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X15CrNiSi25-21

Steels having oxidation resistance and sufficient high temperature strength as well as good heat resistance under high temperature conditions are called heat resistant steels. Heat resistant steel can be divided into two types: anti-oxidation steel and heat-strength steel. Anti-oxidation steel is also referred to as stainless steel. Heat-strength steel refers to steel that has good oxidation resistance at high temperatures and has high high-temperature strength. Heat resistant steel can be classified into austenitic heat resistance according to its normalized structure

Product introduction

Steels having oxidation resistance and sufficient high temperature strength as well as good heat resistance under high temperature conditions are called heat resistant steels.

Heat resistant steel can be divided into two types: anti-oxidation steel and heat-strength steel. Anti-oxidation steel is also referred to as stainless steel. Heat-strength steel refers to steel that has good oxidation resistance at high temperatures and has high high-temperature strength.

Heat-resistant steel can be classified into austenitic heat-resistant steel, martensitic heat-resistant steel, ferritic heat-resistant steel and pearlitic heat-resistant steel according to its normalizing structure.


Typical use

Heat-resistant steel is commonly used in the manufacture of boilers, steam turbines, power machinery, industrial furnaces, and parts of the aerospace and petrochemical industries that operate at high temperatures.

National brands

chemical composition

Brand Nickel Ni Chromium Cr Nitrogen N Carbon C Manganese Mn Silicon Si Phosphorus P Sulfur S
X15CrNiSi25-21
19.0-22.0 24.0-26.0 0.11 0.2 2 1.5-2.5 0.045 0.015


performance

status Creep limit (1000h) / Mpa
(at the following temperature / ° C)
Creep breaking strength (1000h) / Mpa
(at the following temperature / ° C)
Heat resistant temperature in air / °C
600 700 800 900 1000 1100 600 700 800 900
Quenching 105 50 twenty three 10 3 / 130 40 20 10 1150


Heat treatment

Hardness HBS Heat formation temperature / ° C Heat treatment temperature / °C status Room temperature mechanical properties
Softening annealing Quenching tensile strength
Rm/Mpa
Yield Strength
Rp0.2/Mpa
Elongation
Δ5 (%)
223 1150-800 / 1050-1150 Quenching 550-750 230 30


Application field

  • Industrial mold

    Industrial mold

  • Railway field

    Railway field

  • Ship field

    Ship field

  • Nuclear power

    Nuclear power

  • Mine field

    Mine field

  • Construction machinery

    Construction machinery

  • Petrochemical

    Petrochemical

  • Electronic appliances

    Electronic appliances

ADVANTAGE
Our advantage

Integrity, customer first, excellence

Rich industry experience

RICH INDUSTRY EXPERIENCE

We have been engaged in the research and development and manufacture of metal products for many years, and have accumulated rich experience in the industry. We provide stainless steel coils, stainless steel hot and cold rolled sheets, stainless steel flat plates, etc., which are recognized by the industry with integrity, strength and products!

Advantage1

Reliable product quality, reasonable price

RELIABLE PRODUCT QUALITY

Strive to meet the market demand for various specifications, and to ensure quality, low prices, welcome new and old customers to negotiate and discuss.

Advantage2

Logistics guarantee · perfect after-sales service

STRONG PRODUCTION STRENGTH

We show you the extremely accurate order status and delivery tracking system. The company has obtained ISO9001 quality system certification, and integrates R&D, production, sales and after-sales into a high-tech enterprise. The company has a perfect after-sales service system.

Advantage3
ADVANTAGE
Logistics advantage

Integrity, customer first, excellence

The logistics system escorts your goods

Processing, packaging, distribution, one-stop service

(All kinds of waterproof, export packaging)

Provide free exchanges to reduce your production costs

Orders arrive within 24 hours of delivery