LonghaiSteel has a complete set of advanced modern technological equipment for smelting, machining, product analysis and testing. We offer special steel and titanium alloy products. Our equipment includes billet casters, high precision alloy steel bar and strip coil rolling mills, ultra-high-power electric arc furnaces, CKW 2000-ton vacuum induction furnaces, refined-smelting ladle furnaces, precision seamless steel tubes, 825 rolling mills and titanium alloy production equipment. LonghaiSteel will make full use of our comprehensive advantages of our processing equipment, brand strategy and modern logistics to optimize our product structure, promote technological innovation, pay close attention to reducing cost and improving efficiency, innovate marketing mechanism and expand the markets with great efforts. Thus, our production operation has remained a good momentum of development

 

A family run business with over 30 years experience in delivering specialist steel specifications. 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 Werkstoff and 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, 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. 

 

Tool Steel BS4659 O1 1.2510 KE672 D2 1.2379 KEA180 D6 1.2436 1.2842 O2 D3 1.2080 KE970 H13 1.2344 KEA145 M2 1.3247  1.3343 S1 1.2542 KE960 1.2550 A2 1.2363 KEA162 P20 1.2311 1.2312 P20S 1.2738 2767 1.2767 KE355 HCNC IBD IP20ID1 ICW IMV  KE896 BS1407 Silver Steel Ground Flat Stock Gauge Plate W1 W2 1.2833 Spring Steel EN42 EN45 EN47 High Speed Steel T1 T4 M42 M35 Toolbits Carbide Flame Cut Plate Key Steel EN6 steel plate Cast Iron Hi-Steel HSLA-80 T Inman Yield NSOH Carbon Chromium Werkstoff Din Euronorm BS ASTM AISI ESR BS EN ISO 4957 VPN Rockwell Brinell Tonnes Tensile.

 

Stainless Steel Martensitic Austenitic Feritic 17-4PH 17-4PH ASTM A564 Grade 630 Condition A H1150+H1150 H1150M H900 UNS S17400 420S29 420S37  254SMO FV520B X42CR13 420S45 1.4021 1.4024 1.4028 1.4034 416S21 410S21 431S29 304 304L 303 304 316 316S31 321S31 310 Duplex F51 1.4462 S31803 F55 1.4501 S32760 AISI  440B 440C A276 AISI steel A182 31803 Duplex 1.4057 1.40051.4112 32760 Super Duplex 1.4006 3Cr12 1.4003 1.4845 1.4305 1.4306 1.4301 1.4404 EN58AN EN58 EN58E EN58J EN58AM EN56 EN56A EN56AM EN56B EN56C EN56D EN57 KE40A Custom 455 AMS 5643 254SMO Titanium 6AL 4V Plasma Cut Aluminium Bronze CA104 A286 Non Ferrous Brass Aluminium Copper 904L

 

Special Alloy AISI 4330 4330V Carbon Steel BS970 EN1A 230M07 SMn28 1.07159 EN3 070M20 1.0402 C22 080M15 080A15 655M13 722M24 905M39 250A53 250A58 735A50 080M50 EN8 080M40 1.0511 080A42 1730 080M46 C40 C45 Key Steel BS46 BS4235 EN9 070M55 080A52 080A42 080A57 1.0535 C50 C55 EN14 EN32 080M15 1.0401 C15 EN10025 S275 C22E Flame Cut Lumsden Precision Ground BS4360 43A Alloy Steel 605M36 EN19T 709M40 708M40 42CrMo4 AISI SAE 4130 4140 4145 1.7225 8620 8620H EN24T 817M40 817M40T 150M19 EN26 EN26W EN26V 826M40 080M46 34CrNiMo6 835M30 4340 1.6582 KE805 EN30B 835M30 AISI 4140 AISI 61 30NiCrMo16-6 1.6747 35NCD16 EN36 KE169 655M13 14NiCr14 SAE 8620 1.5752 KE169 EN40BT 722M24T 32CrMo12 1.7361 EN41B 905M31 905M39 41CrAlMo7 75CR1 EN19 EN24 10083 Spring Steel Blued  EN43 EN45 251A58 EN47 250A58 BS1449 AISI 4130 CS70 CS80 CS100 CS95 1095 1050 1060 1070 Shim Hardened Tempered Annealed Cast Iron BS1452 Grade 250 260 17 420/12 BS2789 SG Grey  1.0507  904L  Case Hardening Steel  Through Hardening Steel  Nitriding Steel  Die Steel  EN43A EN43B EN43C 080M46 SG Iron Spheroidal Graphite Iron Meehanite

 

Standard: GB, ISO, DIN/GL, NF/BV, BS, JIS/JASO/NDS, ASTM/ SAE/ UNS/ AISI