Special Steel


We are stockits and suppliers of stainless steel with precipitation hardening 17/4PH, duplex and super duplex grades. Austenitic, martensitic and ferritic specifications stocked in a large range of shapes and sizes.

Reliable stock a wide range of engineering steels including carbon steel and alloy steel, key steel, Titanium, Tantalum, Nickel, Cupro - nickel, Zirconium, Hastelloy, Incolloy, HR Alloy, Alloy 20, Monel, Inconel, stainless Steel, Niobium, Nimonics, Duplex and Spring Steel products.

All grades can be supplied as bar, plate, sheet or cut from block. Non standard sizes can be produced as steel forgings.




GRADE Duplex Alloy 19D Duplex Alloy 2205 Super Duplex Alloy 2507 Alloy: 250 SMO Nominal Composition in Percent:
UNS No. S32001 S31803 S32750 Ni 18.00
Carbon 0.030 max. 0.03 max. 0.030 max. Cr 20.00
Manganese 4.0 min. / 6.0 max. 2.00 max. 1.20 max. Mo 6.25
Phosphorus 0.040 max. 0.030 max. 0.035 max. Fe 53.00
Sulfur 0.030 max. 0.020 max. 0.020 max. Si 0.80
Silicon 1.00 max. 1.00 max. 0.80 max. Mn 1.00
Chromium 19.50 min. / 21.50 max. 21.00 min. / 23.00 max. 24.00 min. / 26.00 max. C 0.020
Nickel 1.00 min. / 3.00 max. 4.50 min. / 6.50 max. 6.00 min / 8.00 max. Cu 0.75
Molybdenum 0.600 max. 2.50 min. / 3.50 max. 3.50 min / 5.00 max. P 0.030
Nitrogen 0.050 min. / 0.170 max. .08 min. / .20 max. 0.24 min / 0.32 max. S 0.010
Copper 1.00 max. *** 0.50 max. N 0.20

 

Specification:
OD: 6.35mm to 254mm
WT: 0.3mm to 20mm  
Length: MAX 18000mm
International Standard: 
ASTM B111 (ASTM B466, ASTM B359, ASTM 395), JIS H3300, BS 2871, BS EN 12451, EN 12449, GB/T8890 etc.

Available Materials:
UNS No. C 70600 (Cu -Ni- 90/10), C 71500 (Cu -Ni- 70/30) ,C71640, C68700, C44300, C26130 etc.
 


Grade

USA

U.K

Germany

Japan

China GB

ASTM

BS

DIN

JIS H

BFe10-1-1

C70600

CN102

CuNi10Fe1Mn

C7060

BFe30-1-1

C71500

CN107

CuNi30Mn1Fe

C7150

HAL77-2

C68700

CZ110

CuZn22Al

C6870

HSn70-1

C44300

CZ111

CuZn28Sn1

C4430

H68A

C26130

CZ126

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Remark: Subject to the buyer's appointment.

 
Application: 
Steam Turbines, Seawater Desalination Equipments, Petrochemical Plants, Power Plants, Coolers, Boiler, Water Evaporators, Oil Refineries, Shipbuilding etc.
Heat Exchanger , Condenser, Distiller.

Titanium Tube

 

Standard:
ASTM B861, ASTMB337, ASTMB338,Q/BS5631-95,
Grade: GR1 GR2 GR3 GR7 GR9 GR12 GR16 GR17

Specification of Titanium Seamless Tube:


Description

Grade

Size (mm)

Rolled Seamless Tube

GR1 GR2 GR3 GR7 GR9 GR12 GR16 GR17

OD(3-114)*WT(0.2-6.0)*L

Seamless Tube

GR1 GR2 GR3 GR7 GR9 GR12 GR16 GR17

OD(10-159)*WT(0.5-5.0)*
Max length: 18000mm

Extruded Tube

GR2

OD(25-210)*WT(6.0-30) *L


Quality Test of Titanium Seamless Tube:
Tests and inspections ensure the materials meet all of the tests specifications of International standard.
Third party inspection such as TUEV, SGS, LR, MOODY, ITS, DNV, as well as customers’ stage-wise inspection are warmly welcome by CDM.


CDM Provide following chemical and mechanical testing types for Ti TUBE

Chemical composition

Ultrasonic Fracture

Elongation

Visual Inspection

Eddy Current Fracture

Flattening

Annealing

Annealing

Flaring

Dimensional inspect

Tensile and Yield

Hardness