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Welcome to longhai Special Steel Co Ltd. A family run business with over 30 years experience in delivering specialist steel specifications.Special Steel As an ISO 9001 accredited special steel supplier we can help and advise on those hard to find special steel Specifications including British Standard BS970 specifications and BS EN ISO 4957 grades.
With a wide stock range, you'll find Tool Steel specifications, suitable for cold work, hot work, and plastic mould applications. Also ground tool steel products including Silver steel and Ground Flat Stock. tool steel can be supplied to European Standards such as DIN Specifications. We also supply to AISI steel grades and AISI equivalent grades. In addition we are stockists and suppliers of stainless steel with precipitation hardening 17/4PH, 17-4ph stainless steel, ASTM A387 F5, 30CrNiMo8,FV520B, Duplex UNS S31803 and Super Duplex UNS S32760 grades. Austenitic, martensitic and ferritic specifications stocked in a large range of shapes and sizes. We are also steel suppliers of austenitic 11 to 14% High Manganese Steel, which is a work hardening steel grade.
Our to produce better steel-based products are the main used in industrial manufacturing various types of steel plate,round bar, round rod,pipe,tube,coil,stainless steel tube,Forging,mould,round ingot,cold-rolled steel,hot-rolled coil,strap steel,hot-rolled steel,sheet,medium plate,heavy plate,shapped bar,hexahedral bar,octagon bar,cold-rolled coil,casting mould,Rolling,Stainless Steel plate,slab ingot, slab,flat bar,square bar，square steel,pipe case,stainless steel disc.
Our leading products of steel are special steel, tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel and so on, which have formed 12 series and more than 350 varieties with nearly 5000 specifications.
Standard: GB, ISO, DIN/GL, NF/BV, BS, JIS/JASO/NDS, ASTM/ SAE/ UNS/ AISI...
We can produce stainless steel products and processing
- Stellite 6B
- ASTM A709 Gr.50/type 2
- ASTM A709 Gr.50/type 1
- UNS K12249
- ASTM A656 Type 7
- ASTM A656 Type 3
- UNS K12202
- ASTM A633 Gr.E
- UNS K02003
- ASTM A633 Gr.D
- UNS K12000
- ASTM A633 Gr.C
- UNS K01803
- ASTM A633 Gr.B
- UNS K01802
- ASTM A633 Gr.A
- UNS K12700
- ASTM A618 Gr.Ⅲ
- ASTM A618 Gr.Ⅱ
- ASTM A618 Gr.Ⅰb
- ASTM A618 Gr.Ⅰa
- ASTM A607 Gr.70
- ASTM A607 Gr.65
- ASTM A607 Gr.60
- ASTM A607 Gr.55
- ASTM A607 Gr.50
- ASTM A607 Gr.45
- ASTM A588 Gr.K
- UNS K12044
- ASTM A588 Gr.J
- ASTM A588 Gr.H
- ASTM A588 Gr.G
- ASTM A588 Gr.F
- UNS K11567
- ASTM A588 Gr.E
- UNS K11552
- ASTM A588 Gr.D
- UNS K11538
- ASTM A588 Gr.C
- UNS K12043
- ASTM A588 Gr.B
- ASTM A588 Gr.A
- UNS K02703
- UNS K12211
- UNS K12810
- UNS K12010
- ASTM A242 Type2
- UNS K11510
- ASTM A242 Type1
- UNS K12032
- UNS K12040
- UNS K11541
- SAE 1552
- SAE 1548
- SAE 1541
- SAE 1536
- SAE 1527
- SAE 1524
- SAE 1095
- SAE 1090
- SAE 1086
- SAE 1085
- SAE 1084
- SAE 1080
- SAE 1078
- SAE 1075
- SAE 1074
- SAE 1070
- SAE 1065
- SAE 1060
- SAE 1055
- SAE 1050
- SAE 1049
- SAE 1046
- SAE 1045
- SAE 1043
- SAE 1042
- SAE 1040
- SAE 1039
- SAE 1038
- SAE 1037
- SAE 1035
- SAE 1033
- SAE 1030
- SAE 1026
- SAE 1025
- SAE 1023
- SAE 1022
- SAE 1021
- SAE 1020
- SAE 1019
- SAE 1018
- SAE 1017
- ASTM 1572
- ASTM 1566
- ASTM 1561
- ASTM 1552
- ASTM 1551
- ASTM 1548
- ASTM 1547
- ASTM 1541
- ASTM 1536
- ASTM 1527
- ASTM 1526
- ASTM 1525
- ASTM 1524
- ASTM 1522
- ASTM 1518
- ASTM 1513
- UNS G10170
- M1044
- M1031
- M1025
- M1023
- M1020
- M1017
- M1015
- M1012
- M1010
- M1008
- UNS G15720
- UNS G15660
- UNS G15610
- UNS G15520
- UNS G15510
- UNS G15480
- UNS G15470
- UNS G15410
- UNS G15360
- UNS G15270
- UNS G15260
- UNS G15250
- UNS G15240
- UNS G15220
- UNS G15130
- UNS G10950
- UNS G10900
- UNS G10860
- UNS G10840
- UNS G10800
- UNS G10780
- UNS G10750
- UNS G10740
- UNS G10700
- UNS G10690
- UNS G10650
- UNS G10640
- UNS G10600
- UNS G10590
- UNS G10550
- UNS G10530
- UNS G10500
- UNS G10490
- UNS G10460
- UNS G10450
- UNS G10440
- UNS G10430
- UNS G10420
- UNS G10400
- UNS G10390
- UNS G10380
- 52SiCrNi5
- 1.7117
- AISI 4125
- 1.7311
- 20CrMo2
- Fe510
- 1.058
- ST52
- 1.4914
- FeCr60C1N3
- FeCr60C1LP
- FeCr60C10LP
- FeCr60C10
- FeCr60C1
- FeCr60C05LP
- FeCr60C05
- FeCr60C03LP
- FeCr60C03
- FeCr60C01LP
- FeCr60C01
- FeCr50C90Si4LSLP
- FeCr50C90Si4LS
- FeCr50C90Si4LS
- FeCr50C90Si4LP
- FeCr50C90Si4
- FeCr50C90Si2LSLP
- FeCr50C90Si2LS
- FeCr50C90Si2LP
- FeCr50C90Si2
- FeCr50C90LSLP
- FeCr50C90LS
- FeCr50C90LP
- FeCr50C90
- FeCr50C70Si6LP
- FeCr50C70Si6
- FeCr50C70Si6
- FeCr50C70Si4LSLP
- FeCr50C70Si4LS
- FeCr50C70Si4LP
- FeCr50C70Si4
- FeCr50C70Si2LSLP
- FeCr50C70Si2LS
- FeCr50C70Si2LP
- FeCr50C70Si2LP
- FeCr50C70Si2
- FeCr50C70LSLP
- FeCr50C70LS
- FeCr50C70LP
- FeCr50C70
- FeCr50C5LP
- FeCr50C50Si7LP
- FeCr50C50Si7
- FeCr50C50Si4LSLP
- FeCr50C50Si4LS
- FeCr50C50Si4LP
- FeCr50C50Si4
- FeCr50C50Si2LSLP
- FeCr50C50Si2LS
- FeCr50C50Si2LP
- FeCr50C50Si2
- FeCr50C50LSLP
- FeCr50C50LS
- FeCr50C50LP
- FeCr50C50
- FeCr50C5
- FeCr50C40LP
- FeCr50C40
- FeCr50C2LP
- FeCr50C20LP
- FeCr50C20
- FeCr50C2
- FeCr50C1N7Si
- FeCr50C1N7
- FeCr50C1N3
- FeCr50C1LP
- FeCr50C10LP
- FeCr50C10
- FeCr50C1
- FeCr50C05LP
- FeCr50C05
- FeCr50C03LP
- FeCr50C03
- FeCr50C01LP
- FeCr50C01
- FTi70S1
- FTi70S08
- FTi70S05Sn03
- FTi70S05
- FTi35S8
- FTi35S8
- FTi35S7
- FTi35S5
- FTi30
- FTi25
- FeT70A15
- FeT70A112
- FeT70
- FeT40A18
- FeT40A16
- FeT40A10
- FeT30A16
- FeT30A110
- FKhS48R
- FKhS48
- FKhS40R
- FKhS40
- FKhS33R
- FKhS33
- FKhS20R
- FKhS20
