire