Stainless Steel

SINOXX Stainless Steel

Name: SINOXX Stainless Steel
Brand: SIJ Metal Ravne

SIJ brand for stainless steels designed for corrosion resistance

SINOXX Stainless Steel from SIJ Metal Ravne is a wide stainless group with more than 10.5% chromium, in austenitic, ferritic, martensitic, precipitation-hardening and duplex grades for corrosion, strength and heat.

Manufactured bySIJ Metal Ravne · HTS Group

Cantilever racks holding stainless steel bars and flats in a steel service centre — SINOXX bars and flats at the service centre.

> 10.5% CrChromium in solid solution

5 familiesAustenitic to duplex

HRC 60SINOXX 4125 / 440C

-196 °CSINOXX 4542, H1150D

Ø1,000 mmForgings up to

Overview

Stainless grades for corrosion, strength and heat

SINOXX is a wide stainless steel product group for applications that need corrosion resistance, strength, wear resistance, thermal resistance, weldability or formability. The brand includes steels with more than 10.5% chromium in solid solution.

Nickel, molybdenum, titanium, niobium, copper, aluminium, nitrogen and other elements are added depending on the required corrosion resistance, strength and service temperature. Some grades are stable in humid atmospheres and resistant to acidic and alkaline environments; others keep their corrosion resistance above 550°C.

SINOXX steels are used in pipelines, furnace parts, heat exchangers, power plants, pressure vessels, flanges, fittings, valves, turbine blades, jet engine parts, molds, dies, bearings, knives and measuring instruments.

Grades

Main SINOXX grades

1.4542 / 17-4PH / AISI 630

SINOXX 4542

Martensitic precipitation-hardening stainless steel with high strength and hardness.

Conditions: H900, H1150, H1150D
Low temperature: down to -196 °C (H1150D)
High temperature: up to around 350 °C

Oil field valve parts, aircraft fittings, pump shafts, gears and jet engine parts.

1.4125 / 440C

SINOXX 4125

High-carbon martensitic stainless steel with high wear resistance.

Hardness: up to around HRC 60
Corrosion resistance: Moderate
Temperature: not above 400°C

Ball bearings, races, gage blocks, molds, dies, knives and measuring instruments.

1.4112 / UNS S44003

SINOXX 4112

Martensitic chromium stainless steel with molybdenum and vanadium.

Hardness: up to around HRC 58
Corrosion resistance: High

Ball bearings, races, gage blocks, molds, dies, cutlery and valve components.

Steel Families

SINOXX steel families and grades

Austenitic

Non-magnetic, around 18% Cr and at least 8% Ni, tough down to very low temperatures.

4301, 4305, 4306, 4307, 4311, 4315, 4541, 4550, 4878, 4948.
With Mo: 4401, 4404, 4406, 4432, 4435, 4436, 4438, 4571, 4539, XM-19.
Heat-resistant: 4828, 4833, 4835, 4841, 4845.

Ferritic

Magnetic, low carbon, 13–17% Cr, resistant to stress-corrosion cracking and atmospheric corrosion.

4000, 4002, 4003, 4016, 4510, 4512.
Heat-resistant: 4713, 4724, 4725, 4742, 4746, 4762, 4767.

Martensitic

Hardenable by quenching and tempering, 11–18% Cr; high-carbon grades for cutting tools.

4006, 4021, 4028, 4034, 4313, 4418, 4112, 4125.

Precipitation-hardening

Fe-Cr-Ni alloys with high strength from precipitation hardening.

4542, 4545, 4980.

Duplex / superduplex

Austenitic-ferritic, high yield and tensile strength, resistant to pitting and stress-corrosion cracking.

4162, 4362, 4462, 4410, 4501.

Stainless steel storage tanks and pipelines at a process plant

In use

SINOXX stainless steels are used in pipelines, heat exchangers, power plants and pressure vessels.

Applications

Where SINOXX is used

Open steam turbine rotor with blade rows in a power plant hall

Power plants and turbines

Turbine blades, shaft housings, sealing rings and shafts.

Stainless steel valves and pipework in a process plant

Oil and gas equipment

Oil and gas, chemical and petrochemical process equipment.

Pipeline valve with red handwheel and bolted flanges

Valves and pipelines

Valves, pumps, flanges, fittings and pipelines.

Bearings and precision parts

Ball bearings and races, gage blocks and measuring instruments.

Aerospace componentsNuclear reactor componentsFood and pharmaceutical equipmentWater treatmentOffshoreHeat exchangersPressure vesselsFurnace partsMolds and dies for plasticsKnives and cutleryShipbuilding shaftsFasteners

Features

Properties and product forms

Properties

High corrosion resistance and good mechanical properties.
Good weldability and formability in selected grades.
High strength in PH and duplex grades; high hardness and wear resistance in martensitic grades.
Heat-resistant grades for high-temperature service.

HTS range

Peeled rounds from about Ø16 mm to Ø380 mm, depending on grade.
Rolled flats 505 mm wide.
Forged blocks 560 mm wide.

SIJ Metal Ravne range

Rolled rounds Ø15–105 mm; peeled rounds Ø15–100 mm; ground rounds Ø6–80 mm.
Forged and turned rounds Ø206–1,000 mm, length 2,000–7,000 mm.
Forgings up to Ø1,000 mm, 10,000 mm long and 20,000 kg.

SIJ Acroni range

Quarto plates 7–130 mm thick, 1,000–2,500 mm wide, up to 9,600 kg.
Strips and sheets 0.35–6.00 mm thick.
Sustainable SIJ green² stainless steel line available.

Benefits

Why SINOXX

Corrosion resistance. High corrosion resistance across a wide grade range.

Strength and hardness. High strength in PH grades and high hardness and wear resistance in martensitic grades.

High-temperature service. Heat-resistant grades suit high-temperature service.

Many product forms. Plates, sheets, strips, bars, flats, blocks and forgings.

Consistent quality. SIJ production control supports consistent quality for regulated industries.

Sustainable option. Sustainable steel option available through green².

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