- FeCrSi55
- FeCrSi50LC
- FeCrSi50
- FeCrSi48LP
- FeCrSi48
- FeCrSi45
- FeCrSi40
- FeCrSi33
- FeCrSi26
- FeCrSi23
- FeCrSi22
- FeCrSi15
- MnS25(B)
- MnS25(A)
- MnS22(B)
- MnS22(A)
- MnS17(B)
- MnS17(A)
- MnS12(B)
- MnS12(A)
- FeMnSi30LP
- FeMnSi30HP
- FeMnSi30ELP
- FeMnSi28LP
- FeMnSi28
- FeMnSi23MP
- FeMnSi23LP
- FeMnSi23HP
- FeMnSi22MP
- FeMnSi22LP
- FeMnSi22HP
- FeMnSi18LP
- FeMnSi18
- FeMnSi12
- FS90
- FS75
- FS70Al1
- FS70
- FS65
- FS50
- FS45
- FS25
- FS20
- FeSi90Al2
- FeSi90Al1
- FeSi75Al3
- FeSi75Al2
- FeSi75Al1.5
- FeSi75Al1
- FeSi65
- FeSi50
- FeSi45
- FeSi25
- FeSi15
- FeSi10
- FN660
- FN658(f)
- FN658
- FN655S
- FN655(f)
- FN650S
- FeNb65
- FeNb60Ta5A16Sn
- FeNb60Ta5A16
- FeNb60Ta5A12
- FeNb60Ta1A16
- FeNb60Ta1A13.5
- FeNb60Ta1A13
- FMo60(nk)
- FMo60
- FMo58(nk)
- FMo58
- FMo55
- FMo50
- FeMo70Cu1.5
- FeMo70Cu1
- FeMo70
- FeMo60Cu1.5
- FeMo60Cu1
- FeMo60
- FMn90(B)
- FMn90(A)
- FMn88(B)
- FMn88(A)
- FMn78(B)
- FMn78(A)
- FMn70(B)
- FMn70(A)
- FeMn90C20LP
- FeMn90C20
- FeMn90C15LP
- FeMn90C15
- FeMn90C10LP
- FeMn90C10
- FeMn90C05LP
- FeMn90C05
- FeMn90C01LP
- FeMn90C01
- FeMn80C20LP
- FeMn80C20
- FeMn80C15LP
- FeMn80C15
- FeMn80C10LP
- FeMn80C10
- FeMn80C05N2
- FeMn80C05LP
- FeMn80C05
- FeMn80C01LP
- FeMn80C01
- FeMn75C80VLP
- FeMn75C80VHP
- FeMn75C80MP
- FeMn75C80LP
- FeMn75C80HP
- FeMn70C10N5LP
- FeMn70C10N5
- FeMn70C05N5LP
- FeMn70C05N5
- FV80(a)
- FV75(a)
- FV72
- FV70(a)
- FV70
- FV65
- FeW80LC
- FeW80
- FVd50U0.75
- FVd50U0.6
- FVd50U0.5
Steel standards
- TOOL STEELS-DIE STEELS
- HIGH TENSILE STEEL PLATE APPLICATION
- Cobalt Base Alloys
- ASTM A322 - 07 Standard Specification for Steel Bars, Alloy, Standard Grades
- ASTM A311 / A311M - 04(2010) Standard Specification for Cold-Drawn, Stress-Relieved Carbon Steel Bar
- ASTM A304 - 11 Standard Specification for Carbon and Alloy Steel Bars Subject to End-Quench Hardenab
- ASTM A255 - 10 Standard Test Methods for Determining Hardenability of Steel
- ASTM A125 - 96(2007) Standard Specification for Steel Springs, Helical, Heat-Treated
- ASTM A108 - 07 Standard Specification for Steel Bar, Carbon and Alloy, Cold-Finished
- ASTM A29 / A29M - 11a Standard Specification for Steel Bars, Carbon and Alloy, Hot-Wrought, General
- ASTM F2589 - 06 Standard Specification for Ornamental Fences Employing Steel Tubular Pickets
- Standard Specification for Welded Wire Mesh Fence Fabric (Metallic-Coated or Polymer Coated) for Mes
- Standard Specification for Ornamental Fences Employing Galvanized Steel Tubular Pickets
- Longhai Product Standard
- Overview of materials for Medium Alloy Steel
- Alnico® 4 (Isotropic, Cast) Hard Magnetic Alloy
- Alnico® 1 (Isotropic, Cast) Hard Magnetic Alloy
- Overview of materials for Alpha/Beta Titanium Alloy
- Titanium, Ti
- ASTM A390 - 06
